| Literature DB >> 12739647 |
Mahendra Nath1, John C Huffman, Jeffrey M Zaleski.
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.Entities:
Year: 2003 PMID： 12739647
Source DB: PubMed Journal: Chem Commun (Camb) ISSN： 1359-7345 Impact factor: 6.222