Enantioselective Total Synthesis of Cannabinoids via a Tandem Conjugate Addition/Enolate Alkylation Annulation with Ambiphilic Organoboronates
作者:Jirong Luo、Jeremy A. May
DOI:10.1021/acs.orglett.3c00090
日期:2023.2.3
addition/enolate alkylation annulation with a novel ambiphilic trifluoroborate in seven steps. A new class of alkenyl and aryl ambiphilic trifluoroborates were synthesized and showed great compatibility with various functional groups, high yields, and excellent enantio- and diastereoselectivity. A novel benzo-fused cannabinoid analogue and tandem quaternary stereocenter-containing reaction products
大麻素研究依赖于合成衍生物以进行构效关系研究。(−)-Δ 9 -四氢大麻酚和大麻二酚是通过串联对映选择性共轭加成/烯醇化物烷基化环化与新型双亲三氟硼酸盐分七步合成的。合成了一类新的烯基和芳基双亲三氟硼酸酯,并显示出与各种官能团的良好相容性、高产率以及出色的对映和非对映选择性。合成了一种新型苯并稠合大麻素类似物和含有串联季立体中心的反应产物,具有良好至优异的对映选择性。