β-Bromovinyl tellurides are new difuctional reagents which undergo palladium-catalyzed cross-coupling reaction with alkenes to give conjugated dienyl tellurides.
A regio- and stereo-selective synthesis of multi-substituted 3-pyrrolines has been developed. The multi-substituted 3-pyrrolines were synthesized in good yields by 1,3-dipolar cycloaddition of methyl 2-（phenylselanyl...A regio- and stereo-selective synthesis of multi-substituted 3-pyrrolines has been developed. The multi-substituted 3-pyrrolines were synthesized in good yields by 1,3-dipolar cycloaddition of methyl 2-（phenylselanyl）acrylate with azomethine ylides, followed by N-acylation and oxidation-elimination of phenylseleno group. 2009 Xian Huang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.展开更多
We report here a solid-phase synthesis of 1, 4-disubstituted 1, 2, 3-triazole using polystyrene-supported selenium resin. The resin used here not only works as a simple linker, but also assists the crucial α-alkylati...We report here a solid-phase synthesis of 1, 4-disubstituted 1, 2, 3-triazole using polystyrene-supported selenium resin. The resin used here not only works as a simple linker, but also assists the crucial α-alkylation reaction and selenoxide syn-elimimation, which ensures the purity of the products.展开更多
The Lewis acid mediated polystyrene supported selenium cyclization of chalcones and oxidative cleavage of selenium resins flavonoids in good yields and purities have been reported. induced intramolecular gave the cor...The Lewis acid mediated polystyrene supported selenium cyclization of chalcones and oxidative cleavage of selenium resins flavonoids in good yields and purities have been reported. induced intramolecular gave the corresponding展开更多
The diaryldiselenides reacted with titanocene hydried （Cp2TiH） generted from Cp2TiCl2/i-BuMgBr to give arylselenium complexes of titanocene. They reacted readily with diaryliodoiums salt to give unsymmetical diaryls...The diaryldiselenides reacted with titanocene hydried （Cp2TiH） generted from Cp2TiCl2/i-BuMgBr to give arylselenium complexes of titanocene. They reacted readily with diaryliodoiums salt to give unsymmetical diarylselenides.展开更多
One novel carbon-carbon bond insertion reaction of arynes has been developed. By this reaction β-keto sulfones can insert the triple bond of arynes to prepare polysubstituted ortho-keto benzyl sulfones.
Polymer-supported selenovinyl bromide, easily prepared from polymer-supported selenenyl bromide with acetylene, reacts with different Grignard reagents using a step-by-step strategy to obtain （E）-1, 2-disubstituted ...Polymer-supported selenovinyl bromide, easily prepared from polymer-supported selenenyl bromide with acetylene, reacts with different Grignard reagents using a step-by-step strategy to obtain （E）-1, 2-disubstituted ethenes in good yields.展开更多
基金This work was supported by Natural Science Foundation of Zhejiang Province.
文摘β-Bromovinyl tellurides are new difuctional reagents which undergo palladium-catalyzed cross-coupling reaction with alkenes to give conjugated dienyl tellurides.
基金the National Natural Science Foundation of China(No.20672095)CAS Academician Foundation of Zhejiang Province for financial support
文摘A regio- and stereo-selective synthesis of multi-substituted 3-pyrrolines has been developed. The multi-substituted 3-pyrrolines were synthesized in good yields by 1,3-dipolar cycloaddition of methyl 2-（phenylselanyl）acrylate with azomethine ylides, followed by N-acylation and oxidation-elimination of phenylseleno group. 2009 Xian Huang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
基金the National Natural Science Foundation of China(No.20332060)the Natural Science Foundation of Zhejiang Province(No.Y405407).
文摘We report here a solid-phase synthesis of 1, 4-disubstituted 1, 2, 3-triazole using polystyrene-supported selenium resin. The resin used here not only works as a simple linker, but also assists the crucial α-alkylation reaction and selenoxide syn-elimimation, which ensures the purity of the products.
基金the National Natural Science Foundation of China （No. 20332050）
文摘The Lewis acid mediated polystyrene supported selenium cyclization of chalcones and oxidative cleavage of selenium resins flavonoids in good yields and purities have been reported. induced intramolecular gave the corresponding
基金Project 29672008 was supported by NationalNatural Science Foundation of China.
文摘The diaryldiselenides reacted with titanocene hydried （Cp2TiH） generted from Cp2TiCl2/i-BuMgBr to give arylselenium complexes of titanocene. They reacted readily with diaryliodoiums salt to give unsymmetical diarylselenides.
基金We are grateful to the National Natural Science Foundation of China （Nos. 20332060 and 2472072）
文摘One novel carbon-carbon bond insertion reaction of arynes has been developed. By this reaction β-keto sulfones can insert the triple bond of arynes to prepare polysubstituted ortho-keto benzyl sulfones.
基金We are grateful to the National Natural Science Foundation of China(Project No.20332060)the CAS Academician Foundation of Zhejiang Province.
文摘Polymer-supported selenovinyl bromide, easily prepared from polymer-supported selenenyl bromide with acetylene, reacts with different Grignard reagents using a step-by-step strategy to obtain （E）-1, 2-disubstituted ethenes in good yields.
