Diisopropylethylamine → HCID 178479366, compound

Participants

Reaction Conditions

Reaction Steps

Stir a solution of 2,3-dihydro-1H-inden-2-amine hydrochloride (197 g; 1.08 equiv; 1.16 moles), 1H-pyrazole-1-carboximidamide hydrochloride (158 g; 1.00 equiv; 1.08 moles) and diisopropylethylamine (400 g; 2.87 equiv; 3.09 moles; 539.74 mL) in acetonitrile (2 L) at 62° C. for 2 hours, during which time a white solid precipitates. Cool the mixture to 25° C., then filter and wash with 300 mL acetonitrile and 300 mL methyltert-butyl ether. Dry the product in air at 25° C. for 1 h to afford the title compound (200 g, 87%) as a white solid: MS (m/z): 176 (M+1).

Provenance & Evidence