Electrochemical Chalcogenation of
<i>β,γ</i>
‐Unsaturated Amides and Oximes to Corresponding Oxazolines and Isoxazolines
作者:Samrat Mallick、Mrinmay Baidya、Kingshuk Mahanty、Debabrata Maiti、Suman De Sarkar
DOI:10.1002/adsc.201901262
日期:2020.3.4
The current report represents a transition‐metal‐freesynthesis of oxazoline and isoxazoline derivatives by a tandem electro‐oxidative chalcogenation‐cyclization process. Both C−Se and C−S bond‐forming protocols were developed without using any external oxidant and the reaction was performed at roomtemperature, open to the air. Using this methodology, 29 substituted oxazoline and 16 substituted isoxazoline
Δ<sup>2</sup>-Isoxazolines from β,γ-unsaturated oximes
作者:Michael D. Mosher、Laura G. Emmerich、Katherine S. Frost、Benjamin Anderson
DOI:10.1002/jhet.5570430303
日期:2006.5
3,5-Disubstituted Δ2-isoxazolines can be prepared using the palladium-mediated nucleometalation / methoxycarbonylation of β,γ-unsaturatedoximes. This novel route to this class of compounds is tolerant of a wide variety of functionality in the starting material, and provides a rapid route to highly functionalized isoxazolines.