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Palladium-catalyzed [4 + 4] cycloaddition of 2-pyrones with 2-alkylidenetrimethylene carbonates: access to bridged eight-membered oxygen heterocycles

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00329B, Research Article
Huawei Lin, Biming Mao, Bing Han, Jiayi Luo, Yanqing Ge, Xuerui Zhang, Chang Wang, Hongchao Guo, Chunhao Yuan
A novel palladium-catalyzed [4 + 4] cycloaddition of 2-pyrones with 2-alkylidenetrimethylene carbonates has been developed for the synthesis of bridged eight-membered oxygen heterocycles in good yields and with excellent stereoselectivities.
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Enantioselective synthesis of 8-membered lactone derivatives via organocatalytic cascade reactions

By pubs.rsc.org
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Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00148F, Research Article
Dong-Sheng Ji, Rui Zhang, Xu-Yan Han, Hai-Long Chai, Yucheng Gu, Xiu-Qin Hu, Peng-Fei Xu
The challenging 8-membered lactone derivatives bearing two vicinal chiral stereocenters were synthesized via a cascade reaction mediated by the chiral squaramide.
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Blue light-mediated carbene transfer reaction of thioesters with diazoesters: efficient synthesis of tetrasubstituted Z-enol esters

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00265B, Research Article
Shuncheng Wang, Hua Zhang, Jin Yang, Dongfang Zhang, Xin-Ping Hui
An efficient metal-free, blue light-mediated carbene transfer reaction of thioesters with diazoesters has been achieved. This protocol produced tetrasubstituted Z-enol esters containing arylsulfur groups in good yields under mild conditions.
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Metal-Free Cascade O-H Double Insertion Between I(III)/S(VI)-Ylides, Carboxylic Acids, and Alcohols: Modular Access to Unsymmetrical α,α-O,O-Substituted Ketones

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00453A, Research Article
Shang-Shi Zhang, Jiaohang Wei, Wen-Xuan Zou, Qiong Hu, Mei-Zhu Bao, Dan-Ting Shen, Lin Xiao, Jia-Lin Song, Xiang Liu
The synthesis of unsymmetrical α,α-O,O-substituted ketones via O-H double insertion is appealing but remains constrained due to the lack of compatible coupling partners or uncontrollable selectivity. Herein, we present a...
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Visible-light-mediated catalyst-free synthesis of trifluoromethyl(spiro)-epoxides bearing contiguous quaternary centers

By pubs.rsc.org
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Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00184B, Research Article
Jingchuan Lin, Yu Zhang, Jinxin Wang, Xinyu Han, Shenglan Zhu, Tong Li, Yanping Zhu, Wei-Dong Zhang
Herein, we describe a non-covalent complex-mediated epoxidation strategy that can yield highly selective central spiro-epoxides by irradiation with visible light without the need for catalyst addition.
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Synthesis of benzothiophenes via sulfonium-[3,3]-rearrangement of aryl sulfoxides with allenenitriles

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, 11,2208-2214
DOI: 10.1039/D4QO00121D, Research Article
Lei Zhang, Kun Wan, Huanhuan Wang, Mengyao Wang, Ao Cui, Xin Huang, Bo Peng
A facile synthesis of benzothiophenes from readily available aryl sulfoxides and allenenitriles has been established through sulfonium-rearrangement triggered cyclization.
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Synthesis of enantiopure 1,2,3-triazolylidene-type mesoionic carbene (MIC) conjugate acids featuring a rigid bicyclic scaffold

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, 11,2178-2181
DOI: 10.1039/D4QO00269E, Research Article
Vojtěch Dočekal, Mohand Melaimi, Simona Petrželová, Jan Veselý, Xiaoyu Yan, Guy Bertrand
Chiral NHCs have found numerous applications as ligands for transition metals and in their own right for asymmetric catalysis. We report a synthetic route from L-malic acid to enantiopure 1,2,3-triazoliums with the chiral center in a fused ring.
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Iridium-catalyzed reductive γ-lactonization of ortho-acylbenzoic acids in water: sustainable access to phthalides

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, 11,2220-2230
DOI: 10.1039/D3QO02019C, Research Article
Yang Chen, Jingyu Zhang, Hongguang Du, Renshi Luo, Jiaxi Xu, Zhanhui Yang
Iridium-catalyzed reductive γ-lactonization of ortho-acylbenzoic acids in water provides a practical and sustainable route to phthalides.
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Visible light/copper catalysis enabled Heck-like coupling between alkenes and cyclic sulfonium salts via selective C–S bond cleavage

