Synthesis of Both Enantiomers of Four Different Macrocyclic Lactones
摘要:
Both enantiomers of macrocyclic lactones, 12-tridecanolide (1), 13-tetradecanolide (2), 14-pentadecanolide (3) and 15-hexadecanolide (4), were synthesized utilizing (S)-(-)-beta-hydroxythioacetal (5) as the chiral building block. Key steps are the C-alkylation of a dianion derived from 5 with alkyl dibromides followed by conversion of functional groups and the two macrolactonization. The both enantiomers of 1 similar to 4 have been obtained by reductive desulfurization of the dithiane moiety.
Orthocarbonsäure-ester mit 2,4,10-Trioxaadamantanstruktur als Carboxylschutzgruppe; Verwendung zur Synthese von substituierten Carbonsäuren mit Hilfe von<i>Grignard</i>-Reagenzien
作者:Gundula Voss、Hans Gerlach
DOI:10.1002/hlca.19830660741
日期:1983.11.2
Ortho Esters with 2,4,10-Trioxaadamantane Structure as Carboxyl Protecting Group; Applications in the Synthesis of Substituted Carboxylic Acids by Means of Grignard Reagents
Synthesis of Both Enantiomers of Four Different Macrocyclic Lactones
作者:Yoshihiro Noda、Hitoshi Kashin
DOI:10.3987/com-97-7991
日期:——
Both enantiomers of macrocyclic lactones, 12-tridecanolide (1), 13-tetradecanolide (2), 14-pentadecanolide (3) and 15-hexadecanolide (4), were synthesized utilizing (S)-(-)-beta-hydroxythioacetal (5) as the chiral building block. Key steps are the C-alkylation of a dianion derived from 5 with alkyl dibromides followed by conversion of functional groups and the two macrolactonization. The both enantiomers of 1 similar to 4 have been obtained by reductive desulfurization of the dithiane moiety.