ChemInform Abstract: Stereoselective Syntheses of β,γ-Unsaturated Esters and . gamma.-Lactones: 1-(Benzotriazol-1-yl)-3-(diphenylphosphoryl)-1-ethoxy- 1-propene, a Protected =CCH2CO2Et Synthon Equivalent.
✍ Scribed by A. R. KATRITZKY; D. FENG; H. LANG
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 37 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
1997 carboxylic acid esters carboxylic acid esters (acyclic compounds) P 0360 46 -094 Stereoselective Syntheses of β,γ-Unsaturated Esters and . gamma.-Lactones: 1-(Benzotriazol-1-yl)-3-(diphenylphosphoryl)-1-ethoxy-1-propene, a Protected =CCH2CO2Et Synthon Equivalent. -The stereoselective formation of esters, e.g. (IV), and lactones, e.g. (VIII), is successfully achieved via the Horner products (III) and (VI) , starting from the benzotriazolyl substituted phosphorus compound (I) and aldehydes or ketones. The benzotriazolyl intermediates are transformed by various hydrolysis conditions to either the target esters or lactones. -(KATRITZKY, A. R.;