methanol; titanium tetrachloride in dichloromethane
addition of reagents at -78 deg C, 2 h; reaction at room temperature;
参考文献
Reddy, Chaganti P.; Tanimoto, Shigeo
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1988 , p. 411 - 414
Reddy, Chaganti P.; Tanimoto, Shigeo
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1988 , p. 411 - 414