4-Toluenesulfonyl chloride → HCID 19967235, compound

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Reaction Steps

The diol compound prepared in Example K is dissolved in pyridine and treated with p-toluenesulfonyl chloride at -10° C., warmed to room temperature over two hours, diluted with aqueous sodium bicarbonate and extracted into chloroform to afford the title compound in 93% yield. This material is used without further purification. 1HNMR (400 MHz, CDCl3): β=1.26 ppm (m, 2H); 1.45 (s, 9H); 1.80 (m, 2H); 2.47 (s, 6H); 2.59 (m, 2H); 3.10 (d, 2H); 3.39 (dd, 2H); 3.78 (s, 2H); 3.85 (s, 2H); 7.36 (m, 4H); 7.72 (m, 4H).

Provenance & Evidence