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4-Cyano-1-hydroxypent-4-yl Dithiobenzoate (2f). A solution of di(thiobenzoyl) disulfide (0.73 g, 2.4 mmol) and 4,4¡®-azobis(4-cyano-1-pentanol)39 (0.50 g, 2 mmol) in ethyl acetate
(10 mL) was prepared.The mixture was degassed and heated to 70 ¡ãC in a sealed vessel for 24 h. The volatiles were removed under reduced pressure and the residue chromatographed on
silica with ethyl acetate/petroleum spirits/acetonitrile (6:14: 1) as eluent to give the title compound (2f) (0.49 g, 46%). 1H NMR, ä 1.90 (3H, CH3), 2.10 (2H, CH2CH2CH2OH), 2.30 (2H,
CH2CH2 CH2OH), 3.75 (2H, CH2CH2CH2OH), 7.40, 7.50, 7.90 (m, 5H, ArH).
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wxuelong: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú 2015-05-29 14:59:26
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