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 stereoselectiveDiels-Alderreaction of diphenyl5-methylhexa-1,3,4-trien-3-ylphosphineoxide 1 with N-(4-substituted-phenyl)maleimides or maleicanhydride 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