Detail of "842-74-0"

CAS Number:
842-74-0
Name:
5(4H)-Oxazolone,2-phenyl-4-(phenylmethylene)-
Molecular Structure:
Formula:
C₁₆H₁₁NO₂
Molecular Weight:
249.264
Synonyms:
2-Oxazolin-5-one,4-benzylidene-2-phenyl- (6CI,7CI,8CI);5(4H)-Oxazolone, 4-benzylidene-2-phenyl-(4CI);2-Phenyl-4-(phenylmethylene)-5(4H)-Oxazolone;2-Phenyl-4-benzylidene-5(4H)-oxazolone;2-Phenyl-4-benzylidene-5-oxazolone;4-Benzylidene-2-phenyl-2-oxazolin-5-one;4-Benzylidene-2-phenyl-4H-oxazol-5-one;4-Benzylidene-2-phenyl-5(4H)-oxazolone;4-Benzylidene-2-phenyl-5-oxazolone;NSC 291;NSC 3334;
Density:
1.16 g/cm³
Boiling Point:
386.5 °C at 760 mmHg
Flash Point:
175.6 °C

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Synthesis of some new 6-bromo-2-methyl-3-(p-substituted aminophenyl)-4(3H)-quinazolinones: Synthesis of some new 6-bromo-2-methyl-3-(p-substituted aminophenyl)-4(3H)-quinazolinones. ElNnaggar, Galal M.; El-Sherief, H. A. H.; Aref, H.; Abdelhamid, K. (Fac. Sci.Several reagents with their cas registry numbers 842-74-0 and 123-11-5 are used here., Assiut Univ., Assiut, Egypt). Pharmazie, 38(12), 821-2 (English) 1983. CODEN: PHARAT. ISSN: 0031-7144. DOCUMENT TYPE: Journal CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) The quinazolinone I (R = NH)2 was prepd. by treating 6-bromo-2-methyl-3,1-benzoxazin-4-one with p-(H2N)2C6H4. Treatment of I (R = NH2) with R1CHO (R1 = Ph, substituted Ph, 2-furyl, 2-thienyl) gave I (R = N:CHR1). Reaction of I (R = NH2) with ClCH2COCl gave I (R = NHCOCH2Cl) which was aminated to give I (R = NHCOCH2R2, R2 = amino). I (R = NHSO2C6H4R3-4, R3 = H, Me, Br) were also prepd. from I (R = NH2). Imidazolinones II (R4 = H, 2-OMe, 4-OMe, 4-Cl, 4-NO2) were obtained by aminolysis of oxazolinones with I (R = NH2). .

Electronic structure and spectral-luminescent properties of some substituted azlactones: Electronic structure and spectral-luminescent properties of some substituted azlactones. Krasovitskii, B. M. 842-74-0 is the cas registry number. This chemical is also mentioned in this article.; Lysova, I. V.; Afanasiadi, L. Sh.; Lyubarskaya, A. E.; Stryukov, M. B.; Gol'dberg, M. L.; Krikov, V. V. (USSR). Zh. Prikl. Spektrosk., 41(6), 916-21 (Russian) 1984. CODEN: ZPSBAX. ISSN: 0514-7506. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) The absorption and fluorescence spectra of azlactones (I; R, R1 = Ph, 4-O2NC6H4, 4-MeOC6H4, 4-Me2NC6H4, 4-biphenylyl, 1-naphthyl) were examd. Transition to the 1st excited singlet state was accompanied by a redistribution of electron d. from the oxazole ring to the ethylene moiety. As the solvent polarity was increased, the fluorescence spectrum underwent a larger bathochromic shift than the absorption spectrum.In this experiment, several chemicals are used like 842-74-0 The dipole moments of I (R = R1 = Ph) in the ground and 1st excited singlet state were 5.5 and 10 D, resp. ..