Bis(iodozincio)methane, prepared from lead-catalyzed reaction of zinc with diiodomethane, afforded 1,3-diketones either by the reaction with acyl cyanides or by palladium catalyzed reaction with acyl chlorides. Reaction with adipoyl dichloride gave cyclic enol ester by intramolecular reaction.
Cyclopalladated Schiff's base liquid crystals: the effect of the acac group on the thermal behaviour
作者:Gareth W.V. Cave、Donocadh P. Lydon、Jonathan P. Rourke
DOI:10.1016/s0022-328x(97)00751-1
日期:1998.3
The cyclopalladation of mesogenic Schiffs bases and subsequent reaction with a beta-diketone yields novel metallomesogens. Ln particular, use of simple alkyl substituted diketones can have a very dramatic effect on both the melting and clearing point. (C) 1998 Elsevier Science S.A. All rights reserved.