29640-10-6Relevant academic research and scientific papers
Condensation of some ketones with methylene active nitriles in varied stoichiometries
Fondjo, Emmanuel Sopbue,Doepp, Dietrich
, p. 1037 - 1044 (2006)
Condensations of some ketones, such as cyclopentanone, cyclohexanone, indan-1,3-dione, 2-acetyl-1-naphthol, 1-acetyl-2-naphthol, with some active methylene compounds, such as malononitrile and cyanoacetate, in the presence of amine bases, diethylamine or triethylamine, were studied. The structures of the Knoevenagel condensation products were determined by pectral analyses.
An efficient one-pot synthesis of coumarins mediated by propylphosphonic anhydride (T3P) via the Perkin condensation
Augustine, John Kallikat,Bombrun, Agnes,Ramappa, Balakrishna,Boodappa, Chandrakantha
experimental part, p. 4422 - 4425 (2012/09/25)
An efficient one-pot synthesis of coumarins mediated by T3P, a mild and low toxic peptide coupling agent, via the Perkin condensation has been demonstrated.
A novel synthesis of dibenzo[c,f]chromenes, dibenzo[c,h]chromenes and benzo[7,8]chromeno[3,4-f]isoindoles as antimicrobial agents
El-Gaby, Mohamed S.A.,Zahran, Medhat A.,Ismail, Magda M.F.,Ammar, Yousry A.
, p. 227 - 232 (2007/10/03)
Naphtho[2,1-b]pyranone (3) was allowed to react with arylmethylenemalononitriles to yield 4-amino-5-oxo-2-aryl-5H-dibenzo[c,f]chromene-3-carbonitriles (4a,b); with ethyl 3,4-dichlorobenzylidene cyanoacetate to furnish dibenzo[c,f]chromene (5) and with ele
On the Condensation of 2,2-Difluoro-4-methyl-benzo[d]-1,3,2-dioxaborines with Cyano Acetic Acid Derivatives. Formation and Transformation of 3-Cyano-4-methyl-benzo [b]pyran-2-ones and their 2-Imine Precursors
Boutome,Hartmann
, p. 71 - 78 (2007/10/03)
By condensation of 2,2-difluoro-4-methyl-benzo[d]-1,3,2-2H-dioxaborines(12) with cyano acetic acid derivatives in presence of weak bases, 3-cyano-4-methyl-benzo[b]pyran-2-ones (13) or their 3-cyano-4-methyl-benzo[b]pyran-2-imine precursors (14) are available in satisfactory yields.
