Hydrazine hydrate (1:1) → HCID 86761311, compound

Participants

Reaction Steps

A solution of (XI) (0.7 g, 1.9 mmol) in methanol (10 ml) was treated with hydrazine hydrate (1.9 g, 38 mmol). The resulting solution was heated to a gentle reflux for 16 h., cooled and concentrated in vacuo. The residue was partitioned between DCM and water and the organic layer was collected, washed with water and dried over MgSO4. Concentration in vacuo yielded (XII) (0.7 g, 99%) as a thick cloudy white oil; δH (CDCl3, 200 MHz) 3.47 (m, 2H, N(H)CH2CH2), 3.61 (m, 2H, OCH2CH2), 4.43, 4.52 (s, 2H, ArCH2O), 5.49 (s, 2H, NNH2), 6.55 (m, 1H, CH2NHC(O)), 6.99 (m, 1H, 4″-H), 7.22 (m, 7H, 3-, 3′-, 3″-, 4′-, 5-, 5′-, 5″-H), 7.46 (m, 6H, 2-, 2′-, 2″-, 6-, 6′-, 6″-H), 7.80 (m, 1H, ArNHC(O)) ppm; υmax 3435 (N—Hstr), 1734 ((R(H)N)2C═Ostr) cm−1; m/z 389 [M+H]+ (15%), 447 [M+MeCN+NH4]+ (100%); found 389.1973, C23H25N4O2 requires 389.1978.

Provenance & Evidence