A New Asymmetric Synthesis of (S)-14-Methyloctadec-1-ene, the Sex Pheromone of the Peach Leafminer
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作者:Liang Wei、Guo-Guo He、Lu Liu、Meng Tang、Tao Zhang、Hongjin Bai、Zhen-Ting Du
DOI:10.1134/s1070428020060196
日期:2020.6
group was introduced to the position of the carboxylic group in 97% de. After reduction and a couple of chemical operations, the designed key intermediate A1 was obtained. The synthesis of another moiety was started from decane-1,10-diol which was selectively protected and oxidized. The long carbon chain was installed according to a Wittig protocol. After deprotection, oxidization, and methylenation, the
摘要已实现了桃叶min蛾的性信息素14-甲基-1-十八烯的不对称合成。基于手性(S)-4-苄基恶唑烷丁-2-酮的不对称甲基化,通过C 1 + C 10 + C 4 + C 3 程序组装目标分子的碳链。将γ-内酯转化成4-(苄氧基)丁酸,然后在Evan's模板的诱导下,将手性甲基引入到97%de的羧基位置。经过还原和几次化学操作后,设计的关键中间体A1 获得了。另一部分的合成从被选择性保护和氧化的癸烷-1,10-二醇开始。长碳链是根据Wittig协议安装的。脱保护,氧化和亚甲基化后,以7个线性步骤合成目标分子,总收率为30.3%。