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Chemistry of acetylenic ethers 84: Addition of aldehydes, ketones, esters and amides to 1‐alkynyl ethers under the influence of Lewis acids; direct formation of α,β‐unsaturated esters

1966; Royal Netherlands Chemical Society; Volume: 85; Issue: 9 Linguagem: Inglês

10.1002/recl.19660850911

1878-7096

H. Vieregge, H. M. Schmidt, J. Renema, H. J. T. BOS, J. F. Arens,

Phosphorus compounds and reactions

Abstract A large variety of α,β‐unsaturated esters has been prepared by addition of aldehydes and ketones to 1‐alkynyl ethers under the catalytic influence of boron trifluoride‐ether. With carboxylic esters and dimethylformamide β‐alkoxy‐ and β‐dimethylamino‐substituted acrylic esters are formed. The stereochemistry of the ester formation has been investigated.