Title: | "Efficient intramolecular asymmetric reductions of alpha-, beta-, and gamma-keto acids with diisopinocampheylborane" |
Author(s): | Ramachandran PV; Brown HC; Pitre S; |
Address: | "Herbert C. Brown Center for Borane Research, Purdue University, West Lafayette, Indiana 47907-1393, USA. chandran@purdue.edu" |
ISSN/ISBN: | 1523-7060 (Print) 1523-7052 (Linking) |
Abstract: | "[figure: see text] alpha-, beta-, and gamma-Keto acids are reduced with diisopinocampheylborane at room temperature to the corresponding hydroxy acids with predictable stereochemistry in very high ee. The gamma-hydroxy acids produced were conveniently cyclized to the corresponding lactones. This provides a simple synthesis of 4-hexanolide, a component of the pheromone secreted by the female dermestid beetle Trogoderma glabrum" |
Keywords: | Animals Boron Compounds/*chemistry Catalysis Coleoptera Female Keto Acids/*chemistry Lactones/*chemical synthesis/*chemistry Molecular Conformation Molecular Structure *Pheromones/chemistry/metabolism; |
Notes: | "MedlineRamachandran, P V Brown, H C Pitre, S eng Research Support, U.S. Gov't, Non-P.H.S. 2001/06/30 Org Lett. 2001 Jan 11; 3(1):17-8. doi: 10.1021/ol0062291" |