76281-02-2Relevant academic research and scientific papers
6-Amino-5-cyano-1H,4H-pyrazolo[3,4-b]pyrans
Sharanina,Promonenkov,Marshtupa,Pashchenko,Puzanova,Sharanin,Klyuev,Gusev,Gnatusina
, p. 607 - 611 (2007/10/02)
The reaction of 3-methyl-1-phenyl-5-pyrazolene with arylideneamino nitriles in alcohol leads to the formation of 3-methyl-4(1-aryl-2,2-dicyanoethyl)-5-pyrazolones, which are readily cyclized in the presence of bases to the corresponding 6-amino-5-cyano-3-
CYCLIZATION REACTIONS OF NITRILES. REACTION OF ARYLIDENEMALONONITRILES WITH 1,3-DICARBONYL COMPOUNDS
Sharanin, Yu. A.,Promonenkov, V. K.,Sharanina, L. G.
, p. 544 - 548 (2007/10/02)
The reaction of 1,3-dicarbonyl compounds with arylidene derivatives of malononitrile and ethyl cyanoacetate leads to the formation of substituted 2-amino-4H-pyrans.In the case of 1,1,1-trifluoro-3-(2-thenoyl)acetone acid cleavage of the Michael adduct occurs, and this leads to 2-aryl-3-(2-thenoyl)-1,1-dicyanopropanes. 1,3-Indanedione reacts by exchange of the methylene components and gives the corresponding 2-arylidene-1,3-indanediones.
