Triethylamine → HCID 23503602, compound

Participants

Reaction Steps

4.6 g (6.9 mmol) of triethylamine and 1.8 g of 10% palladium carbon were added to a methanol 280 ml solution of 17.8 g (4.6 mmol) of 4-(2,3,4-trimethoxy-6-methylbenzoyl)-2,3,5-trichloropyridine (compound No. 186), followed by stirring under hydrogen atmosphere at room temperature for 7 hours. The mixture was subjected to filtration, and the solvent was distilled off under reduced pressure. The crude product thus obtained was purified by silica gel column chromatography to obtain 11.6 g (yield 72%) of 4-(2,3,4-trimethoxy-6-methylbenzoyl)-3,5-dichloropyridine (compound No. 191; m.p. 109-111° C.).

Provenance & Evidence