Rhodium–copper–TBAF-catalyzed hydroarylation of alkynes with aryl Trimethoxysilanes
摘要:
A rhodium-copper-TBAF-catalyzed hydroarylation of alkynes with aryl trimethoxysilanes is described. The procedure utilizes a catalytic amount of copper(II) acetate, rhodium, PPh3 and TBAF center dot 3H(2)O under air. Some asymmetric alkynes gave the products with high regioselectivities. (C) 2009 Elsevier Ltd. All rights reserved.
Direct Arylation of Alkenes with Aryl Iodides/Bromides through an Organocatalytic Radical Process
作者:Chang-Liang Sun、Yi-Fan Gu、Bin Wang、Zhang-Jie Shi
DOI:10.1002/chem.201101562
日期:2011.9.19
A radical addition: A KOtBu‐complex‐promoted radicalarylation of polysubstituted alkenes with aryliodides/bromides proceeds in high efficiency (see scheme). Benzofuran derivatives are also produced starting from readily available allyl 2‐iodophenyl ethers.
自由基添加:多取代烯烃与芳基碘化物/溴化物的KO t Bu络合物促进的自由基芳基化反应高效进行(参见方案)。苯并呋喃衍生物也是从容易获得的烯丙基2-碘苯基醚开始生产的。