1246674-07-6Relevant academic research and scientific papers
PBr3-mediated [5 + 1] annulation of α-alkenoyl-α-carbamoyl ketene-S,S-acetals: access to substituted pyridine-2,6(1H,3H)-diones
Shi, Liping,Zhang, Qian,Gan, Fengjiao,Zhang, Rui,Ding, Yuanli,Liu, Chun,Dong, Dewen
, p. 82743 - 82747 (2015)
A facile and efficient synthesis of substituted pyridine-2,6(1H,3H)-diones via an intramolecular [5 + 1] annulation of readily available α-alkenoyl-α-carbamoyl ketene-S,S-acetals mediated by phosphorus bromide (PBr3) under very mild conditions is described.
A facile and divergent synthesis of substituted pyridine-2,4(1H,3H)-diones and 4H-thiopyran-4-ones from α-alkenoyl-α-carbamoyl ketene-S,S-acetals
Liu, Jinying,Fu, Xiaolan,Zhou, Yang,Zhou, Guangyuan,Liang, Yongjiu,Dong, Dewen
scheme or table, p. 1267 - 1271 (2011/03/20)
A facile and divergent synthesis of substituted pyridine-2,4(1H,3H)-diones and 4H-thiopyran-4-ones from readily available α-alkenoyl-α- carbamoyl ketene-S,S-acetals has been developed. Subjected to N,N-dimethylformamide at 125°C, α-alkenoyl-α-carbamoyl ke
