Disymmetrically substituted oligophenyleneethynylene (OPE) derivatives have
been prepared by a new iterative method and attached to C, by a 1,3-dipola
r cycloaddition of the azomethine ylides generated in situ from the corresp
onding OPE aldehydes and sarcosine. (C) 2001 Published by Elsevier Science
Ltd.