[ON A MODE OF DIFFERENTIATION OF 4,5AND 4,7-DIHYDROXYCOUMARINS IN MIXTURES OBTAINED DURING THERMAL CONDENSATIONS OF POLYPHENOLS WITH MALONIC ESTERS].
D003374:Coumarins; D004952:Esters; D005419:Flavonoids; D006358:Hot Temperature; D008314:Malonates; D010636:Phenols; D059808:Polyphenols; D012106:Research; D012118:Resorcinols; D013057:Spectrum Analysis; D014466:Ultraviolet Rays
D003374:Coumarins; D004952:Esters; D005419:Flavonoids; D008314:Malonates; D010636:Phenols; D059808:Polyphenols; D012118:Resorcinols; C031389:resorcinol
BIOFLAVONOIDS; COUMARINS; EXPERIMENTAL LAB STUDY; HEAT; MALONATES; PHENOLS; RESORCINOL; SPECTRUM ANALYSIS; ULTRAVIOLET RAYS