A mild two-step hydrolysis of γ,δ-unsaturated anilides
摘要:
Iodolactonization of gamma,delta-unsaturated anilides 2 in the presence of water and subsequent reduction of the resultant iodolactones 3 using zinc in acetic acid yield the carboxylic acids 4 without significant epimerization alpha to the carbonyl group. The diastereoselectivity inherent in iodolactonizations of anilides 2 resembles the kinetic stereoselection found for the corresponding transformations of related carboxylic acids.
METZ, P.;MUES, C., TETRAHEDRON, 44,(1988) N 22, C. 6841-6853
作者:METZ, P.、MUES, C.
DOI:——
日期:——
Thermal o → c rearrangement of n-phenyl-allylimidates
作者:P. Metz、C. Mues
DOI:10.1016/s0040-4020(01)86212-8
日期:1988.1
Properly substituted N-phenyl-allylimidates 1 are shown to undergo preferential O → C sigmatropic rearrangement on heating. The diastereoselectivity of this reaction resembles the one observed in ortho ester Claisenrearrangements.
A mild two-step hydrolysis of γ,δ-unsaturated anilides
作者:Peter Metz
DOI:10.1016/s0040-4020(01)80151-4
日期:1993.1
Iodolactonization of gamma,delta-unsaturated anilides 2 in the presence of water and subsequent reduction of the resultant iodolactones 3 using zinc in acetic acid yield the carboxylic acids 4 without significant epimerization alpha to the carbonyl group. The diastereoselectivity inherent in iodolactonizations of anilides 2 resembles the kinetic stereoselection found for the corresponding transformations of related carboxylic acids.