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.
Ruthenium-Catalyzed C–H Activation/Cyclization for the Synthesis of Phosphaisocoumarins
作者:Youngchul Park、Incheol Jeon、Seohyun Shin、Jiae Min、Phil Ho Lee
DOI:10.1021/jo401608v
日期:2013.10.18
ruthenium-catalyzed oxidative cyclization of phosphonic acidmonoesters or phosphinic acids with alkynes has been developed for the synthesis of a wide range of phosphaisocoumarins in good to excellent yields under aerobic conditions. A multitude of arylphosphonic acidmonoesters and arylphosphinic acids having electron-donating and -withdrawing groups were oxidatively cyclized. Various diarylacetylenes
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.
Phosphaannulation of Aryl- and Benzylphosphonic Acids with Unactivated Alkenes<i>via</i>Palladium-Catalyzed CH Activation/Oxidative Cyclization Reaction
作者:Woo Hyung Jeon、Jeong-Yu Son、Sun-Eung Kim、Phil Ho Lee
DOI:10.1002/adsc.201400793
日期:2015.3.9
An efficient phosphaannulation via palladium(II)‐catalyzed CH activation/oxidative cyclization by the 6‐endo mode is reported for the synthesis of 3‐substituted phosphaisocoumarins from the reaction of arylphosphonic acids with unactivated alkenes under aerobic conditions. Also, α,α‐disubstituted benzylphosphonic acids were phosphaannulated with unactivated alkenes, producing phosphaisochromanones
NOVEL CYCLIC PHOSPHINATE DERIVATIVES AND METHOD OF PREPARING THE SAME
申请人:KNU-INDUSTRY COOPERATION FOUNDATION
公开号:US20150315219A1
公开(公告)日:2015-11-05
Provided are novel cyclic phosphinate derivatives and a method of preparing the same, and more particularly, cyclic phosphinate derivatives including benzoxaphosphole oxide derivatives and benzoxaphosphorin oxide derivatives, and a method of preparing the same. The cyclic phosphinate derivative according to the present invention may have pharmacological and physiological activities, be used as the basic skeleton of the natural material, and be used in development of a new drug, and synthesis of various medicines. In addition, with the method of preparing a cyclic phosphinate derivative according to the present invention, various cyclic phosphinate derivatives may be prepared with high yield through a simple synthetic process by performing an intramolecular carbon-oxygen coupling reaction on the phosphinic acid derivative in the presence of a palladium (Pd) catalyst, an oxidant, and a base.