反应详情

A mixture of 25 g (0.1 mole) of ethyl 3-(N-benzylamino)-3-methylbutyrate hydrochloride and approximately 2 g of 10% Pd-C in 250 ml of dried USP alcohol was hydrogenated under 55 psi H2 for four days. The reaction medium was then filtered and evaporated under reduced pressure to provide 18 g (100%) of an amber oil which gradually crystallized upon standing: mp 82°-83° C.; NMR (CD3OD) δ1.2 (t, J=7, Hz, 3, --CH2CH3) 1.5 (s, 6, two --CH3), 2.8 (s, 2, --CH2 --), 4.2 (q, J=7 Hz, 2, --CH2CH3). Analysis Calculated for C7H16NO2Cl: C, 46.28; H, 8.88; N, 7.71. Found: C, 46.46; H, 8.98; N, 7.90.

1. filtrationThe reaction medium was then filtered
2. customevaporated under reduced pressure