4-Hydroxycoumarin and Related Systems: Sitoselectivity of the Mitsunobu Reaction with Prenyl Alcohols
摘要:
The Mitsunobu reaction leads to the formation of new C-C bonds between prenyl alcohols and 1,3-dicarbonyl compounds like 4-hydroxycoumarin or its nitrogen isoster. Buchapine was obtained through a one-pot procedure from 4-hydroxy-2-quinolone and dimethylallyl alcohol.
A reversible claisen rearrangement of 3-(3,3-dimethylallyl)-4-(3,3-dimethylallyloxy)quinolin-2-one; synthesis of buchapsine and loss of its 1,1-dimethylallyl group
作者:Michael F. Grundon、V.N. Ramachandran
DOI:10.1016/s0040-4039(00)99007-5
日期:1985.1
ReversibleClaisenrearrangement of 3-(3,3-dimethylallyl)-4-(3,3-dimethylallyloxy)quinolin-2-one (5) furnished the alkaloid, buchapsine (6), which readily lost the 1,1-dimethylallyl group; a mechanism for the cleavage reaction is proposed.
4-Hydroxycoumarin and Related Systems: Sitoselectivity of the Mitsunobu Reaction with Prenyl Alcohols
作者:Giancarlo Cravotto、Gian Mario Nano、Giovanni Palmisano、Silvia Tagliapietra
DOI:10.3987/com-03-9737
日期:——
The Mitsunobu reaction leads to the formation of new C-C bonds between prenyl alcohols and 1,3-dicarbonyl compounds like 4-hydroxycoumarin or its nitrogen isoster. Buchapine was obtained through a one-pot procedure from 4-hydroxy-2-quinolone and dimethylallyl alcohol.