Abstract
A convenient procedure for the synthesis of meso‐substituted dipyrromethanes and 5,10‐disubstituted tripyrranes is described. Different aryl groups appended with electron donating/withdrawing substituents as well as alkyl groups have been incorporated at the methylene bridge (C‐5).
Acknowledgments
The authors are grateful to Council of Scientific & Industrial Research [CSIR, 1(1653)/00/EMR‐II], New Delhi, India, for financial support.
Notes
*Incorporated by using 2‐cyanomethyl‐4,4,6‐trimethyloxazolidine.