Participation of substituents at the ortho position of aryl groups in the rearrangements of 5-chloro-3-aryl-2,1-benzisoxazoles

The substituent at the ortho position of the aryl groups of 5-chloro-3-aryl-2,1-benzisoxazoles is responsible for the ability of these structures to undergo rearrangements into acridinones under various conditions.