反应条件
sodium hydride
1.) ether, reflux, 15 min, 2.) dimethylethylideneurea (DMEU), 70 deg C, 30 min; Yield given. Multistep reaction;
参考文献
Lee, W. K.; Heiney, P. A.; McCauley, J. P.; Smith, A. B.
Molecular Crystals and Liquid Crystals (1969-1991), 1991 , vol. 198, p. 273 - 284
