作者:Daniel Solé、Joan Bosch、Josep Bonjoch
DOI:10.1016/s0040-4020(96)00065-8
日期:1996.3
A short entry to 3a-(o-nitrophenyl)octahydroindol-4-ones employing ozonolysis and double reductive amination of 2-allyl-2-(o-nitrophenyl)-1,3-cyclohexanedione (9) is described. The symmetric dione 9 is synthesized in a 50% overall yield from 1,3-cyclohexanedione by means of o-nitroarylation followed by O-allylation and subsequent Claisen rearrangement. Configurational and conformational aspects of azabicyclic derivatives 1 (a-k) are discussed.