Issue 7, 2003
From the journal:

Chemical Communications

Accelerated Bergman cyclization of porphyrinic-enediynes†

Mahendra Nath,a   John C. Huffmana  and  Jeffrey M. Zaleski*a  

* Corresponding authors

a Department of Chemistry, Indiana University, Bloomington, IN, USA
E-mail: Zaleski@indiana.edu
Fax: 812-855-8300
Tel: 812-855-2134

Abstract

The Bergman cyclization of simple diethynylporphyrinic-enediynes exhibits a double activation barrier to the formation of Bergman cyclized product. Addition of H-atom acceptor accelerates the formation of the picenoporphyrin, indicating that the second barrier is rate limiting.

Graphical abstract: Accelerated Bergman cyclization of porphyrinic-enediynes

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Article information

DOI
https://doi.org/10.1039/B212923J
Article type
Communication
Submitted
31 Dec 2002
Accepted
14 Feb 2003
First published
05 Mar 2003

Chem. Commun., 2003, 858-859

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Accelerated Bergman cyclization of porphyrinic-enediynes

M. Nath, J. C. Huffman and J. M. Zaleski, Chem. Commun., 2003, 858 DOI: 10.1039/B212923J

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