反应详情

To a mixture of m-naphthoxybenzaldehyde (0.43 g), 3-(4-chlorophenyl)-4-isopropyloxazolidine-2,5-dione (0.5 g), and potassium cyanide (0.23 g) in benzene (about 10 ml), with stirring, is added benzyl triethyl ammonium chloride (about 0.1 g). The reaction mixture is stirred for about 50 hr. The reaction is then worked up by taking up in ether, washing with water and brine, drying over sodium sulfate and evaporating. The concentrate is plated, prep. TLC, eluting with 20% ether/hexane to yield the m-naphthoxy-α-cyanobenzyl ester of N-(4-chlorophenyl)valine, MS m/e 484 (M+).

1. stirringThe reaction mixture is stirred for about 50 hr
2. washwashing with water and brine
3. dry with materialdrying over sodium sulfate
4. customevaporating
5. washTLC, eluting with 20% ether/hexane