作者:Hemalatha Venkataraman、Jin K. Cha
DOI:10.1016/s0040-4039(00)99426-7
日期:1989.1
The scope and mechanism of a remarkably facile interconversion between 4,6-dialkoxy-3-alkyl-2-pyrones and their corresponding 5-alkyl isomers is described. The preponderance of the latter over the former is rationalized by the stereoelectronic conformational preference of the C4-alkoxy group.
描述了4,6-二烷氧基-3-烷基-2-吡喃酮与它们相应的5-烷基异构体之间非常容易的相互转化的范围和机理。后者优于前者通过C 4-烷氧基的立体电子构象偏好而合理化。