HRID377695
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
Reaction of 4-(4-fluorophenyl)-3-[4-(methylsulfonyl)phenyl]-5-(trifluoromethyl)-1H-pyrazole (Example 1, Step 3) (0.1 g) with 0.08 g of potassium carbonate and 2.0 g of allyl bromide in 5 mL of DMF gave a crude mixture of 1-allyl-4-(4-fluorophenyl)-5-[4-(methylsulfonyl)phenyl]-3-(trifluoromethyl)pyrazole and 1-allyl-4-(4-fluorophenyl)-3-[4-(methylsulfonyl)phenyl]-5-5 (trifluoromethyl)-1H-pyrazole. HPLC purification with 50% ethyl acetate-hexane and recrystallization from ether-hexane gave 1-allyl-4-(4-fluorophenyl)-3-[4-(methylsulfonyl)phenyl]-5-(trifluoromethyl)-1H-pyrazole (45 mg, 41%): mp 115.5-119° C.
WORKUP
后处理
- customgave a crude
- customHPLC purification
- customwith 50% ethyl acetate-hexane and recrystallization from ether-hexane