An Alternative to the Arbuzov Reaction: Generation and Transformation of α-Dialkyl-Substituted Methylphosphonate Carbanions via an SET Reduction Process
作者:Li Zhang、Yewen Fang、Jianxun Shi
DOI:10.1055/a-1959-2742
日期:2023.3
B-alkyl-9-borabicyclo[3.3.1]nonane (B-alkyl-9-BBN). Using the α-alkylethenylphosphonates as radical acceptors, visible-light-driven photocatalytic Giese-type and cyclopropanation reactions based on reductive radical-polar crossover have been successfully developed. The redox-neutral photocatalysis serves as a viable strategy for the preparation of various 1,1-dialkyl-substituted methylphosphonates and
以 B-alkyl Suzuki 交叉偶联为策略,1-烷基取代的乙烯基膦酸酯可以通过钯催化的 α-phosphonovinyl tosylates 与 B-alkyl-9-borabicyclo[3.3.1]nonane (B-alkyl -9-BBN)。使用α-烷基乙烯基膦酸酯作为自由基受体,成功开发了基于还原性自由基-极性交叉的可见光驱动的光催化 Giese 型和环丙烷化反应。氧化还原中性光催化是制备各种 1,1-二烷基取代甲基膦酸酯和 1-烷基环丙基膦酸酯的可行策略。