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, 11,2195-2200
DOI: 10.1039/D3QO02009F, Research Article
Xianqin Liu, Xufeng Li, Linyuan Wang, Yongjia Shi, Jian Lv, Daoshan Yang
A Heck-like coupling of cyclic sulfonium salts with alkenes via selective C–S bond cleavage using a copper complex as a photosensitizer through a visible-light-driven redox-neutral process has been developed.
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Selective deletion of one carbon atom from C60 through benzylamine mediated reactions

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00449C, Research Article
Yaqiong Wang, Yiran Wu, Yuming Yu, Jie Su, Yi Qiu, Liangbing Gan
Benzylamine selectively adds to one of the two carbonyl groups on the 9-membered orifice to form an N,O-aminal moiety. Subsequent oxidation and hydrogen atom transfer lead to a decarboxylation process and formation of a nor [59]fullerene derivative.
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Cr-mediated Photocatalytic Decarboxylative Coupling of alpha-Oxo Acids with Benzylic Pyridinium Salts

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00475B, Research Article
Jia Cao, Yan Liu, Zhixiang Wang, Le Liu
Herein, we report the chromium/photoredox dual catalytic synthesis of ketones using α-oxo acids with benzylic pyridinium salts. This reaction proceeded by photocatalytic generation of acyl radical from α-oxo acids and...
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Cobalt-catalysed Csp3–Csp3 cross-coupling of benzyl Katritzky pyridinium salts with Callyl–O electrophiles

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00402G, Research Article
Mengyu Gao, Corinne Gosmini
Different allylbenzyl derivatives are synthesized by Co-catalyzed reductive cross-coupling from functionalized benzyl Katritzky pyridinium salts and various allylic acetates, ethers or carbonates in moderate to good yields under mild conditions.
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Efficient Synthesis of Benzophosphole Oxides by Ag-Promoted Radical Cycloisomerization

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00552J, Research Article
Open Access
Liyao Ma, Sonia Mallet-Ladeira, Julien MONOT, Blanca Maria MARTIN VACA, Didier Bourissou
Cycloisomerization reactions involving C–P bond formation have been overlooked to prepare P-heterocycles. We discovered here a simple, efficient and versatile route to benzophosphole oxides by reacting ortho-alkynyl secondary phosphine oxides...
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Substituent-controlled divergent cyclization reactions of benzo[c][1,2]dithiol-3-ones and hexahydro-1,3,5-triazines

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00356J, Research Article
Bohao Zhang, Sifan He, Na Dong, Antong Zhu, Haojie Duan, Dunjia Wang, Yao Zhou
An unprecedented metal-free divergent cyclization reaction of benzo[c][1,2]dithiol-3-ones with hexahydro-1,3,5-triazines to assemble six- and eight-membered N-containing heterocycles has been developed.
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NHC-Catalyzed Stereoselective Synthesis of Spirooxindole Lactones by in situ Generated Oxindole-embedded o-Quinone Methides and Aldehydes

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00347K, Research Article
Zhengqiang Cao, Fang Hu, Yunpeng Chu, Jiaxue Pei, Xin-Ping Hui
A novel N-heterocyclic carbene-catalyzed asymmetric [4 + 2] annulation of in situ generated oxindole-embedded o-quinone methides with aldehydes has been developed for the assembly of complicated spirooxindoles. The methodology provides...
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Expedient deaminative phosphorylation and sulfonylation of benzylic tertiary amines enabled by difluorocarbene

By pubs.rsc.org
Published On ::

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00412D, Research Article
Chengbo Li, Yu Guo, Jianke Su, Xinyuan Hu, Qingqing Xuan, Qiuling Song
A deaminative functionalization of aliphatic tertiary amines via the cleavage of C(sp3)–N bonds under transition metal-free conditions was disclosed, which goes through SN2 reaction with various phosphorus and sulfur nucleophiles.
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Stocks that will see action today: November 14, 2024

By www.thehindubusinessline.com
Published On :: Thu, 14 Nov 2024 07:39:24 +0530

Buzzing stocks: Tata Power, India Glycols, Hero MotoCorp, BDL, Firstcry, Mamaearth, MTNL, HAL, Nazara Tech, Sobha, Glenmark Pharma, GVK Power, Medi Assist, Grasim, PNB Housing Fin, Samhi Hotels, Inox Green Energy, Varun Beverages, Piccadilly Agro, 


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Row over CPI(M) leader E.P. Jayarajan’s yet to be published autobiography

By www.thehindu.com
Published On :: Wed, 13 Nov 2024 11:26:48 +0530

Jayarajan clarifies that though he is working on an autobiography, it remains unfinished, and no one has been authorised to publish or distribute it


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Wayanad bypoll turns out to be a reunion for landslides survivors

