反应详情

A mixture of NaN3 (481 mg, 7.4 mmol) and 5-[1-chloro-2,2,2-trifluoro-eth-(Z)-ylideneamino]-4′-methyl-biphenyl-3-carboxylic acid methyl ester (1.3 g, 3.7 mmol) in 10 ml of dry ACN was stirred at room temperature for 16 hours. The reaction mixture were poured into ice-cold aqueous Na2CO3 solution, extracted with ethyl acetate. The organic layer washed with brine, dried over anhydrous Na2SO4, filtered, and concentrated in vacuo. The resulting crude 4′-methyl-5-(5-trifluoromethyl-tetrazol-1-yl)-biphenyl-3-carboxylic acid methyl ester (1.34 g, 99% yield) was used directly in the next step.

1. additionThe reaction mixture were poured into ice-cold aqueous Na2CO3 solution
2. extractionextracted with ethyl acetate
3. washThe organic layer washed with brine
4. dry with materialdried over anhydrous Na2SO4
5. filtrationfiltered
6. concentrationconcentrated in vacuo