This review presents a survey of literature reports dealing with both site and peri-selectivities in cycloaddition reactions of
nitrilimines with multifunctionalized dipolarophiles. The literature results covered in this review, during the period from 1970 to mid
2013, demonstrate that chemo-selectivity plays an important role in synthetic design.
Keywords: Chemoselectivity, heterocycles, hydrazonoyl halides, nitrilimines.
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