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Palladium catalysed tetramolecular cascade processes incorporating allene and carbon monoxide

โœ Scribed by Ronald Grigg; Stephen Brown; Visuvanathar Sridharan; Michael D. Uttley

Publisher
Elsevier Science
Year
1997
Tongue
French
Weight
147 KB
Volume
38
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

Chemo-and regio-specific palladium catalysed four component cascade processes, involving formation of 4 new bonds, initiated by oxidative addition of Pd(0) with aryl/heteroaryl iodides followed by sequential incorporation of CO(latin), allene (latin) and an S-or Nnucleophile[PhSO2-or (RNTs)'] occur in good to excellent yield at 50ยฐC.

๐Ÿ“œ SIMILAR VOLUMES

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ChemInform Abstract: Palladium-Catalyzed Tetramolecular Cascade Processes Incorporating Allene and Carbon Monoxide.
โœ R. GRIGG; S. BROWN; V. SRIDHARAN; M. D. UTTLEY ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 30 KB ๐Ÿ‘ 1 views

Palladium-Catalyzed Tetramolecular Cascade Processes Incorporating Allene and Carbon Monoxide. -Aryl iodides (I) readily undergo a chemo-and regio-specific Pd-catalyzed four-component cascade process leading to formation of four new bonds. Initial oxidative addition of Pd(0) with aryl iodides follow

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Hydridopalladium(I1) species generated in situ by oxidative addition of Pd(0) to acetic acid or acidic hydmxyl substrates (phenols, oximes) catalyse the termolecular assembly of allenes, CO and amines (primary, secondary) or oxygen nucleophiles to give methacryhtmides or methaclylate esters and deri