Palladium-catalysed heteroannulation of acetylenic compounds: a facile method for the synthesis of benzofurans
作者:Nitya G. Kundu、Manojit Pal、Jyan S. Mahanty、Swapan K. Dasgupta
DOI:10.1039/c39920000041
日期:——
A convenient and general method for the synthesis of benzofurans from o-iodophenol and acetylenic compounds under palladium-catalysed conditions is described.
本文描述了一种在钯催化条件下,从邻碘苯酚和炔类化合物合成苯并呋喃的便捷且通用的方法。
Iodine-catalyzed efficient synthesis of xanthene/thioxanthene-indole derivatives under mild conditions
作者:Weihang Miao、Pingting Ye、Mengjiao Bai、Zhixin Yang、Suyue Duan、Hengpan Duan、Xuequan Wang
DOI:10.1039/d0ra05217e
日期:——
xanthen-9-ol and thioxanthen-9-ol with indoles has been developed, providing an efficient procedure for the synthesis of xanthene/thioxanthene-indole derivatives with good to excellent yields. This protocol offers several advantages, such as short reaction times, green solvent, operational simplicity, easily available catalyst and mild reaction conditions. Moreover, this method showed good tolerance of functional
Copper(I)-Catalyzed Chemoselective Reduction of Benzofuran-2-yl Ketones to Alcohols with B<sub>2</sub>pin<sub>2</sub> via a Domino-Borylation-Protodeboronation Strategy
作者:Qingqing Xuan、Weiguang Kong、Qiuling Song
DOI:10.1021/acs.joc.7b00596
日期:2017.7.21
A novel copper(I)-catalyzed chemoselective reduction of the carbonyls of benzofuran-2-yl ketones over furan rings with B2pin2 has been developed. This reaction proceeded under mild conditions. High valuable secondary alcohol derivatives of benzofurans were obtained in good to excellent yields with a broad substrate scope. The mechanistic studies suggested that a domino-borylation-protodeboronation
Mild arylboronic acid catalyzed selective [4 + 3] cycloadditions: access to cyclohepta[b]benzofurans and cyclohepta[b]indoles
作者:Kou-Sen Cao、Hong-Xu Bian、Wen-Hua Zheng
DOI:10.1039/c5ob00653h
日期:——
The first example of arylboronic acid catalyzed [4 + 3] cycloaddition reaction is reported.
第一个由芳基硼酸催化的[4 + 3]环加成反应的例子被报道。
Enantioselective Reduction of Benzofuranyl Aryl Ketones
作者:Matthew Clarke、Ian Carpenter
DOI:10.1055/s-0030-1259080
日期:2011.1
Enantioselective transfer hydrogenation of benzofuranyl arylketones proceeds with moderate to good enantioselectivity even when the aryl group is not sterically differentiated by ortho-substituents. The best results are obtained with substrates that are functionalised by electron-withdrawing aryl groups that contrast with the electron-rich benzofuran, which is consistent with [Ru― ArC―H]·Ar π interactions