o-Nitrophenylazide was reduced by SmI2 in anhydrous THF at room temperature to produce active intermediate 2 (samarium amide), "living" double-anion in situ which reacted smoothly with α，β-unsaturated ket...o-Nitrophenylazide was reduced by SmI2 in anhydrous THF at room temperature to produce active intermediate 2 (samarium amide), "living" double-anion in situ which reacted smoothly with α，β-unsaturated ketones to afford 2,3-dihydro-1H-1,5-benzodiazepines in good yields under mild and neutral conditions.展开更多
Nitrodisulfides were reduced by SmI2/HMPA in anhydrous THF at room temperature to produce active intermediates (samarium thiolates and amides), which were 'living' double-anions and reacted smoothly with aldeh...Nitrodisulfides were reduced by SmI2/HMPA in anhydrous THF at room temperature to produce active intermediates (samarium thiolates and amides), which were 'living' double-anions and reacted smoothly with aldehydes or ketones to afford benzothiazolines in good yields under mild and neutral conditions.展开更多
Dihydro-(2H)-1 .2.4-benzothiadizine-1. 1-dioixdes were prepared in good yields via reductive cyclization of o-nitrobenzenesulfonamidcs with aldchydes promoted by Sml2 under mild and neutral condition.
基金We thank the National Natural Science Foundation of China (Project No.29872010) NSF of Zhejiang province for financial support.
文摘o-Nitrophenylazide was reduced by SmI2 in anhydrous THF at room temperature to produce active intermediate 2 (samarium amide), "living" double-anion in situ which reacted smoothly with α，β-unsaturated ketones to afford 2,3-dihydro-1H-1,5-benzodiazepines in good yields under mild and neutral conditions.
基金We thank the National Natural Science Foundation of China (Project! No.29872010)the Laboratory of Organometallic Chemistry,
文摘Nitrodisulfides were reduced by SmI2/HMPA in anhydrous THF at room temperature to produce active intermediates (samarium thiolates and amides), which were 'living' double-anions and reacted smoothly with aldehydes or ketones to afford benzothiazolines in good yields under mild and neutral conditions.
文摘Dihydro-(2H)-1 .2.4-benzothiadizine-1. 1-dioixdes were prepared in good yields via reductive cyclization of o-nitrobenzenesulfonamidcs with aldchydes promoted by Sml2 under mild and neutral condition.
