N,N,N',N'-tetramethyl-urea in neat (no solvent) T=140°C; 2 h; after azeotropic removal of contaminating water using dichloromethane; Yields of byproduct given. Title compound not separated from byproducts;
参考文献
Nishizawa, Mugio; Kan, Yukiko; Yamada, Hidetoshi
Chemical and Pharmaceutical Bulletin, 1989 , vol. 37, # 2 p. 565 - 567
benzeneseleninic anhydride in tetrahydrofuran 4 h; Ambient temperature;
参考文献
Cussans, Nigel J.; Ley, Steven V.; Barton, Derek H. R.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1980 , p. 1650 - 1653
