Reaction of 2H-1-benzothiete with diazo compounds in the presence of rhodium(II) acetate
作者:Herbert Meier、Dieter Gröschl
DOI:10.1016/0040-4039(95)01239-e
日期:1995.8
2,3-Dihydrobenzo[b]thiophenes (7a-e) were prepared by the Rh2+ catalyzed reaction of 2H-1-benzothiete (1) and diazo compounds (3a-e). α,β-Unsaturated diazo esters (3b,e) and diazo ketones (3d,e) yielded additionally 4,5-dihydro-1-benzothiepins (11b,c) and 5H-4,1-benzoxathiepins (12d,e), respectively.
通过2 H -1-苯并噻吨(1)与重氮化合物(3a-e)的Rh 2+催化反应,制备了2,3-二氢苯并[b]噻吩(7a -e)。α,β-不饱和重氮酯(3b,e)和重氮酮(3d,e)额外产生4,5-二氢-1-苯并噻吩(11b,c)和5 H -4,1-苯并噻吩(12d,e) , 分别。