Benzenesulfonyl cyanide → 2-Benzenesulfonyl-5-chloropyridine

참여 물질

반응 조건

반응 단계

Toluene (60 ml) was heated to 100° C. Thereto was added dropwise a solution of 39.6 g of 2-chloro-1,3-butadienyl acetate and 30.0 g of benzenesulfonyl cyanide (purity:82%) in 60 ml of toluene over 30 minutes. The reaction mixture was stirred at 100° C. for 7 hours and then concentrated under reduced pressure. The crystals obtained were washed with 150 ml of toluene which was cooled to 0° C. and dried under reduced pressure using a vacuum pump to give 31.9 g of 2-benzenesulfonyl-5-chloropyridine (yield 86%).

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