Dimethylformamide → 1-benzyl-5-chloro-2,3,6,7-tetrahydro-1H-azepine-4-carbaldehyde hydrochloride

Participants

Reaction Steps

77 mL phosphoroxychloride was added to 62 mL DMF at 8-18° C. 84 mL dichlormethane was added and 50 g 1-benzyl 4-azepanone hydrochloride. The reaction was stirred over night at RT. The mixture was added to 300 mL ice water and extracted with dichlormethane. The organic layer was evaporated to give 23.3 g of the desired product. (M+H)+=287

Provenance & Evidence