2-Vinylpyridine → HCID 19045336, compound

Participants

Reaction Steps

A solution containing 660 mg (2.05 mmol) of 2'-Nitro-spiro(piperidine-4,6'-(6H)thieno[2,3-b]thiopyran)-4'(5'H)-one dihydropyran, 430 mg (4.1 mmol) of 2-vinylpyridine and 557 mg (4.1 mmol) of sodium acetate trihydrate in 10 ml of 1:1 methanol/water was heated at reflux for 4 hours. The reaction was cooled to room temperature and a solid separated. The solid was collected and dissolved in methanol and treated with excess ethanolic HCl. The dihydro chloride separated and was collected and dried over night in vacuo to give 482 mg of the product.

Provenance & Evidence