Regioselective enol ester formation results frcm the addition of saturated and unsaturated carboxylic acids to phenylacetylene in the presence of RuC13, RuClj/2PRj 01 R~C~~(PMe~)(arene~ catalysts. Mononuclear ruthenium complexes, such as RuC13 or RuClz(PR3)(arene), have been shown recently to be mor
Synthesis of Alkynes from Enol Esters
β Scribed by Prof. J. Cymerman Craig; Dr. M. D. Bergenthal; Dr. I. Fleming; Dr. J. Harley-Mason
- Publisher
- John Wiley and Sons
- Year
- 1969
- Tongue
- English
- Weight
- 853 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
β¦ Synopsis
Eliminations leading from enol sulfonates, enol phosphates, and enol phosphonium salts to alkynes are reviewed. Olefin eliminations are usually the rate-determining step in the formation of the triple bond. Enol esters may also play a role in the biosynthesis of alkynes.
π SIMILAR VOLUMES
A Simple Route to Acylsilane En01 Esters from En01 Esters skpbeil w. Wright During the course of some recent work on silyl kttene acetals, we sought to prepare the trimetbylsilyl ketene acetal of vinyl 2-etbylbexanoate. To our surprise, the attempted conversion of this compound to the trimethylsilyl
Stereoselective synthesis of chiral spiroacetals starting from enol-ester 1, derived from D-manno lactone, is described. The strategy involves 1,4-addition of a variety of alcohols to 1 in the presence of NBS to give Ξ±bromo acetals, which undergo a regio-and stereoselective radical cyclisation to gi
## Abstract For Abstract see ChemInform Abstract in Full Text.