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Synthetic Applications of the Baylis–Hillman Reaction: Simple and Convenient Synthesis of Five Important Insect Pheromones
Author(s) -
Das Biswanath,
Banerjee Joydeep,
Chowdhury Nikhil,
Majhi Anjoy,
Mahender Gurram
Publication year - 2006
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200690090
Subject(s) - sex pheromone , chemistry , pheromone , insect , stereoselectivity , baylis–hillman reaction , organic chemistry , stereochemistry , adduct , botany , biology , catalysis
Abstract A simple and convenient synthesis of five important insect pheromones by means of Baylis–Hillman adducts is described, i.e. , of (2 E ,4 S )‐2,4‐dimethylhex‐2‐enoic acid ( 1 ), a mandibular‐gland secretion of the male carpenter ant in the genus Camponotus , of (+)‐( S )‐manicone ( 2 ) and (+)‐( S )‐normanicone ( 3 ), two mandibular‐gland constituents of Manica ants, and of (+)‐dominicalure‐I ( 6 ) and (+)‐dominicalure‐II ( 7 ), two aggregation pheromones of the lesser grain borer Rhyzopertha dominica (F). For the first time, the potential of the Baylis–Hillman chemistry for the stereoselective synthesis of trisubstituted olefins was successfully applied to the synthesis of these pheromone compounds.