4-Toluenesulfonyl chloride → Cyclopentylmethyl 4-methylbenzene-1-sulfonate

Participants

Reaction Steps

This compound was synthesized as a colorless oil from cyclopentylmethanol (235.0 mg, 2.35 mmol), TsCl (581.5 mg, 3.05 mmol), Et3N (473.2 mg, 4.70 mmol), and DMAP (287.1 mg, 2.35 mmol) in 95% yield by following general procedure 1.1: 1H NMR (400 MHz, CDCl3, δH) 7.77 (d, J=8.2 Hz, 2H), 7.33 (d, J=8.4 Hz, 2H), 3.88 (d, J=7.1 Hz, 2H), 2.44 (s, 3H), 2.18 (dt, J=15.0, 7.5 Hz, 1H), 1.80-1.62 (m, 2H), 1.62-1.41 (m, 4H), 1.25-1.09 (m, 2H); 13C NMR (100 MHz, CDCl3, δC) 144.83, 133.40, 130.02, 128.07, 74.51, 38.79, 29.19, 25.45, 21.86. ESI-MS: 255.1 (M+H+), 277.1 (M+Na+).

Provenance & Evidence