Technology Process of 8-(3-nitro-4-hydroxyphenyl)-4,4-difluoro-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene
There total 3 articles about 8-(3-nitro-4-hydroxyphenyl)-4,4-difluoro-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
catalyst: trifluoroacetic acid; 2,3-dichloro-5,6-dicyanoquinone; triethyl amine;
In
dichloromethane;
1 drop of CF3COOH was added to a soln. of pyrrole- and benzadehyde-compounds in CH2Cl2 under N2, stirred for 4 h at ambient temp. in the dark, quinone-compound was added, 30 min stirring, (C2H5)3N was added, after 5 min borate was added, 40 min stirring; the soln. was washed with water and brine, dried over MgSO4, concd. at reduced pressure, silica gel flash column chromy. (10% ethyl acetate-petroleum ether), recrystd. from CHCl3-hexane; elem. anal.;
DOI:10.1039/b902912e
- Guidance literature:
-
2,4-dimethyl-1H-pyrrole; 4-hydroxy-3-nitrobenzaldehyde;
With
trifluoroacetic acid;
In
dichloromethane;
at 20 ℃;
Inert atmosphere;
With
2,3-dicyano-5,6-dichloro-p-benzoquinone;
In
dichloromethane;
for 0.5h;
Inert atmosphere;
With
boron trifluoride diethyl etherate; triethylamine;
for 0.75h;
Inert atmosphere;
DOI:10.1039/b926300d
- Guidance literature:
-
C19H19N3O3;
With
triethylamine;
In
dichloromethane;
for 0.0833333h;
Inert atmosphere;
With
boron trifluoride diethyl etherate;
In
dichloromethane;
for 0.666667h;
Inert atmosphere;
DOI:10.1039/b902912e