Hydrochloric Acid → HCID 67902673, compound

Participants

Reaction Steps

Gr 1.6 (moles 0.01) of 2-(1-dimethylaminoethyl) piperidine and gr2.25 (moles 0.011) of 3,4-dichlorophenylacetic acid, dissolved in 20 ml. of CH2Cl2 were added with gr.3.1 (moles 0.015) of dicyclohexylcarbodiimide dissolved in 20 ml. of CH2Cl2. After 48 hours standing, the reaction mixture was worked up as in Ex. No 1 C) giving 2.8 g. of oily mixture of diastereoisomers. This was chromatographed on g.60 of silicagel, eluting with CH2Cl2 containing increasing amounts of methanol (0.2% to 1%). The fast moving diastereoisomer A was so obtained. It was dissolved in acetone and transformed into the hydrochloride by acidifying with HCl dissolved in ether. The precipitate was crystallized from acetone.

Provenance & Evidence