A convenient and efficient unsymmetrical ketone synthesis from acid chlorides and alkyl iodides catalyzed by palladium
作者:Yoshinao Tamaru、Hirofumi Ochiai、Fumio Sanda、Zen-ichi Yoshida
DOI:10.1016/s0040-4039(01)80879-0
日期:——
Unsymmetrical ketones are prepared in good or excellent yields by a palladium catalysed coupling reaction of acidchlorides and alkyl iodides mediated by Zn-Cu couple.
Acid catalyzed intramolecular Diels-Alder reactions in lithium perchlorate-diethyl ether: Enhanced reaction rates and diastereoselectivity
作者:Paul A. Grieco、Scott T. Handy、James P. Beck
DOI:10.1016/s0040-4039(00)77000-6
日期:1994.4
The addition of 1.0–10 mol% of camphorsulfonic acid to 5.0 M lithium perchlorate in diethyl ether dramatically accelerates intramolecular Diels-Alder reactions and enhances the endo-exo selectivity.