Isobutyl acrylate → Isobutyl 3-[4-(diphenylmethylidene)piperidin-1-yl]propanoate

Participants

Reaction Steps

A solution of 20 (0.782 g, 3.14 mmol), isobutyl acrylate (0.56 mL, 3.89 mmol) and ethanol (5 mL) was shaken at 75° C. for 2 h, then evaporated to dryness to give 1.04 g of 11e as a viscous yellow oil that was used without further purification. The structure was confirmed by 1H NMR. (Propanoate esters 11b, 11c, and 11f were similarly prepared (see synthesis of cyclopentyl acrylate in the Scheme 6).

Provenance & Evidence