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Chemistry 02/2012; 18(6):1599-603. · 5.93 Impact Factor
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Chemistry 11/2011; 17(48):13415-9. · 5.93 Impact Factor
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Chemistry 10/2010; 16(39):11836-9. · 5.93 Impact Factor
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ABSTRACT: The reactivity and catalytic performance of 2-ethylpyrido[1,2-c][1,2,4]-triazol-3-ylidene 6 have been comprehensively investigated. The carbene 6 has shown unusual properties owing to the effect of the pyrido-annulation. While formohydrazide 8 and hydrazine 9 are obtained via the destruction of the triazole skeleton of the carbene, 3-((1Z,3E)-4-(1H-pyrrol-1-yl)buta-1,3-dienyl)-1-ethyl-1H-1,2,4-triazole 10 is achieved through the cleavage of the C-N bond of the pyridine ring. The carbene has turned out to be a powerful catalyst in a variety of organocatalyzed and Pd(II)-catalyzed transformations.
Organic & Biomolecular Chemistry 10/2009; 7(20):4241-7. · 3.70 Impact Factor
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ABSTRACT: The title compound, C(17)H(16)N(3)O(+)·PF(6) (-), is a chiral bicyclic 1,2,4-triazolium salt. In the crystal packing, C-H⋯O and C-H⋯F hydrogen bonds and P-F⋯π contacts [4.078 (11)-4.163 (11) Å, involving the triazolium ring] play an important role in enhancing the stability of the crystal structure.
Acta Crystallographica Section E Structure Reports Online 01/2008; 64(Pt 8):o1602. · 0.35 Impact Factor