By www.thehindu.com
Published On :: Wed, 13 Nov 2024 19:19:26 +0530

Their tearful reunion touches many, as they witness the heartbreak of lost connections. We celebrated the previous election, but many who participated then are no longer with us, says a survivor. District administration designated three polling stations for the survivors, two at Neelicappu and one at Meppadi


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One-fourth of people living with diabetes in India, Lancet study estimates

By www.thehindu.com
Published On :: Thu, 14 Nov 2024 08:01:53 +0530

Of the 82.8 crore, India's share formed over a quarter (21.2 crore). Another 14.8 crore were in China, while 4.2 crore, 3.6 crore and 2.2 crore lived in the US, Pakistan and Brazil, respectively, the researchers found


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2024 on track to be hottest year on record

By www.newkerala.com
Published On :: Wed, 13 Nov 2024 12:40:01 +0530


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‘Unfortunate that Congress failed to rein in its rebel candidates…effect could be felt in 7-8 seats’: NCP leader Jayant Patil

By indianexpress.com
Published On :: Wed, 13 Nov 2024 15:41:25 +0000


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Porous carbon nitride rods as an efficient photoanode for water splitting and benzylamine oxidation

By pubs.rsc.org
Published On ::

J. Mater. Chem. A, 2024, Advance Article
DOI: 10.1039/D4TA00237G, Paper
Sanjit Mondal, Gabriel Mark, Ayelet Tashakory, Michael Volokh, Menny Shalom
A polymeric carbon nitride layer with controlled directionality, morphology, and nitrogen defects serves as a photoanode to allow photoelectrochemical (PEC) water-splitting and benzylamine oxidation.
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Correction: Super-adsorbent hydrogel for removal of methylene blue dye from aqueous solution

By pubs.rsc.org
Published On ::

J. Mater. Chem. A, 2024, 12,9242-9246
DOI: 10.1039/D4TA90061H, Correction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Xiao-Sai Hu, Rui Liang, Guoxing Sun
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Aggregation between oligomeric Ir photosensitizers promote efficient and long-lifetime photocatalytic hydrogen evolution

By pubs.rsc.org
Published On ::

J. Mater. Chem. A, 2024, Accepted Manuscript
DOI: 10.1039/D3TA07365C, Paper
Yifan Huang, Shihan Liu, Bo Wang, Ying Wang, Yifan Zhang, Pengyang Deng
In this paper, the aggregation effect between oligomeric Ir photosensitizers on photocatalytic hydrogen evolution was first discovered and investigated. Four oligomeric Ir photosensitizers were synthesized by copolymerization of [Ir(ppy)2(dabpy)](PF6) (H1)...
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The balancing act between high electronic and low ionic transport influenced by perovskite grain boundaries

By pubs.rsc.org
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J. Mater. Chem. A, 2024, Advance Article
DOI: 10.1039/D3TA04458K, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Nadja Glück, Nathan S. Hill, Marcin Giza, Eline Hutter, Irene Grill, Johannes Schlipf, Udo Bach, Peter Müller-Buschbaum, Achim Hartschuh, Thomas Bein, Tom Savenije, Pablo Docampo
Grain size and orientation's impact on charge carriers is explored via a new solvent engineering method for MAPbI3 solar cells. Drift-diffusion simulations connect s-shaped JV curves to slower ions.
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Boosting reaction kinetics of polycrystalline phase Fe7S8/FeS2 heterostructures encapsulated in hollow carbon nanofiber for superior fast sodium storage

By pubs.rsc.org
Published On ::

J. Mater. Chem. A, 2024, Accepted Manuscript
DOI: 10.1039/D4TA01241K, Paper
Hui Cai, Fei Wang, Huiyan Feng, Zhendong Liu, Chengzhi Zhang, Anbang Lu, Xi Zhao, Qiuhong Lu, Quanbing Liu, Jun Tan
Metal sulfides have been regarded as highly competitive anode materials for fast sodium storage due to the excellent redox reversibility and comparatively great electron properties. Nevertheless, metal sulfides suffer from...
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Jack Stoll finds a new home one day after being released by the Eagles

By sports.yahoo.com
Published On :: Wed, 13 Nov 2024 23:51:17 GMT

The Eagles former tight end was quickly picked up off waivers this week, now heading to play for the Dolphins.


