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A Convenient Method for the Preparation of Secondary Propargylic Ethers. The Reaction of Acetals with 1-Trimethylsilylalkynes Promoted by the Combined Use of Catalytic Amounts of Tin(IV) Chloride and Zinc Chloride
31
Citations
2
References
1987
Year
Chemical EngineeringCross-coupling ReactionEngineeringAlkene MetathesisZinc ChlorideCatalytic AmountsSecondary Propargylic EthersOrganic ChemistryOrganometallic CatalysisCatalysisChemistryAsymmetric CatalysisEnantioselective SynthesisConvenient MethodGood Yields
Abstract In the coexistence of catalytic amounts of SnCl4 and ZnCl2, acetals undergo a coupling with 1-trimethylsilylalkynes in good yields to give secondary propargylic ethers, which are also directly produced from aldehydes by the reaction with alkoxytrimethylsilanes and 1-trimethylsilylalkynes under the same conditions.
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