Synthesis of 23-, 25-, 27-, and 29-Membered (<i>Z</i>)-Selective Unsaturated and Saturated Macrocyclic Lactones from 16- and 17-Membered Macrocyclic Lactones and Bromoalcohols by Wittig Reaction, Yamaguchi Macrolactonization, and Photoinduced Decarboxylative Radical Macrolactonization
作者:Tomoya Iwasaki、Yuka Tajimi、Kenta Kameda、Callum Kingwell、William Wcislo、Kazuyuki Osaka、Mugen Yamawaki、Toshio Morita、Yasuharu Yoshimi
DOI:10.1021/acs.joc.9b00870
日期:2019.6.21
A new strategy for the synthesis of 23-, 25-, 27-, and 29-membered (Z)-selective unsaturated and saturated macrocyclic lactones from commercially available 16- and 17-membered macrocyclic lactones and bromoalcohols by Wittig reaction, Yamaguchi macrolactonization, and photoinduced decarboxylative radical macrolactonization is described. The position of the unsaturated part in the macrocyclic lactones
一种新的策略,可通过Wittig反应,山口宏内酯化,由Wittig反应从市售的16和17元大环内酯和溴代醇合成23、25、27和29元(Z)选择性不饱和和饱和大环内酯,并且描述了光诱导的脱羧自由基大内酯化。大环内酯中不饱和部分的位置可以通过改变原料中的碳数来控制。该方案可以从简单的起始原料容易地获得所需的大环(Z)-选择性不饱和和饱和大环内酯。