N-alkylsulfonylimines as dipolarophiles in cycloaddition reactions

Chem Asian J. 2013 Jan;8(1):42-8. doi: 10.1002/asia.201200584. Epub 2012 Sep 4.


First described in the late 1960s, N-alkylsulfonylimines are heterocumulenes that participate in reactions with a range of 1,3-dipoles to afford interesting 3-, 4-, 5-, and 6-membered heterocycles. The distribution of adducts obtained suggests that multistage, stepwise mechanistic pathways rather than a concerted process are in operation.

MeSH terms

  • Cycloaddition Reaction*
  • Imines / chemistry*


  • Imines