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Conjugates of boron clusters with derivatives of natural chlorin and bacteriochlorin
V I Bregadze1, I B Sivaev, I A Lobanova
1A.N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences, 28 Vavilov Str., 119991 Moscow, Russia. bre@ineos.ac.ru
Abstract:
Conjugates of bacteriochlorin p and chlorin e(6) with cobalt bis(dicarbollide) anion [3,3'-Co(1,2-C(2)B(9)H(11))(2)](-) were synthesized using different synthetic approaches. The boronated bacteriochlorin p was prepared by reaction of bacteriochlorin N-amino cycloimide with, bis(dicarbollide)-based carboxylic acid. The boronated chlorin e(6) conjugates were obtained by both "click reaction" of containing alkyne group chlorine with azide derivative of cobaltacarborane and reaction of chorin-based amines with cyclic oxonium derivative of cobalt bis(dicarbollide).
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