Thermal, three-carbon + two-atom cycloaddition of cyclopropenone ketals with carbon-heteroatom double bonds: Butenolide, furan, and γ-keto ester preparation.
作者:Dale L. Boger、Christine E. Brotherton、Gunda I. Georg
DOI:10.1016/s0040-4039(01)91394-2
日期:1984.1
A preliminary study of the thermal reaction of cyclopropenone ketals with carbon-heteroatom double bonds is detailed. The reaction with aldehyde and keto carbonyls provide butenolide ortho esters, the product of a formal three-carbon + two-atom cycloaddition of the cyclopropenone ketal across the carbon-oxygen double bond.
详细介绍了具有碳-杂原子双键的环丙烯酮缩酮的热反应的初步研究。与醛和酮羰基的反应可生成丁烯醇内酯原酸酯,这是环丙烯酮缩酮通过碳-氧双键的形式,是正式的三碳+两原子环加成的产物。