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Search for "arylhydrazines" in Full Text gives 28 result(s) in Beilstein Journal of Organic Chemistry.

Amines as key building blocks in Pd-assisted multicomponent processes

  • Didier Bouyssi,
  • Nuno Monteiro and
  • Geneviève Balme

Beilstein J. Org. Chem. 2011, 7, 1387–1406, doi:10.3762/bjoc.7.163

Graphical Abstract
  • the two possible regioisomers was obtained preferentially depending on the hydrazine derivatives used, N-alkyl- and N-arylhydrazines giving opposite regioselectivities [15]. The carbonylative coupling of terminal alkynes with aryl (and heteroaryl) halides was proposed by Mori and coworkers as a
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Published 10 Oct 2011

Recent advances in the gold-catalyzed additions to C–C multiple bonds

  • He Huang,
  • Yu Zhou and
  • Hong Liu

Beilstein J. Org. Chem. 2011, 7, 897–936, doi:10.3762/bjoc.7.103

Graphical Abstract
  • formed through a AuPPh3Cl catalyzed cyclization reaction [139]. Using gold complex [XPhosAu(NCCH3)SbF6] as the catalyst, Jurberg and Gagosz prepared the cinnoline derivatives 261 by the hydroarylation of N-propargyl-N-arylhydrazines 260 [140]. With the gold complex [Mes3PAu]NTf2, an alkynyl ether moiety
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Published 04 Jul 2011

Approaches towards the synthesis of 5-aminopyrazoles

  • Ranjana Aggarwal,
  • Vinod Kumar,
  • Rajiv Kumar and
  • Shiv P. Singh

Beilstein J. Org. Chem. 2011, 7, 179–197, doi:10.3762/bjoc.7.25

Graphical Abstract
  • reaction of 2-chloro-2-chlorodifluoro/trifluoromethyl-1-cyano-1-diethoxy phosphorylethylene 108 with arylhydrazines in refluxing carbon tetrachloride results in the rapid replacement of the chlorine atom with the terminal NH2 group of arylhydrazines to give intermediates 109, which is slowly transformed
  • phosphonates (TFMCPs) 111 with arylhydrazines have been studied: TFMCPs 111 can be used as precursors of 2,3-dihydro-1H-pyrazoles 114 modified by both trifluoromethyl and diethoxyphosphoryl groups. Arylhydrazines add rapidly to the alkene double bond of 111 (X = CF3) at room temperature to produce an adduct
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Published 09 Feb 2011
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