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Breaking the Trade-off Between ∆EST and Oscillator Strength in Hybrid LR/SR-CT Compounds for Enhanced TADF Performance

By pubs.rsc.org
Published On ::

J. Mater. Chem. C, 2024, Accepted Manuscript
DOI: 10.1039/D4TC04549A, Paper
Nikhitha R., Anirban Mondal
Achieving an ideal thermally activated delayed fluorescence (TADF) emitter requires balancing a minimal singlet-triplet energy gap (∆EST) with a considerable oscillator strength (f), which are typically mutually exclusive. By strategically...
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Nifty prediction today – November 13, 2024: Bearish. Go short now and on a rise

By www.thehindubusinessline.com
Published On :: Wed, 13 Nov 2024 10:40:26 +0530

Nifty 50 November futures can fall to 23,400


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Bank Nifty Prediction today – November 13, 2024: Short when the support is breached

By www.thehindubusinessline.com
Published On :: Wed, 13 Nov 2024 11:11:35 +0530

Bank Nifty futures is now testing the support at 51,000


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Farmers want baby canal alongside Kalingarayan Canal to be developed

By www.thehindu.com
Published On :: Wed, 13 Nov 2024 18:33:39 +0530

A proposal to set up an effluent treatment plant and to carry out concrete lining of the baby canal, submitted in 2021-22, is under government’s consideration, says a senior official in the Water Resources Department


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Beneficiaries receive ₹22.15 lakh in loans from TAMCO for minority welfare

By www.thehindu.com
Published On :: Wed, 13 Nov 2024 19:25:02 +0530


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Four awards for Senior Chamber Palakkad legion

By www.thehindu.com
Published On :: Wed, 13 Nov 2024 21:07:45 +0530


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Children’s Day: public meet, rally led by girls to be held in Thiruvananthapuram

By www.thehindu.com
Published On :: Wed, 13 Nov 2024 21:41:04 +0530

25,000 students from 200 schools will be part of the rally


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Mamata calls for unity of hills and plains; focuses on development in north Bengal

By www.thehindu.com
Published On :: Thu, 14 Nov 2024 07:55:01 +0530

This is her first official visit to Darjeeling in two years; she did not go to the hills even during the 2024 Lok Sabha election campaigns


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Telangana BJP seeks judicial probe into Vikarabad incident

By www.thehindu.com
Published On :: Wed, 13 Nov 2024 11:57:40 +0530


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BRSV and AISF demand thorough probe into RGUKT student’s death

By www.thehindu.com
Published On :: Wed, 13 Nov 2024 14:02:18 +0530


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ISB Insights Forum 2024 to be held on November 15

By www.thehindu.com
Published On :: Wed, 13 Nov 2024 18:33:55 +0530


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KTR in Delhi to strike a deal with BJP to escape Formula-E probe: Bhatti

By www.thehindu.com
Published On :: Wed, 13 Nov 2024 19:47:03 +0530

Deputy Chief Minister points to BRS call to Maharashtra voters not to vote for Congress


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US Deputy Secretary of State Kurt Campbell to attend inaugural US India Indian Ocean Dialogue in Delhi

By www.thehindubusinessline.com
Published On :: Wed, 13 Nov 2024 10:42:54 +0530

During his visit, on November 13-14, Campbell will also participate in the Critical and Emerging Technologies (iCET) Intersessional to further expand cooperation between the United States and India on technological innovation and production


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'Any relief on bank guarantee will be provided across the sector': Scindia on Vodafone Idea request for waiver of bank guarantees for spectrum

By www.newkerala.com
Published On :: Wed, 13 Nov 2024 17:36:01 +0530


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EU, Belgium, Denmark and Germany envoys visit Adani's Khavda, Mundra businesses, Gautam Adani says It was a privilege

By www.newkerala.com
Published On :: Wed, 13 Nov 2024 17:42:02 +0530


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Vegetable prices sky-rocket in October, food inflation at 10.87%, CPI at 6.21 %

By www.newkerala.com
Published On :: Wed, 13 Nov 2024 17:46:02 +0530


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India's index of industrial production shows 3.1 per cent growth in September 2024

By www.newkerala.com
Published On :: Wed, 13 Nov 2024 17:48:02 +0530


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India will continue to be vocal about climate finances at COP29

By www.newkerala.com
Published On :: Wed, 13 Nov 2024 17:52:02 +0530


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Integrated manufacturing cluster to be developed in Bihar's Gaya

By www.newkerala.com
Published On :: Wed, 13 Nov 2024 17:56:03 +0530


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Centre to deliberate on plans to achieve 500 GW green energy target by 2030

By www.newkerala.com
Published On :: Wed, 13 Nov 2024 18:02:02 +0530


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India's infrastructure push to be among largest in 21st century: KPMG

By www.newkerala.com
Published On :: Wed, 13 Nov 2024 18:14:02 +0530


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India set to become 'major producer' of electric vehicles like China: Mark Mobius

By www.newkerala.com
Published On :: Wed, 13 Nov 2024 18:50:02 +0530


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