FREE ACID PORPHYRIN AND ITS CONJUGATED MONOANION

被引:31
作者
BRAUN, J
HASENFRATZ, C
SCHWESINGER, R
LIMBACH, HH
机构
[1] FREE UNIV BERLIN,INST ORGAN CHEM,D-14195 BERLIN,GERMANY
[2] UNIV FREIBURG,INST ORGAN CHEM,FREIBURG,GERMANY
来源
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1994年 / 33卷 / 21期
关键词
D O I
10.1002/anie.199422151
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An absolute pKa value of about 36 in acetonitrile is obtained for porphyrin from its reaction with phosphazene bases. The monoanion 1 is stable in aprotic solvents and was characterized by NMR and UV/ Vis spectroscopy. The remaining central proton in the monoanion migrates between the four nitrogen atoms much faster than the two protons in the parent compound. (Figure Presented.) Copyright © 1994 by VCH Verlagsgesellschaft mbH, Germany
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页码:2215 / 2217
页数:3
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