Enantioselective Arylation of Benzylic C−H Bonds by Copper‐Catalyzed Radical Relay
作者:Wen Zhang、Lianqian Wu、Pinhong Chen、Guosheng Liu
DOI:10.1002/anie.201902191
日期:2019.5.6
A novel enantioselective copper‐catalyzed arylation of benzylic C−H bonds, using alkylarenes as a limiting reagent, has been developed. A chiral bisoxazoline ligand bearing an acetate ester moiety plays a key role in both the reactivity and enantioselectivity of the reaction. The reaction provides efficient access to various chiral 1,1‐diarylalkanes in good yields with good to excellent enantioselectivities
Tough while Recyclable Plastics Enabled by Monothiodilactone Monomers
作者:Yanchao Wang、Yinuo Zhu、Wenxiu Lv、Xianhong Wang、Youhua Tao
DOI:10.1021/jacs.2c11502
日期:2023.1.25
underexplored opportunity for chemically recyclablepolymers. Typical recyclablepolymers are subject to the trade-off between the monomer’s polymerizability and the polymer’s depolymerizability as well as insufficient performance for practical applications. Herein, we demonstrate that a single atom oxygen-by-sulfur substitution of relatively highly strained dilactone is an effective and robust strategy
Synthesis of 2-Pyrazolines with a CF<sub>3</sub>- and Alkyne-Substituted Quaternary Carbon Center via [3 + 2] Cycloaddition of β-CF<sub>3</sub>-1,3-enynes and Diazoacetates
作者:Wei Li、Hengyuan Li、Jie Qiu、Zhenhui Wang、Xiaofeng Li、Ying-Ming Pan、Cheng Hou、Huaifeng Li
DOI:10.1021/acs.joc.2c01428
日期:2022.9.16
Given the importance of both the CF3 group and the alkyne moiety in synthetic/medicinal chemistry, we report here the first example of efficient synthesis of 2-pyrazolines with a CF3- and alkyne-substituted quaternarycarboncenter. This methodology has the advantages of high functional group compatibility, the avoidance of base and open-flask conditions, easily available and easy to handle reagent
Substituted phosphinates and phosphinothioates and their use for the control of weeds
申请人:ZOECON CORPORATION
公开号:EP0065374A1
公开(公告)日:1982-11-24
Novel phenoxy-, phenylthio-, anilino-, benzyl-, pyridyloxy-, pyridylthio-, pyridylamino-, or pyridylmethylphenyl substituted phosphinates and phosphinothioates within the formula
wherein, R is the group
are useful in the control of weeds.