Synthesis of substituted 3-methylene-2,3-dihydrobenzofurans and 3-methylbenzofurans by rhodium (II)-catalyzed annulation
摘要:
The selective synthesis of substituted 3-methylene-2,3-dihydrobenzofurans and 3-methylbenzofurans has developed through Rh(II)-catalyzed denitrogenative annulation of N-sulfony1-1,2,3-triazole at ambient to mild heating condition, respectively. Further, a one-pot strategy is also developed by using substituted O-propargylphenols through Cu/Rh-catalyzed method to rapidly construct 3-methylene-2,3-dihydrobenzofuran derivatives. (C) 2015 Elsevier Ltd. All rights reserved.
On-Nanoparticle Gating Units Render an Ordinary Catalyst Substrate- and Site-Selective
作者:Minju Kim、Miroslaw Dygas、Yaroslav I. Sobolev、Wiktor Beker、Qiang Zhuang、Tomasz Klucznik、Guillermo Ahumada、Juan Carlos Ahumada、Bartosz A. Grzybowski
DOI:10.1021/jacs.0c09408
日期:2021.2.3
Synthesis of substituted 3-methylene-2,3-dihydrobenzofurans and 3-methylbenzofurans by rhodium (II)-catalyzed annulation
作者:Ying-Yu Chen、Kuan-Lin Chen、Yu-Chang Tyan、Chien-Fu Liang、Po-Chiao Lin
DOI:10.1016/j.tet.2015.06.075
日期:2015.9
The selective synthesis of substituted 3-methylene-2,3-dihydrobenzofurans and 3-methylbenzofurans has developed through Rh(II)-catalyzed denitrogenative annulation of N-sulfony1-1,2,3-triazole at ambient to mild heating condition, respectively. Further, a one-pot strategy is also developed by using substituted O-propargylphenols through Cu/Rh-catalyzed method to rapidly construct 3-methylene-2,3-dihydrobenzofuran derivatives. (C) 2015 Elsevier Ltd. All rights reserved.
Pd(<scp>ii</scp>)-catalyzed hydroarylations/hydroalkenylations of terminal alkynes: regioselective synthesis of allylic, homoallylic, and 1,3-diene systems
作者:Jivan Shinde、Sundaram Suresh、Veerababurao Kavala、Ching-Fa Yao
DOI:10.1039/d4cc00049h
日期:2024.4.2
A Pd-catalyzed regioselective hydroarylation of terminalalkynes containing a heteroatom has been developed via carbopalladation for the synthesis of allylic ethers, amines, and homoallylic alcohols. Moreover, hydroalkenylation of alkynes produces a variety of stereodefined 1,4-dienes with high regioselectivity. The important features of the present protocol are that it is highly regioselective, operationally