p-Toluenesulfonic acid → HCID 86757047, compound

Participants

Reaction Steps

To a solution of product of example 12, step (f) (4.50 g) in acetone (100 ml), 2,2-dimethoxypropane (12.60 ml) and p-toluenesulphonic acid (2.34 g) were added and the reaction mixture stirred for 1 hour. Purification (SiO2, ethyl acetate:isohexane 2:7 as eluant) afforded the subtitle compound (4.34 g).

Provenance & Evidence