Dimethylformamide dimethyl acetal → HCID 21905833, compound

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Reaction Steps

N,N-Dimethylformamide dimethyl acetal (16 ml, 121 mmol) was combined with 1-benzhydryl-3-benzylaminoazetidine-3-carboxylic acid amide (I-2A-1d; 3.03 g, 8.16 mmol) and heated to reflux. After 4 hours, the suspension was cooled and extracted from saturated aqueous NaHCO3 with ethyl acetate. The combined extracts were dried (Na2SO4), and concentrated, in vacuo, to the crude solid (3.50 g). Purification of the residue on a Biotage™ Flash 40M column using 0-3% methanol in methylene chloride as eluant afforded I-3A-5a as a yellowish solid (1.92 g, 62%): +ESI MS (M+1) 382.3; 1H NMR (400 MHz, CD3OD) δ 8.66 (s, 1H), 7.59 (d, J=7.1 Hz, 2H), 7.49-7.11 (m, 13H), 5.12 (s, 2H), 4.44 (s, 1H), 3.31 (d, J=9.6 Hz, 2H), 3.20 (d, J=9.6 Hz, 2H).

Provenance & Evidence