c- and t-3-Acetyl-1,c-2-dimethyl-r-1-cyclopentanols and c-3-acetyl-1,t-2-dimethyl-r-1-cyclopentanol are synthesized stereoselectively and dl-plinols A, B, and C are prepared therefrom.
作者:Gino Occhialini、Vignesh Palani、Alison E. Wendlandt
DOI:10.1021/jacs.1c12043
日期:2022.1.12
The positional isomerization of C═C double bonds is a powerful strategy for the interconversion of alkene regioisomers. However, existing methods provide access to thermodynamically more stable isomers from less stable starting materials. Here, we report the discovery of a dual catalyst system that promotes contra-thermodynamic positional alkeneisomerization under photochemical irradiation, providing
Zur kenntnis der ätherischen öle 6. Mitteilung [1] die thermische cyclisation des (−)-(r)-Linalools. Die struktur der Plinole und einiger derivate mit Iridan-Gerüst [2]
作者:H. Stirickler、G. Ohloff、E. Sz. Kováts
DOI:10.1002/hlca.19670500305
日期:1967.4.20
On heating linalool, all the four possible diastereomeric plinols are formed by way of an intramolecular Alder “ene”-synthesis. The knowledge of their absolute configuration, shown to be 2A-2D, allows a discussion of the stereochemical course of this reaction.