Detail of "7758-73-8"

CAS Number:
7758-73-8
Name:
2H-1-Benzopyran-2-one,5,7-dihydroxy-4-phenyl-
Molecular Structure:
Formula:
C₁₅H₁₀O₄
Molecular Weight:
254.24
Synonyms:
Coumarin,5,7-dihydroxy-4-phenyl- (6CI,7CI,8CI);5,7-Dihydroxy-4-phenylcoumarin;5,7-Dihydroxy-4-phenyl-2H-1-benzopyran-2-one;
Density:
1.443 g/cm³
Melting Point:
227-233 °C(lit.)
Boiling Point:
535.5 °C at 760 mmHg
Flash Point:
210.5 °C
Hazard Symbols:
Xi
Risk Codes:
36/37/38
Safety:
26-36 Details

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A one-pot synthesis of flavones: A one-pot synthesis of flavones. Fozdar, B. I.; Khan, Suroor A.; Shamsuddin, K. M. (Fac. Sci., Aligarh Muslim Univ., Aligarh 202 001, Israel). Chem. Ind. (London), (17), 586 (English) 1986. CODEN: CHINAG. ISSN: 0009-3068. 120-80-9 and 7758-73-8 which are cas registry numbers of substances are two of reagents here. DOCUMENT TYPE: Journal CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) Flavones I (R1 = R3 = OH, R2 = R4 = H; R2 = OH, R1 = R3 = R4 = H, R3 = OH, R1 = R2 = R4 = H; R4 = OH, R1 = R2 = R3 = H) were prepd. in a one-pot synthesis by the acylation of phenols II with PhCYCCO2H with concomitant cyclization, catalyzed by polyphosphoric acid. .