Sex Pheromone of the Longtailed Mealybug: A New Class of Monoterpene Structure
摘要:
The sex pheromone of the longtailed mealybug, identified as 2-(1,5,5-trimethylcyclopent-2-en-1-yl)ethyl acetate, represents the first example of a new monoterpenoid skeleton. A [2,3]-sigmatropic rearrangement was used in a key step during construction of the sterically congested tetraalkylcylopentene framework.
Sex Pheromone of the Longtailed Mealybug: A New Class of Monoterpene Structure
摘要:
The sex pheromone of the longtailed mealybug, identified as 2-(1,5,5-trimethylcyclopent-2-en-1-yl)ethyl acetate, represents the first example of a new monoterpenoid skeleton. A [2,3]-sigmatropic rearrangement was used in a key step during construction of the sterically congested tetraalkylcylopentene framework.
Synthesis of the Pheromone of the Longtailed Mealybug, a Sterically Congested, Irregular Monoterpenoid
作者:Yunfan Zou、Jocelyn G. Millar
DOI:10.1021/jo901505y
日期:2009.9.18
A straightforward and scaleable Synthesis of the sterically congested pheromone of the longtailed mealybug, with two adjacent quarternary carbons in a cyclopentene ring, was accomplished in 13.5% overall yield. Key steps included regiospecific cyclization of an alpha-diazo-beta-ketoester to build the cyclopentane ring, followed by reduction of the enol triflate of the ketone to place the double bond.
Sex Pheromone of the Longtailed Mealybug: A New Class of Monoterpene Structure
作者:Jocelyn G. Millar、Jardel A. Moreira、J. Steven McElfresh、Kent M. Daane、Amy S. Freund
DOI:10.1021/ol802164v
日期:2009.6.18
The sex pheromone of the longtailed mealybug, identified as 2-(1,5,5-trimethylcyclopent-2-en-1-yl)ethyl acetate, represents the first example of a new monoterpenoid skeleton. A [2,3]-sigmatropic rearrangement was used in a key step during construction of the sterically congested tetraalkylcylopentene framework.