反应详情

A solution of 2.50 g of N-(2'-cyanobiphenyl-4-ylmethyl)-N-propyl-amine, 2.98 g of isophthalic acid monomethyl ester monochloride and 2.10 ml of triethylamine in 100 ml of CH2Cl2 is stirred at room temperature for 1 hour. Extraction twice with 50 ml of water each time and customary treatment of the organic phase yields a crude product that, after chromatography on silica gel 60 (40-63 μm) using CH2Cl2 as eluant, yields N-(2'-cyanobiphenyl-4-ylmethyl)-N-propyl-isophthalic acid monoamide that has an Rf value of 0.61 [CH2Cl2 /CH3OH (4:1)].

1. extractionExtraction twice with 50 ml of water each time and customary treatment of the organic phase
2. customyields a crude product that