Publication | Closed Access
An Efficient Preparation and the Intramolecular Cyclopropanation of a-Diazo-3-Ketophosphonates and a-Diazophosphonoacetates
71
Citations
5
References
1984
Year
Improved MethodEngineeringRe-fluxing CyclohexaneOrganic ChemistryChemistryChemical EngineeringNovel OrganocatalystsEfficient PreparationOrganometallic CatalysisStereoselective SynthesisCyclopropanation ReactionBiochemistryDiversity-oriented SynthesisCatalysisPharmacologyEnantioselective SynthesisHeterocyclicAlkene MetathesisNatural SciencesIntramolecular Cyclopropanation
Abstract An improved method for the preparation of the title compounds is presented. Several catalysts have been studied for the cyclopropanation reaction; the best results (n = 40-76 %) have been obtained with copper powder in re-fluxing cyclohexane.
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