Rhodium-Catalyzed Oxidative Cyclization of Arylphosphonic Acid Monoethyl Esters with Alkenes: Efficient Synthesis of Benzoxaphosphole 1-Oxides
作者:Taekyu Ryu、Jaeeun Kim、Youngchul Park、Sanghyuck Kim、Phil Ho Lee
DOI:10.1021/ol401775t
日期:2013.8.2
Rhodium-catalyzed tandem oxidative alkenylation and an intramolecular oxy-Michael reaction were developed using arylphosphonicacid monoethyl esters and alkenes under aerobic conditions, which produced benzoxaphosphole 1-oxides in good to excellent yields.
Rhodium-Catalyzed Oxidative C-H Activation/Cyclization for the Synthesis of Phosphaisocoumarins and Phosphorous 2-Pyrones
作者:Youngchul Park、Jungmin Seo、Sangjune Park、Eun Jeong Yoo、Phil Ho Lee
DOI:10.1002/chem.201302652
日期:2013.11.25
Rhodium‐catalyzed cyclization of phosphinic acids and phosphonic monoesters with alkynes has been developed. The oxidative annulation proceeds with complete conversion of phosphinic acid derivatives and allowed the atom‐economic preparation of useful phosphaisocoumarins with high yield and selectivity. The reaction is tolerant of extensive substitution on the phosphinic acid, phosphonic monoester and alkyne, including
NOVEL PHOSPHININE OXIDE DERIVATIVE AND PREPARATION METHOD THEREOF
申请人:KNU-INDUSTRY COOPERATION FOUNDATION
公开号:US20150344506A1
公开(公告)日:2015-12-03
Provided are a novel phosphinine oxide derivative and a preparation method thereof, and more specifically, the phosphinine oxide derivative includes an oxaphosphinine oxide derivative and an azaphosphinine oxide derivative.
The phosphinine oxide derivative according to the present invention may have a pharmacological activity and a physiological activity, and may be used as a basic framework of a natural product and may be used for development of new drug and synthesis of various medical supplies.
In addition, according to the preparation method of the phosphinine oxide derivative according to the present invention, various phosphinine oxide derivatives with a high yield may be prepared by a simple synthesis process using an intramolecular annulation between a phosphinic derivative and an alkyne derivative in the presence of a rhodium (Rh) catalyst or a ruthenium (Ru) catalyst and an oxidant.
A novel visible-light photoredox-catalyzed phosphinyloxy radical addition/cyclization cascade of arylphosphinic acids or arylphosphonic acidmonoesters with alkynes has been developed, which provides an efficient and practical access to various phosphaisocoumarins by using a dual catalytic system containing an acridinium photosensitizer and a cobaloxime proton-reducing catalyst [Co(dmgH)2]PyCl at ambient
Rhodium-catalyzed oxidative coupling through C–H activation and annulation directed by phosphonamide and phosphinamide groups
作者:Sangjune Park、Boram Seo、Seohyun Shin、Jeong-Yu Son、Phil Ho Lee
DOI:10.1039/c3cc44995e
日期:——
Rhodium-catalyzedoxidative coupling reactions via C-Hactivation and annulation directed by phosphonamide and phosphinamide groups were developed under aerobic conditions, which produced benzazaphosphole 1-oxides and phosphaisoquinolin-1-oxides.