1,2-Dichloroethane → HCID 18616053, compound

Participants

Reaction Steps

1 g of 3-chloro-4-methylbenzothiazol-5-carboxylic acid (4.4 mol) and 0.46 g of 1-methyl-5-hydroxypyrazole (4.7 mol) were dissolved in 50 ml of abs. acetonitrile and admixed with 1 g of EDC, 0.7 ml of triethylamine and a catalytic amount of DMAP. After the reaction had ended, the solution was poured into water and the product was extracted with ethyl acetate. The organic phase was washed and dried and the product was purified by crystallization/column chromatography. Yield: 0.22 g (16%).

Provenance & Evidence