Detail of "4966-90-9"

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CAS Number:
4966-90-9
Name:
2(1H)-Pyridinone,4-hydroxy-6-methyl-3-nitro-
Molecular Structure:
Formula:
C₆H₆N₂O₄
Molecular Weight:
170.12
Synonyms:
2,4-Pyridinediol,6-methyl-3-nitro- (7CI,8CI);3-Nitro-6-methylpyridine-2,4-diol;4-Hydroxy-6-methyl-3-nitro-2(1H)-pyridinone;4-Hydroxy-6-methyl-3-nitro-2-pyridone;6-Methyl-3-nitropyridine-2,4-diol;
Density:
1.53 g/cm³
Melting Point:
293-296 °C(lit.)
Boiling Point:
265.6 °C at 760 mmHg
Flash Point:
114.4 °C
Appearance:
Yellow powder
Hazard Symbols:
Xi
Risk Codes:
36/37/38
Safety:
26-36 Details

Display：

6-methyl-3-nitropyridine-2,4-diol

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A palladium-catalyzed urea arylation route to a CRF1 receptor antagonist: All Rights Reserved. A palladium-catalyzed urea arylation route to a CRF1 receptor antagonist. Popkin, Matthew E.; Bellingham, Richard K.; Hayes, Jerome F.Several reagents with their cas registry numbers 4966-90-9 and 917951-45-2 are used here. ( Chemical Development, GlaxoSmithKline, Tonbridge, Kent TN11 9AN, UK). Synlett, (17), 2716-2718 (English) 2006 Georg Thieme Verlag. CODEN: SYNLES. ISSN: 0936-5214. DOCUMENT TYPE: Journal CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Section cross-reference(s): 1 A new synthetic approach to a potent CRF antagonist, GW808990 (NB135583, I), is reported. The route hinges on the palladium-catalyzed intramol. arylation of a urea with 2-chloropyridine. Spontaneous piperazine ring closure means that a high-yielding bisannulation reaction is the final step. .