Use of Organoboranes in the Synthesis of Pheromones: A Convenient Synthesis of (<i>Z</i>)-6-Heneicosen-11-one and (<i>Z</i>)-5-Undecen-2-one, Pheromones from the Douglas Fir Tussock Moth and the Bontebok, Respectively
作者:J. White、C. G. Whiteley
DOI:10.1055/s-1993-26016
日期:——
Treatment of thexylborane with a halomagnesiumdialkylcuprate afforded the corresponding (B-alkyl)thexylborane in favourable yields. A second reaction with a halomagnesiumdialkenylcuprate produced the totally mixed (B-alkyl)(B-alkenyl)thexylborane. Subsequent treatment with sodium cyanide and benzoyl chloride followed by alkaline peroxide yielded an unsaturated ketone. In this way, (Z)-6-heneicosen-11-one, a sex pheromone of the Douglas Fir Tussock Moth, and (Z)-5-undecen-2-one, a pheromone from the pedal gland of the Bontebok, were prepared.
对thexylborane进行卤化镁二烷基铜化合物的处理,得到相应的(B-烷基)thexylborane,产率良好。与卤化镁二烯基铜化合物的第二次反应生成了完全混合的(B-烷基)(B-烯基)thexylborane。随后用氰化钠和苯甲酰氯处理,再经过碱性过氧化物的反应,得到了不饱和酮。通过这种方式,制备了道格拉斯冷杉毛虫的性信息素(Z)-6-二十烯-11-酮,以及来自Bontebok脚腺的性信息素(Z)-5-十一烯-2-酮。