Development of a robust immobilized organocatalyst for the redox-neutral mitsunobu reaction
作者:Leijie Zhou、Stefania Perulli、Marco M. Mastandrea、Patricia Llanes、Junshan Lai、Miquel A. Pericàs
DOI:10.1039/d1gc02819g
日期:——
polystyrene-supported version of the Denton catalyst for redox-neutral Mitsunobureactions, (2-hydroxybenzyl)diphenylphosphine oxide, has been developed and used in catalytic inversion of enantiopure secondary alcohols (21 examples, up to 97% yield and 98% ee) with 2-nitrobenzoic and 2,4-dinitrobenzoic acids. The use in the reaction of alternative pronucleophiles has also been explored (8 successful and
Functionalization of 2-Phosphoryl-Substituted Phenols
作者:Yu. I. Rogacheva、D. V. Baulin、V. E. Baulin、A. Yu. Tsivadze
DOI:10.1134/s1070363219080097
日期:2019.8
The nitration, bromination, diazocoupling, sulfonation, and alkylation of the aromatic ring of a series of 2-phosphoryl-substituted phenols have been studied for the first time. 2,6-Diphosphorylphenols have been obtained for the first time via 1,3-phosphorotropic phosphate-phosphonate rearrangement. The alkylation of 2-(diphenylphosphoryl)phenol at the hydroxy group with 2-bromo- and 2-chloroethanols