1: With 4 A molecular sieve; titanium(IV) isopropylate; (1R,2R)-N,N'-bis[(1S,4R)-7,7-dimethyl-2-oxo-bicyclo[2.2.1]hept-1-ylcarbonyl]-1,2-diphenylethylenediamine in dichloromethane
T=-78°C;
2: With hydrogenchloride in dichloromethane
6 h; Further stages.;
参考文献
Chang, Chun-Wei; Yang, Chun-Tzu; Hwang, Chyuan-Der; Uang, Biing-Jiun
Chemical Communications, 2002 , # 1 p. 54 - 55
TiCl2(OPri)2; (2R,3R)-TADDOL in toluene
T=-78°C; 20 h; Title compound not separated from byproducts;
参考文献
Minamikawa, Hiroyuki; Hayakawa, Satoshi; Yamada, Tohru; Iwasawa, Nobuharu; Narasaka, Koichi
Bulletin of the Chemical Society of Japan, 1988 , vol. 61, # 12 p. 4379 - 4384