反应条件
bis(pentamethylene)urea; tributylphosphine; trifluoroacetic acid 1.) THF, CH2Cl2, rt., 12 h; 2.) CH2Cl2; Yield given. Multistep reaction;
参考文献
Dankwardt, Sharon M.; Smith, David B.; Porco Jr., John A.; Nguyen, Cindy H.
Synlett, 1997 , vol. 1997, # 7 p. 854 - 856