Methanol → Methyl 2-cyclopentylacetate

Thionyl chloride (7.0 ml) was slowly added to a solution of cyclopentylacetic acid (8.0 ml) in dry methanol (60 ml) and the mixture was stirred at 23° for 20 h. The mixture was concentrated in vacuo; then, the residue was taken up in DCM (100 ml), washed with a 5% sodium bicarbonate solution (50 ml), water (50 ml) and brine (50 ml), dried and concentrated in vacuo to give the title compound (6.47 g) as a yellow oil, which was not purified further. T.l.c. CH-EA (1:1), Rf =0.79. 1H-NMR: 3.70(s); 2.35(s); 2.4-2.15(m); 1.8(m); 1.7-1.5(m); 1.2(m).

1. concentrationThe mixture was concentrated in vacuo
2. washwashed with a 5% sodium bicarbonate solution (50 ml), water (50 ml) and brine (50 ml)
3. customdried
4. concentrationconcentrated in vacuo

ORD record

ord-2eb7ba746cb34bf8a8874e215a7fea5e

Source dataset

uspto-grants-1997_06

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05641775