反应详情

To a stirred solution of 19.6 g (0.2 mole) of phosgene in benzene (100 ml of 2 molar solution) under nitrogen gas was added dropwise 61.1 g (0.2 mole) of 1-benzyl-3-(3-chloro-4-fluorophenoxy)pyrrolidine in 100 ml of dry benzene. The mixture was stirred for about 21/2 days. The mixture was filtered to remove 8 g of starting compound as the hydrochloride salt and the filtrate was concentrated under reduced pressure. The resulting oil was triturated in succession with three 100 ml portions of 30/60 petroleum ether. The oil residue was again subjected to reduced pressure to remove petroleum ether. The oil residue, 46 g contained 5-10% benzyl chloride. The combined ether washes yielded 4 g of crystalline product on standing. Yield of product was 50 g (93%)., m.p. 63°-65° C.

1. filtrationThe mixture was filtered
2. customto remove 8 g of starting compound as the hydrochloride salt
3. concentrationthe filtrate was concentrated under reduced pressure
4. customThe resulting oil was triturated in succession with three 100 ml portions of 30/60 petroleum ether
5. customto remove petroleum ether