7216-47-9Relevant articles and documents
CONFORMATION AND TAUTOMERIC EQUILIBRIA OF 3-ACYL-3,4-DIHYDROCOUMARINS: A 1H AND 13C NMR STUDY
Simeonov, M. F.,Spassov, S. L.,Bojilova, A.,Ivanov, Chr.,Radeglia, R.
, p. 127 - 134 (1985)
The steric and electronic effects of acyl substitutents COR (R=Me, i-Pr, Ph and t-Bu) upon conformational and keto-enol equilibria in 3-acyl-3,4-dihydrocoumarins have been studied by 1H and 13C NMR spectroscopy.With the increase of effective size of R, pr
Efficient chemoselective reduction of 3-substituted coumarins utilizing ortho-phenylenediamine and benzaldehyde
Risitano, Francesco,Grassi, Giovanni,Foti, Francesco,Bilardo, Cristina
, p. 1311 - 1314 (2007/10/03)
2-Phenylbenzimidazoline, generated in situ from ortho-phenylenediamine and benzaldehyde, is an effective reagent to achieve the chemoselective reduction of the styrenic double bond in 3-substituted coumarins, which takes place in high yield.