Asymmetric synthesis of the Japanese beetle pheromone via boronic esters

Add time:07/12/2019    Source:sciencedirect.com

The pheromone of the Japanese beetle, [R-(Z)]-5-(1-decenyl)dihydro-2(3H)-furanone (7), has been synthesized efficiently in high enantiomeric purity via 1,2-dicyclohexyl-1,2-ethanediol boronic esters. The synthetic route involves reaction of an α-chloro boronic ester with an alkynyllithium, and provides the first successful example of this substitution process in an asymmetric synthesis.

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