Novel amine-catalysed hydroalkoxylation reactions of activated alkenes and alkynes
作者:Julie E. Murtagh、S�amus H. McCooey、Stephen J. Connon
DOI:10.1039/b414895a
日期:——
Substoichiometric loadings of DBU catalyse the efficient 1,4-addition of alcohols and non-nucleophilic amines such as pyrrole to activated alkenes; the application of this methodology in a one-pot synthesis of a natural product, and as a novel strategy for the synthesis of mono-protected 1,3-carbonyl compounds is reported.
A new synthesis of monosubstituted succinaldehydes and 3-substituted pyrroles from acetonitriles. Formal synthesis of 2,3-dihydro-7-methyl-2H-pyrrolizidin-1-one (Danaidone), a semiochemical of danaid butterflies
作者:Jose Manuel Méndez、Blas Flores、Fernando León、María Eugenia Martínez、Alfredo Vázquez、Gustavo Alberto García、Manuel Salmón
DOI:10.1016/0040-4039(96)00765-4
日期:1996.6
A convenient and versatile synthesis of monosubstitutedsuccinaldehydes and 3-substitutedpyrrolesfromacetonitriles was devised. The methodology was applied to the preparation of , the penultimate intermediate in the Meinwald and Meinwald synthesis of Danaidone.12