50526-01-7Relevant academic research and scientific papers
N-heterocyclic carbene/Bronsted base cascade catalysis: Base-controlled selective synthesis of multifunctional benzofuran-3-ones or flavone derivatives from the reaction of 3-(2-formylphenoxy)propenoates with imines
Zhao, Yuan,Wang, Zi-Tian,Cheng, Ying
, p. 2580 - 2590 (2014)
The N-heterocyclic carbene/Bronsted base cascade catalysis in the reaction of 3-(2-formylphenoxy)propenoates with N-Boc-arylimines has been studied. Both multifunctional benzofuran-3-ones and benzopyran-4-ones (flavone derivatives) were selectively synthe
An efficient and facile synthesis of functionalized flavones from flavanones
Kondhare, Dasharath,Kasa, Anjaneyulu,Totawar, Balaji,Bhadke, Venkat,Lade, Harshad
, p. 639 - 647 (2019/11/11)
A mild and efficient scheme for the synthesis of 3-substituted functionalized flavones was developed. The reaction of flavanone and glyoxylic acid in ethanol in the presence of the catalytic amount of sulphuric acid at reflux temperature for 2–3?h yielded
3-Substituted Flavones. 1. Reduction of and Conjugate Addititon to (E)-2-Methoxy-3-(carbethoxymethylene)flavones
Smith, Manning A.,Klebanoff, Leonard E.,Morrow, Christopher T.,Sandel, Bonnie B.
, p. 1702 - 1706 (2007/10/02)
The methyl 3-hemiketal of 2-methoxy-3,4-flavandiones 3 react readily with the ylide ethyl (triphenylphosphoranylidene)acetate 12 to form (E)-2-methoxy-3-(carbethoxymethylene)flavanones 4.Compounds 4 are readily reduced by zinc and acetic acid to form the
