Triethylamine → HCID 18930607, compound

Participants

Reaction Steps

A solution of the compound 3a (1.341 g, 4 mmol) prepared in Preparation 3 in tetrahydrofuran (10 ml) is added under ice cooling to a solution of m-bromoisocyanate which is prepared according to the method described in EP-508796-A1 from a solution of m-cyanoaniline (581 mg, 4.92 mmol), triphosgene (551 mg, 1.72 mmol) and triethylamine (960 μl, 6.9 mmol) in tetrahydrofuran (50 ml). In addition, triethylamine (558 μl, 4 mmol) is added and treated as in a manner similar to that described in Preparation 5 to prepare the compound 6w (1.4 g, yield 88%).

Provenance & Evidence