Benzonitrile → HCID 71680410, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-amino-3-bromopyridine (2.00 g, 11.2 mmol), copper (I) bromide (240 mg, 1.64 mmol), 1,10-phenanthroline monohydrate (336 mg, 1.68 mmol) and benzonitrile (25 mL) was heated in a 50-mL 3-necked flask to 130° C. During 4 d a gentle flow of (O2/N2 5:95) was bubbled through the reaction mixture (>99% conversion, HPLC method see below). The dark brown suspension was then cooled to 0-5° C. and filtered. The filter cake was washed with TBME (10 mL) and dried to yield crude 8-bromo-2-phenyl-[1,2,4]triazolo[1,5-a]pyridine (1.85 g, 60%) as a light brown solid with 97.5% purity (HPLC area-%, HPLC method see below).

Provenance & Evidence