Regio- and stereoselective Diels-Alder reaction of diphenyl 5-methylhexa-1,3,4-trien-3-yl phosphine oxide with N-(4-substituted-phenyl)maleimides and maleic anhydride
作者:Ivaylo K. Ivanov、Ismail E. Ismailov、Valerij Ch. Christov
DOI:10.3998/ark.5550190.p008.267
日期:——
Regioand stereoselective Diels-Alder reaction of diphenyl 5-methylhexa-1,3,4-trien-3-yl phosphine oxide 1 with N-(4-substituted-phenyl)maleimides or maleic anhydride and the formation of a series of the 5-(diphenylphosphinoyl)-4-isopropylidene-2-(4-substituted-phenyl)3a,4,7,7a-tetrahydroisoindole-1,3-diones 5a-g and the 5-(diphenylphosphinoyl)-4isopropylidene-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione
二苯基 5-甲基六-1,3,4-三烯-3-基氧化膦 1 与 N-(4-取代-苯基)马来酰亚胺或马来酸酐的区域和立体选择性 Diels-Alder 反应,并形成一系列 5- (二苯基膦酰基)-4-异亚丙基-2-(4-取代-苯基)3a,4,7,7a-四氢异吲哚-1,3-二酮5a-g和5-(二苯基膦酰基)-4异亚丙基-3a,4,7分别描述了 ,7a-四氢异苯并呋喃-1,3-二酮 3 。