Halogenations of Aryl Substituted Sydnones

Abstract

<p>Recently, a novel avenue to the iodination of sydnones at the 4-position has been developed using N-iodosuccinimide in acetic acid (cf. 1 to 2). The scope of this concept will be enumerated using various activated and deactivated arylsydnones, and extended by means of other halogenating reagents, such as N- chlorosuccinimide and N-bromosuccinimide.</p>