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Volumn 51, Issue 6, 2010, Pages 974-976

Synthesis of tetrasubstituted pyrazines and pyrazine N-oxides

Author keywords

[No Author keywords available]

Indexed keywords

2 CHLORO 3 METHYLPYRAZINE; PYRAZINE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 73249137827     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2009.12.053     Document Type: Article
Times cited : (5)

References (30)
  • 1
    • 33750059386 scopus 로고    scopus 로고
    • For reviews on this topic:
    • For reviews on this topic:. Sato N. Compr. Heterocycl. Chem. II 6 (1996) 233-278
    • (1996) Compr. Heterocycl. Chem. II , vol.6 , pp. 233-278
    • Sato, N.1
  • 2
    • 33745715546 scopus 로고    scopus 로고
    • and references therein.
    • Sato N. Sci. Synth. 16 (2004) 751-844 and references therein.
    • (2004) Sci. Synth. , vol.16 , pp. 751-844
    • Sato, N.1
  • 18
    • 84986531979 scopus 로고
    • The synthesis of 2-chloro-3-methylpyrazine 1 could be applied to the preparation of additional 2-chloro-3-alkylpyrazines:
    • The synthesis of 2-chloro-3-methylpyrazine 1 could be applied to the preparation of additional 2-chloro-3-alkylpyrazines:. Ohta A., Watanabe T., Akita Y., Yoshida M., Toda S., Akamatsu T., Ohno H., and Suzuki A. J. Heterocyclic. Chem. 19 (1982) 1061-1067
    • (1982) J. Heterocyclic. Chem. , vol.19 , pp. 1061-1067
    • Ohta, A.1    Watanabe, T.2    Akita, Y.3    Yoshida, M.4    Toda, S.5    Akamatsu, T.6    Ohno, H.7    Suzuki, A.8
  • 19
    • 0010203165 scopus 로고
    • The regioselectivity of the oxidation of 2-chloropyrazine was determined by the relative basicity of nitrogens in the ring:
    • The regioselectivity of the oxidation of 2-chloropyrazine was determined by the relative basicity of nitrogens in the ring:. Mixan C.E., and Pews R.G. J. Org. Chem. 42 (1977) 1869-1871
    • (1977) J. Org. Chem. , vol.42 , pp. 1869-1871
    • Mixan, C.E.1    Pews, R.G.2
  • 22
    • 73249124097 scopus 로고    scopus 로고
    • note
    • f = 0.20 (eluent: 20% EtOAc in hexane).
  • 23
    • 73249125561 scopus 로고    scopus 로고
    • note
    • 1H NMR and LC-MS.
  • 25
    • 73249114181 scopus 로고    scopus 로고
    • note
    • f = 0.27 (eluent: 10% EtOAc in hexane).
  • 26
    • 73249118197 scopus 로고    scopus 로고
    • note
    • The starting material 7a (19%) and other further oxidized product such as dioxide (14%) and trioxide (19%) were detected by LC-MS. Yields are based on LC-MS. Dioxide and trioxide were not isolated for full characterization.
  • 29
    • 73249137682 scopus 로고    scopus 로고
    • note
    • f = 0.23 (eluent: 30% EtOAc in hexane).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.