Ethyl 2-(diphenylmethyleneamino)acetate → HCID 86683231, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (2S)-4-methyloct-7-en-2-yl 4-methylbenzenesulfonate (54 g, 0.182 moles) and N-(diphenylmethylene)glycinate ethyl ester (48.7 g, 0.182 moles) in toluene (500 mL) was added LiHMDS (36.5 g, 0.218 moles, 1 M solution in THF) at 0° C. The reaction mass was allowed to come to room temperature and was then heated at 110° C. for 2 h. The reaction mass was cooled to room temperature, quenched with water and extracted with ethyl acetate (200 mL×3). The combined organic layers were dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to get crude compound (3R)-ethyl 2-((diphenylmethylene)amino)-3,5-dimethylnon-8-enoate (75 g). The crude compound was taken to the next step without further purification.

Provenance & Evidence