Straightforward Synthesis of Two Pairs of Enantiomeric Butenolides 3-Tetradecyl- and 3-Hexadecyl-5-methyl-2(5 H )-furanone
摘要:
Based on the synthetic method of optically active 3-alkyl-5-methyl-2(5H)-furanones from lactic acid, two pairs of chiral butenolides 3-tetradecyl- and 3-hexadecyl-5-methyl-2(5H)-furanone have been straightforwardly synthesized from methyl stearate and methyl palmitate respectively by aldol condensation with (R)- or (S)-O-tetrahydropyranyl lactal prepared from corresponding ethyl lactate and beta-elimination.
Stereocontrolled synthesis of (3,4,5)-3-alkyl-4-hydroxy-5-methyl-2(3)-dihydrofubanones and derivatives
作者:Rosa M. Ortuño、Joaquim Bigorra、Josep Font
DOI:10.1016/s0040-4020(01)86019-1
日期:1988.1
Absolute and relative configuration has been assigned to somemetabolites from mahuba tree and the coral , by enantio- and diastereo-controlled synthesis of (3,4,5)-3-alkyl-4-hydroxy-5-methyl-2(3)-dihydrofura-nones and their acetyl derivativatives, ()-lactic acid being used as chiral precursor.