申请人:G. D. Searle & Co.
公开号:US03971827A1
公开(公告)日:1976-07-27
.gamma.-Alkylation of 2-butynoic acid utilizing lithium 2,2,6,6-tetramethylpiperidide and 1-bromo-3-methyl-2-butene, followed by esterification of the resulting 7-methyloct-6-en-2-ynoic acid and treatment of the ester with lithium dimethyl cuprate, yields methyl (Z)-3,7-dimethylocta-2,6-dienoate. The ester is reduced to (Z)-3,7-dimethylocta-2,6-dien-1-ol, commonly known as nerol, which is useful as perfume agent.
利用锂2,2,6,6-四甲基哌啶和1-溴-3-甲基-2-丁烯对2-丁炔酸进行.gamma.-烷基化,随后对所得的7-甲氧基辛-6-炔酸进行酯化,并用锂二甲基杯酸盐处理酯,得到甲基(Z)-3,7-二甲氧基辛-2,6-二烯酸甲酯。将酯还原为(Z)-3,7-二甲氧基辛-2,6-二烯-1-醇,通常称为尼罗尔,可用作香料剂。