Poly[styrene(iodosodiacetate)] reacted with diaryl diselenides, followed by sodium azide, giving 1-azido-2-arylselenoalkanes regioselectively. The polymer reagent could be regenerated and reused.
Several polystyrene-supported selenides and selenoxide have been prepared firstly. These novel reagents were treated with LDA to produce selenium stabilized carbanions, which reacted with aldehydes and alkyl halides, ...Several polystyrene-supported selenides and selenoxide have been prepared firstly. These novel reagents were treated with LDA to produce selenium stabilized carbanions, which reacted with aldehydes and alkyl halides, followed by selenoxide syn-elimination and [2,3] sigmatropic rearrangement respectively to give Z-allylic alcohols stereoselectively.展开更多
基金Project 29932020 was supported by the National Natural Science Foundation of China.
文摘Poly[styrene(iodosodiacetate)] reacted with diaryl diselenides, followed by sodium azide, giving 1-azido-2-arylselenoalkanes regioselectively. The polymer reagent could be regenerated and reused.
文摘Several polystyrene-supported selenides and selenoxide have been prepared firstly. These novel reagents were treated with LDA to produce selenium stabilized carbanions, which reacted with aldehydes and alkyl halides, followed by selenoxide syn-elimination and [2,3] sigmatropic rearrangement respectively to give Z-allylic alcohols stereoselectively.
