51480-03-6Relevant articles and documents
REACTION OF 1,4-DIAZA-1,3-BUTADIENES WITH CYANOTRIMETHYLSILANE. SYNTHESIS OF 2,3-BIS(ARYLAMINO)PROPENENITRILES AND THEIR CYCLIZATION TO 1,4-DIARYL-2,3-DIOXO-5-PYRAZINECARBONITRILES
Takahashi, Masahiko,Miyahara, Hiroaki,Yoshida, Noriyuki
, p. 155 - 160 (2007/10/02)
Reaction of 1,4-diaza-1,3-butadienes (1) with cyanotrimethylsilane gave 2,3-bis(arylamino)propenenitriles (4), which were cyclized to 1,4-diaryl-2,3-dioxo-5-pyrazinecarbonitriles (5) on treatment with oxalyl chloride.The propenenitriles (4) were oxidized