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Volumn 43, Issue 51, 2002, Pages 9287-9290

Efficient synthesis of substituted 2-aminopyrazines: FeCl3-promoted condensation of hydroxyiminoketones with aminoacetonitriles

Author keywords

[No Author keywords available]

Indexed keywords

AMINOACETONITRILE; KETONE DERIVATIVE; PYRAZINE DERIVATIVE;

EID: 0037121568     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(02)02375-4     Document Type: Article
Times cited : (14)

References (41)
  • 8
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    • and references cited therein
    • Zhang C.Y., Tour J.M. J. Am. Chem. Soc. 121:1999;8783-8790. and references cited therein.
    • (1999) J. Am. Chem. Soc. , vol.121 , pp. 8783-8790
    • Zhang, C.Y.1    Tour, J.M.2
  • 26
    • 0036482179 scopus 로고    scopus 로고
    • 4. From a process chemistry perspective, our condition is more practical due to ease of handling and an environmentally friendly waste stream.
    • (2002) Chem. Pharm. Bull. , vol.50 , pp. 301-302
    • Kakoi, H.1
  • 31
    • 0011400361 scopus 로고    scopus 로고
    • 3 were tested: results were not distinguishable with the one from the reaction without any additive.
    • 3 were tested: results were not distinguishable with the one from the reaction without any additive.
  • 32
    • 0011501724 scopus 로고    scopus 로고
    • Fe(III) citrate was less effective.
    • Fe(III) citrate was less effective.
  • 33
    • 0011449634 scopus 로고    scopus 로고
    • 3 was used with water since the hydrate was a stony solid and difficult to handle.
    • 3 was used with water since the hydrate was a stony solid and difficult to handle.
  • 34
    • 0011450136 scopus 로고    scopus 로고
    • note
    • 13C NMR (125 MHz, DMSO, ppm) δ 20.0, 131.4, 139.6, 140.7, 154.4, 176.5.
  • 35
    • 0011453590 scopus 로고    scopus 로고
    • It is comparatively difficult to isolate pure pyrazine N-oxides. As hydrogenation of the N-oxide normally proceeds very cleanly to give the desired pyrazines in high yield (>90%), yields given in Table 1 should reflect to yields for N-oxides.
    • It is comparatively difficult to isolate pure pyrazine N-oxides. As hydrogenation of the N-oxide normally proceeds very cleanly to give the desired pyrazines in high yield (>90%), yields given in Table 1 should reflect to yields for N-oxides.
  • 41
    • 0011405203 scopus 로고    scopus 로고
    • 2 did not lead to the corresponding pyrazine 6a while with Fe powder did work, giving 6a.
    • 2 did not lead to the corresponding pyrazine 6a while with Fe powder did work, giving 6a.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.