Structural modification studies of 3-piperonylsydnone. 2. Synthesis of piperonyl-substituted hydantoin, thiohydantoin, thiazolidinedione, rhodanine, imidazolinone, and related compounds
作者:William H. Burton、William L. Budde、Chia-Chung Cheng
DOI:10.1021/jm00299a061
日期:1970.9
A new synthesis of 4-aryl-2-benzazepine-1,5-diones
作者:M. Rita Paleo、Domingo Domínguez、Luis Castedo
DOI:10.1016/s0040-4039(00)77616-7
日期:1993.4
Paleo M. Rita, Dominguez Domingo, Castedo Luis, Tetrahedron, 50 (1994) N 11, S 3627-3638
作者:Paleo M. Rita, Dominguez Domingo, Castedo Luis
DOI:——
日期:——
US5378727A
申请人:——
公开号:US5378727A
公开(公告)日:1995-01-03
Synthesis of 4-aryl-2-benzazepine-1,5-diones by photocyclization of N-(2-arylethyl)phthalimides
作者:M.Rita Paleo、Domingo Domínguez、Luis Castedo
DOI:10.1016/s0040-4020(01)87039-3
日期:1994.3
The photocyclization of N-(2-arylethyl)phthalimides to 4-aryl-2-benzazepine-1,5-diones is described. We found that the presence of electron donating substituents on the aryl ring (as in 10a and b) is necessary for the cyclization process to occur. The procedure also allowed synthesis of 2-benzazepinediones with a carboxylate group at C3 (11c and d) which were obtained as 1:1 mixture of diastereoisomers