A Versatile Protocol for the Preparation of Highly Hindered Aryl Ketones Using Organozinc Reagents
作者:Hyun-Hee Cho、Seung-Hoi Kim
DOI:10.5012/bkcs.2012.33.9.3083
日期:2012.9.20
Despite the numerous outstanding methods for the preparation of simple aryl ketones, there are few examples, providing hinderedaryl ketones. Martin and co-workers reported a convenient synthesis of sterically hinderedaryl ketones utilizing the carbonylative cross-coupling reaction of ortho-disubstituted aryl iodides with aryl boronic acids in the presence of carbon monoxide. In addition, the rhodiumcatalyzed
CHARLTON, JAMES J.;SAYEED, VILAYAT A.;KOH, KEVIN;LAU, WING FUN;LAI, HOI K+, J. AGR. AND FOOD CHEM., 38,(1990) N, C. 1719-1723
作者:CHARLTON, JAMES J.、SAYEED, VILAYAT A.、KOH, KEVIN、LAU, WING FUN、LAI, HOI K+
DOI:——
日期:——
Selective Synthetic Routes to Sterically Hindered Unsymmetrical Diaryl Ketones via Arylstannanes
作者:Marcos J. Lo Fiego、Gustavo F. Silbestri、Alicia B. Chopa、María T. Lockhart
DOI:10.1021/jo102366q
日期:2011.3.18
bulky aroyl chlorides are good reaction partners for the synthesis of two-, three-, and even four-ortho-substituted benzophenones, in good to excellent isolated yields (47−91%). Three simple and direct routes, with differential advantages, are proposed: (i) a catalyst-free protocol, in o-dichlorobenzene (ODCB) at 180 °C; (ii) a room temperature protocol, using AlCl3 (0.5 equiv), in dichloromethane (DCM);