Phosphorus oxychloride → 11-Chlorodibenzo(b,f)(1,4)thiazepine

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Reaktionsschritte

A solution of dibenzo[b,f][1,4]thiazepin-11(10H)-one, prepared as described in the previous step, (14.6 g, 64 mmol) in phosphorus oxychloride (20 mL) was heated to reflux for 2 hours. The mixture was concentrated to provide the crude product which was used directly without further purification. ESI-MS (M+1): 246 calc. for C13H8ClNS 245.

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