ChemicalBook--->CAS DataBase List--->271-70-5

271-70-5

271-70-5 Structure

271-70-5 Structure
IdentificationBack Directory
[Name]

DEAZAPURINE
[CAS]

271-70-5
[Synonyms]

NSC 94210
DEAZAPURINE
7-Deazapurine
7-Deazapurine>
Pyrrolo[2,3-d]pyriMidine
1H-Pyrrolo[2,3-d]pyrimidine
7H-PYRROLO[2,3-D]PYRIMIDINE
3H-Pyrrolo[2,3-d]pyrimidine
1H-Pyrrolo[2,3-d]pyrimidi...
1H-Pyrrolo[2,3-d]pyrimidine (8CI,9CI)
JR-13954, 7H-Pyrrolo[2,3-d]pyrimidine, 96%
[Molecular Formula]

C6H5N3
[MDL Number]

MFCD08234403
[MOL File]

271-70-5.mol
[Molecular Weight]

119.12
Chemical PropertiesBack Directory
[Melting point ]

133℃
[Boiling point ]

297.9±23.0 °C(Predicted)
[density ]

1.38
[storage temp. ]

Inert atmosphere,2-8°C
[solubility ]

Chloroform, Dichloromethane, DMSO, Methanol
[form ]

Powder
[pka]

12.79±0.20(Predicted)
[color ]

Orange
[λmax]

270nm(MeOH)(lit.)
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

22
[WGK Germany ]

3
[HazardClass ]

IRRITANT
[HS Code ]

2933599590
Hazard InformationBack Directory
[Uses]

7H-Pyrrolo[2,3-d]pyrimidine is used as an organic synthesis or pharmaceutical intermediate. Its pyrrolo[2,3-d]pyrimidines are important parent heterocyclic compounds and are synthetic raw materials for the preparation of anti-rheumatoid arthritis and anti-tumour drugs.
[Synthesis]

4-Chloro-7H-pyrrolo[2,3-d]pyrimidine

3680-69-1

7H-Pyrrolo[2,3-d]pyrimidine

271-70-5

4-Chloro-7H-pyrrolo[2,3-d]pyrimidine (compound 1001) (130 mg, 0.847 mmol) was used as a raw material and dissolved in 3 mL of methanol. The hydrogenation reaction was carried out by adding 10% Pd-C catalyst under hydrogen atmosphere at 1 atmosphere for 16 hours. Upon completion of the reaction, the reaction solution was concentrated to dryness to afford 7H-pyrrolo[2,3-d]pyrimidine (Compound 1002) in 100 mg yield and 98% yield. The product was characterized by 1H-NMR (CD3OD): δ 9.4 (s, 1H); 9.1 (s, 1H); 7.9 (s, 1H); 7.1 (s, 1H).

[References]

[1] Patent: WO2007/41130, 2007, A2. Location in patent: Page/Page column 40; Sheet 1/9
[2] Patent: US2008/9514, 2008, A1. Location in patent: Page/Page column 26-27
[3] Bioorganic and Medicinal Chemistry Letters, 2004, vol. 14, # 21, p. 5247 - 5250
[4] European Journal of Medicinal Chemistry, 2008, vol. 43, # 6, p. 1248 - 1260
[5] Patent: WO2012/2568, 2012, A1. Location in patent: Page/Page column 37
Spectrum DetailBack Directory
[Spectrum Detail]

DEAZAPURINE(271-70-5)1HNMR
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