Tert-Butyl isocyanide → HCID 74763781, compound

Participants

Reaction Steps

5-(trifluoromethyl)pyridin-2-amine (200 mg, 1.23 mmol, Eq: 1.00), 3-formylbenzonitrile (170 mg, 1.3 mmol, Eq: 1.05) and p-toluenesulfonic acid monohydrate (70.4 mg, 370 μmol, Eq: 0.3) were dissolved in MeOH (2.00 mL) and the intensive yellow solution was stirred for 20 min. To this yellow solution was added dropwise 2-isocyano-2-methylpropane (103 mg, 140 μL, 1.23 mmol, Eq: 1.00) and the corresponding yellow solution was stirred for 1 h whereupon a white precipitate was formed. The precipitate was filtered off, washed with MeOH (4 mL) and dried under vacuum to give the product as an off-white solid (120 mg, 27.1%). MS: 359.2 [M+H]+; 1H-NMR (D6-DMSO): δ 8.91 (s, 1H), 8.64 (s, 1H), 8.54 (d, 1H), 7.81 (d, 1H), 7.74 (d, 1H), 7.68 (t, 1H), 7.48 (dd, 1H), 5.03 (s, 1H), 1.03 (s, 9H).

Provenance & Evidence