Insertion of N-Tosylacetimidates/Acetimidamides onto Arynes via [2 + 2] Cycloaddition.

@article{Kranthikumar2016InsertionON,
  title={Insertion of N-Tosylacetimidates/Acetimidamides onto Arynes via [2 + 2] Cycloaddition.},
  author={Ramagonolla Kranthikumar and Rambabu Chegondi and Srivari Chandrasekhar},
  journal={The Journal of organic chemistry},
  year={2016},
  volume={81 6},
  pages={2451-9}
}
A novel insertion reaction of N-tosylacetimidates and N-tosylacetimidamides onto arynes via a benzocyclobutene intermediate followed by ring cleavage is developed to afford o-benzylbenzoic acid derivatives in good yields. Interestingly, the use of cyclic 2-sulfonyliminoindolines provided two distinct products such as azepanimines via [2 + 2] cycloaddition… CONTINUE READING