Polystyrene-supported benzyl selenide has been prepared. This novel reagent was treated with LDA to produce a selenium stabilized carbanion, which reacted with alkyl halide, followed by selenoxide syn-elimination, to...Polystyrene-supported benzyl selenide has been prepared. This novel reagent was treated with LDA to produce a selenium stabilized carbanion, which reacted with alkyl halide, followed by selenoxide syn-elimination, to give substituted olefins stereospecificly.展开更多
A novel facile procedure for traceless solid-phase synthesis of 3-substituted isoxazoles in good yields and with excellent purities using polymer-supported vinyl selenide has been developed.
In the presence of BiCl3/Al or BiCl3/Fe, in THF-H2O, allylic (benzylic) bromides or α-bromoketones react with diorganyl diselenides to give allylic (benzylic) selenides orα-organylselenocarbonyl compounds respective...In the presence of BiCl3/Al or BiCl3/Fe, in THF-H2O, allylic (benzylic) bromides or α-bromoketones react with diorganyl diselenides to give allylic (benzylic) selenides orα-organylselenocarbonyl compounds respectively in moderate to good yields.展开更多
Allyl and benzyl selenides were synthesized via reactions of allyl and benzyl bromides and diselenides promoted by Sm/Sb-Cl3 system in aqueous media in moderate to good yields.
基金Project 29932020 was supported by the National Natural Science Foundation of China.
文摘Polystyrene-supported benzyl selenide has been prepared. This novel reagent was treated with LDA to produce a selenium stabilized carbanion, which reacted with alkyl halide, followed by selenoxide syn-elimination, to give substituted olefins stereospecificly.
基金We thank the National Natural Science Foundation of China(No.20562005)NSF of Jiangxi Province for financial support.
文摘A novel facile procedure for traceless solid-phase synthesis of 3-substituted isoxazoles in good yields and with excellent purities using polymer-supported vinyl selenide has been developed.
基金the Natural Science Foundation of the Education Commission of Jiangsu Province
文摘In the presence of BiCl3/Al or BiCl3/Fe, in THF-H2O, allylic (benzylic) bromides or α-bromoketones react with diorganyl diselenides to give allylic (benzylic) selenides orα-organylselenocarbonyl compounds respectively in moderate to good yields.
基金Project supported by the National Natural Science Foundation of China (Nos.29872010 and 294938004), the Natural Science Foundation of Zhejiang Province and the Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Acade
文摘Allyl and benzyl selenides were synthesized via reactions of allyl and benzyl bromides and diselenides promoted by Sm/Sb-Cl3 system in aqueous media in moderate to good yields.
