2-[1-biphenyl-4-yl-meth-(Z)-ylidene]-succinic acid 4-tert-butyl ester 1-methyl ester → 2-Biphenyl-4-ylmethyl-succinic acid 4-tert-butyl ester 1-methyl ester

Beteiligte Stoffe

Reaktionsschritte

A solution of 2-[1-biphenyl-4-yl-meth-(Z)-ylidene]-succinic acid 4-tert-butyl ester 1-methyl ester (410 mg, 1.163 mmol) in ethyl acetate (20 mL) is hydrogenated over Pt/C (40 mg) at 1 atm for 18 hours. The catalyst is filtered through Celite and the solvent is removed under reduced pressure to give 2-biphenyl-4-ylmethyl-succinic acid 4-tert-butyl ester 1-methyl ester. The enantiomers are separated by chiral HPLC.

Herkunft & Nachweise