METHOD FOR DIRECT FUNCTIONALIZATION OF POLYANILINE AND OTHER MOLECULES HAVING DIIMINOQUINOID RING VIA C-C BOND FORMATION, AND PRODUCT YIELDED THEREWITH
A Serendipitous C−C Bond Formation Reaction between Michael Donors and Diiminoquinoid Ring Assisted by Quaternary Ammonium Fluoride
作者:Vijaykumar V. Paike、R. Balakumar、Hsin-Yu Chen、Hong-Pin Shih、Chien-Chung Han
DOI:10.1021/ol9025843
日期:2009.12.17
An efficient C-C bond formation reaction assisted by a fluoride ion has been identified for N,N'-diphenyl-1,4-phenylenediimine with the compounds having an active methylene group. The reaction follows the typical Michael addition fashion and proceeds to completion within 1 h at 70 degrees C in acetonitrile in the presence of tetrabutylammonium fluoride (TBAF), while the same reaction failed to proceed in the absence of a fluoride anion. The new finding reported herein also offers an unprecedented method for a direct functionalization of polyaniline backbone with versatile functional alkyl groups.