Thermal and hyperbaric addition ofN,N- andN,O- binucleophiles on cycloalkylidenic bromo esters
作者:Alexandre Y. Rulev、Jacques Maddaluno
DOI:10.1002/poc.493
日期:2002.8
and N,O- and N,N-binucleophiles (such as ethylenediamines or aminoethanols) provides morpholin-2-ones and piperazin-2-ones. Thus, in contrast to simple primary amines, binucleophiles do not form spirocyclic derivatives. The expected Michael addition competes with a cascade reaction consisting of a migration of the double bond followed by the substitution of the newly established allylic halogen and a