The Halogen-Lithium Exchange Reaction of 3,3-Dichloro-2-azetidinones: Application to the Synthesis of<b>
<i>cis</i>
</b>-4-Aryl-3-chloro-2-azetidinones
作者:Norbert De Kimpe、Yves Dejaegher、Bram Denolf、Christian V. Stevens
DOI:10.1055/s-2004-831248
日期:——
A straightforward synthesis of new cis-4-aryl-3-chloro-2-azetidinones was developed, using a halogen-lithium exchange reaction on 4-aryl-3,3-dichloro-2-azetidinones. This methodology was further extended to the use of alkyl halides as electrophiles, while more complex electrophiles could not be introduced.
使用 4-aryl-3,3-dichloro-2-azetidinones 上的卤素-锂交换反应,开发了一种直接合成新的 cis-4-aryl-3-chloro-2-azetidinones 的方法。该方法进一步扩展到使用烷基卤化物作为亲电体,而无法引入更复杂的亲电体。