## Abstract In the reaction of oximes I with ethoxyethyne II at 75β90Β° orthoesterlike products III are formed. Some aldoximes, however, are dehydrated to nitriles. The results are summarized in Table I.
Chemistry of acetylenic ethers XXXIX: Reactions of acetylenic ethers with carbonyl compounds in aqueous solution
β Scribed by H. Vieregge; J. F. Arens
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 393 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0165-0513
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β¦ Synopsis
Abstract
Acetylenic ethers V react with aldehydes in aqueous medium at room temperature to yield the hydroxy esters VII and IX, often together with a small amount of the unsaturated ester VIII. The acetylenic ethers do not react in such a way with ketones and aromatic aldehydes but a similar reaction occurs with ethyl mesoxalate.
π SIMILAR VOLUMES
## Abstract The Ξ±,Ξ²βunsaturated thiolesters listed in Table I have been prepared by treating a mixture of a carbonyl compound and boron trifluoride with an acetylenic thioether (see reaction scheme 2). Good yields are obtained when ethers are used as solvents. The configuration of the esters prepar
## Abstract Acetylenic compounds RC β‘ CH can be converted into acetylenic thioethers by treatment of the sodium or lithium alkynide with diethyl disulphide in liquid ammonia. This constitutes the easiest route to 1βethylthioβ1βalkynes I. Other compounds with βacidicβ CH~3~, CH~2~ or CH groups can