A new procedure was developed for the synthesis of racemic analogs of 1,5-dimethyl-branched insect pheromones based on monoalkylation of ethyl acetoacetate with 1-acetoxy-5-bromo-3-methylpentane produced upon decyclization of 4-methyltetrahydropyran.
A universal approach to the synthesis of juvenoid hydroprene and methoprene was developed on the basis of monoalkylation of acetoacetate by 1-acetoxy-5-bromo-3-methylpentane, the product of acidic decyclization of 4-methyltetrahydropyran.
Synthesis of (3S,6RS)- and (3RS,6RS)-Analogs of Component AI of the Aonidiella aurantii Sex Pheromone by Stepwise Alkylation of Acetoacetic Ester
作者:G. Yu. Ishmuratov、R. Ya. Kharisov、M. P. Yakovleva、A. V. Galyautdinova、R. R. Gazetdinov、R. R. Muslukhov、G. A. Tolstikov
DOI:10.1007/s10600-006-0018-5
日期:2005.11
Synthetic approaches to (±)- and (3S)-analogs of the AI component of the Aonidiella aurantii sex pheromone (3S)-methyl-6R-isopropenyldec-9-en-1-ylacetate based on stepwise alkylation of acetoaceticester by 3-butenylbromide and 1,5-bifunctional 3-methylpentanes were investigated.