反应详情

温度

110 °C

Step-1: To the stirred solution of 2-chloroacetamidoxime (1.0 g, 9.2 mmol, prepared as per the procedure given in PCT/US02/22897) in toluene (15 ml) was added nicotinyl chloride (1.37 g, 9.67 mmol) and heated at 110° C. for 4 hr. The reaction mixture was diluted with ethyl acetate (50 ml) and washed with aqueous saturated sodium bicarbonate solution (2×25). Organic layer was evaporated under vacuum to yield the crude product. The crude product was purified using silica gel column chromatography (15% Acetone-Hexane) to give 2-(3-chloromethyl-[1,2,4]-oxadiazole-5-yl)-pyridine in 55% (0.550 g) yield. MS: m/z: 196.7 (M+1).

1. washwashed with aqueous saturated sodium bicarbonate solution (2×25)
2. customOrganic layer was evaporated under vacuum
3. customto yield the crude product
4. customThe crude product was purified