Synthesis of substituted 2-(thiophen-2-yl)-1H-imidazol-1-ols
Substituted 2-(thiophen-2-yl)-1 H -imidazol-1-ols were synthesized by cyclization of the corresponding α-thienyl nitrones in alkaline medium. α-Thienyl nitrones were obtained by reaction of N -(1-hydroxyimine-1-R-propan-2-yl)hydroxylamines with thiophene-2-carbaldehyde in methanol. At boiling α-thie...
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Veröffentlicht in: | Russian journal of organic chemistry 2017, Vol.53 (2), p.236-239 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Substituted 2-(thiophen-2-yl)-1
H
-imidazol-1-ols were synthesized by cyclization of the corresponding α-thienyl nitrones in alkaline medium. α-Thienyl nitrones were obtained by reaction of
N
-(1-hydroxyimine-1-R-propan-2-yl)hydroxylamines with thiophene-2-carbaldehyde in methanol. At boiling α-thienyl nitrones in methanol in the presence of sodium methylate 5-aryl(hetaryl)-2-(thiophen-2-yl)-1
H
-imidazol-1-ols are formed chemoselectively. |
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ISSN: | 1070-4280 1608-3393 |
DOI: | 10.1134/S1070428017020166 |