1,4-dihydro-2,6-dimethyl-4-(3'-nitrophenyl)-pyridine-3,5-dicarboxylic acid monoisopropyl ester synthesis
- Product Name:1,4-dihydro-2,6-dimethyl-4-(3'-nitrophenyl)-pyridine-3,5-dicarboxylic acid monoisopropyl ester
- CAS Number:116983-17-6
- Molecular formula:C18H20N2O6
- Molecular Weight:360.36
74936-70-2
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Yield:116983-17-6 97%
Reaction Conditions:
with lithium hydroxide monohydrate in ethanol at 20; for 1 h;
Steps:
31
Weigh about 6.05g 14.6mmol compound S85 was dissolved in 50mL of ethanol at room temperature, After about 674mg 16mmol containing the aqueous solution of LiOH, stirred for 1h, the reaction system B Alcohol was removed by rotary evaporation, diluted with water was added, and the reaction solution was adjusted to pH 4-5 with 2mol / L hydrochloric acid, the System precipitated solid was filtered to give compound S865.1g, 97% yield
References:
CN102464608,2016,B Location in patent:Paragraph 0436; 0438
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