trifluoroacetic acid in dichloromethane 2 h; Heating; Yield given. Title compound not separated from byproducts;
参考文献
Taylor, Stephen K.; Hockerman, Gregory H.; Karrick, Gregory L.; Lyle, Stephen B.; Schramm, Scott B.
Journal of Organic Chemistry, 1983 , vol. 48, # 15 p. 2449 - 2452
Taylor, Stephen K.; Hockerman, Gregory H.; Karrick, Gregory L.; Lyle, Stephen B.; Schramm, Scott B.
Journal of Organic Chemistry, 1983 , vol. 48, # 15 p. 2449 - 2452