FIELD: organic chemistry. SUBSTANCE: product: 5,15-di(p-nitrophenyl)-3,7,13,17-tetramethyl-2,8,12,18-tetra- butylporphin. Yield is 37.9%. Reagent 1: 5,5′-dicarboxy-4,4′-dimethyl-3,3′- dibutyldipyrromethane. Reagent 2: p-nitrobenzealdehyde. Reaction conditions: in the presence of zinc acetate in the mixture of dimethyl- formamide with trifluoroacetic acid (concentration of latter is 0.5-10 vol. % ), at 150-170 C. EFFECT: improved method of synthesis. 1 tbl
Title | Year | Author | Number |
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METHOD FOR PREPARATION OF 5,15-DIPHENYLPORPHINS | 0 |
|
SU1671664A1 |
METHOD FOR PREPARATION OF 5,15-DI(NITROPHENYL)-PORPHINS | 0 |
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5,15-BIS-(4'-ACRYLAMIDOPHENYL)-3,7,13,17-TETRAMETHYL-2,8,12,18-TETRABUTYLPORPHYNE AS COLORING SUBSTANCE OF OPTICAL FILTER | 2005 |
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5,15-BIS-(4'-ALLYLOXYPHENYL)-3,7,13,17-TETRAMETHYL-2,8,12,18-TETRABUTYLPORPHYINE AND 5,15-BIS-(3'-ALLYLOXYPHENYL)-3,7,13,17-TETRAMETHYL-2,8,12,18-TETRABUTYLPORPHYNE | 2005 |
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5-(2'-ACRYLAMIDOPHENYL)-15-(3',5''-DI-TERTIARY-BUTYLPHENYL)-3,7,13,17-TETRAMETHYL-2,8,12,18-TETRAETHYLPORPHYNE AS COLORING SUBSTANCE OF OPTICAL FILTER | 2005 |
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5-(4′-ALLYLOXYPHENYL)-15-PHENYL-3,7,13,17-TETRAMETHYL-2,8,12,18-TETRABUTYLPORPHYNE AS DYEING SUBSTANCE FOR OPTICAL FILTER | 2005 |
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RU2277555C1 |
METHOD OF SYNTHESIS OF OXYPHENYL-SUBSTITUTED PORPHYRINS | 0 |
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SU1684284A1 |
5,15-BIS(4'-BIS-L-TYROSINYLAMIDOPHENYL)-10,20-BIS(N-METHYLPYRIDINIUM-3'-YL)PORPHIN DIOODIDE, SHOWING THE PROPERTY OF BINDING SARS-COV-2 VIRUS S-PROTEIN | 2022 |
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RU2784940C1 |
METHOD OF OBTAINING 5,5-DIBROMDIPYRROMETAN HYDROMBOMIDES | 0 |
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SU1578129A1 |
ZINC 5,15-DIAMINOTETRABENZOPORPHYNATE | 2011 |
|
RU2454417C1 |
Authors
Dates
1994-08-15—Published
1991-04-22—Filed