Tert-butyl 1-cyanocyclobutane-1-carboxylate → Tert-butyl 1-(aminomethyl)cyclobutane-1-carboxylate

Participants

Reaction Steps

A suspension of Raney Ni (0.6 g, 13.19 mmol) in MeOH (30 ml) in a hydrogenation steel pressure vessel was treated with 1-cyano-cyclobutanecarboxylic acid tert-butyl ester (2.39 g, 13.19 mmol). The reaction mixture was placed under an atmosphere of hydrogen (3 bar) overnight. The mixture was filtered and concentrated in vacuo. The residue was dissolved in MeOH and passed through a 20 g Isolute® SCX-2 cartridge. The cartridge was washed with MeOH followed by product 7M ammonia in MeOH. The ammonia washings were concentrated in vacuo to afford the title product which was used without further purification. 1H NMR (400 MHz, CDCl3) δ 2.45 (2H, m), 2.01-1.67 (6H, m), 0.49 (9H, s).

Provenance & Evidence