Technology Process of (8E)-1-(2,4-dichloro-phenyl)-8-(4-fluoro-benzylidene)-4,5,7,8-tetrahydro-1H-1,2,6-triaza-azulene-3,6-dicarboxylic acid 6-tert-butyl ester
There total 6 articles about (8E)-1-(2,4-dichloro-phenyl)-8-(4-fluoro-benzylidene)-4,5,7,8-tetrahydro-1H-1,2,6-triaza-azulene-3,6-dicarboxylic acid 6-tert-butyl ester which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
(8E)-1-(2,4-dichlorophenyl)-8-(4-fluoro-benzylidene)-4,5,7,8-tetrahydro-1H-1,2,6-triaza-azulene-3,6-dicarboxylic acid 6-tert-butyl ester 3-ethyl ester;
With
lithium hydroxide; water;
In
tetrahydrofuran; ethanol;
at 20 ℃;
With
hydrogenchloride;
In
tetrahydrofuran; ethanol; water;
pH=4;
- Guidance literature:
-
Multi-step reaction with 4 steps
1.1: morpholine / toluene-4-sulfonic acid / water; benzene / 2 h / Heating / reflux
1.2: Heating / reflux
2.1: lithium hexamethyldisilazane / tetrahydrofuran / 1 h / -78 °C
2.2: -78 - 20 °C
3.1: ethanol / 20 °C
4.1: lithium hydroxide; water / tetrahydrofuran; ethanol / 20 °C
4.2: pH 4
With
morpholine; lithium hydroxide; water; lithium hexamethyldisilazane;
toluene-4-sulfonic acid;
In
tetrahydrofuran; ethanol; water; benzene;
- Guidance literature:
-
Multi-step reaction with 4 steps
1.1: morpholine / toluene-4-sulfonic acid / water; benzene / 2 h / Heating / reflux
1.2: Heating / reflux
2.1: lithium hexamethyldisilazane / tetrahydrofuran / 1 h / -78 °C
2.2: -78 - 20 °C
3.1: ethanol / 20 °C
4.1: lithium hydroxide; water / tetrahydrofuran; ethanol / 20 °C
4.2: pH 4
With
morpholine; lithium hydroxide; water; lithium hexamethyldisilazane;
toluene-4-sulfonic acid;
In
tetrahydrofuran; ethanol; water; benzene;