Title of article :
Accelerated Bergman cyclization of porphyrinic-enediynes
Author/Authors :
Nath، Mahendra نويسنده , , Huffman، John C. نويسنده , , Zaleski، Jeffrey M. نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
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.
Keywords :
combing , second order Dehn function , asynchronously automatic group
Journal title :
CHEMICAL COMMUNICATIONS - LETCHWORTH
Journal title :
CHEMICAL COMMUNICATIONS - LETCHWORTH
