tert.-butyl lithium; (4S)-2,2'-(1-Ethylpropylidene)bislt;4-(1-methylethyl)-4,5-dihydrooxazolegt; in hexane T=-110 - -78°C; Carboxylation; 5 h; Title compound not separated from byproducts;
1: benzyl ethyl ether With Al tri-t-BuO- in benzene T=20°C; Oxidation; 72 h; 2: tert.-butylhydroperoxide With sulfuric acid in diethyl ether; water Hydrolysis; 3: benzyl methyl ether; aluminum isopropoxide With sulfuric acid in diethyl ether; water Etherification; Further byproducts given;
参考文献
Russian Journal of General Chemistry, , vol. 69, # 2 p. 257 - 262
