Synthesis of indoles via alkylidenation of acyl hydrazides
Hisler, K. and Commeureuc, A.G.J. and Zhou, S.Z. and Murphy, J.A., EPSRC (Funder), WestCHEM (Funder) (2009) Synthesis of indoles via alkylidenation of acyl hydrazides. Tetrahedron Letters, 50 (26). pp. 3290-3293. ISSN 0040-4039 (https://doi.org/10.1016/j.tetlet.2009.02.060)
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Abstract
Indoles have been synthesised via alkylidenation of acyl phenylhydrazides using phosphoranes and the Petasis reagent, followed by in situ thermal rearrangement of the product enehydrazines. The Petasis reagent provides an essentially neutral equivalent of the [acid-catalysed] Fischer indole synthesis, but with acyl phenylhydrazides as starting substrates. Alkylidene triphenylphosphoranes convert aroyl phenylhydrazides to indoles, but acyl phenylhydrazides derived from aliphatic carboxylic acids undergo a Brunner reaction to form indolin-2-ones.
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Item type: Article ID code: 19092 Dates: DateEvent1 July 2009PublishedSubjects: Science > Chemistry Department: Faculty of Science > Pure and Applied Chemistry Depositing user: Strathprints Administrator Date deposited: 15 Jun 2010 09:19 Last modified: 11 Nov 2024 09:26 URI: https://strathprints.strath.ac.uk/id/eprint/19092