A P-Benzyne to M-Benzyne Conversion Through a 1,2-Shift of a Phenyl Group. Completion of the Benzyne Cascade

The reaction of acetic acid 2-selenoxo-2

The reaction of acetic acid 2-selenoxo-2H-pyridin-1-yl esters with benzynes: A convenient route to Benzo[b]seleno[2,3-b]pyridines

✍ U. Narasimha Rao; Ramadas Sathunuru; John. A. Maguire; Ed Biehl 📂 Article 📅 2004 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 288 KB

## Abstract Benzyne and its 3,4,5,6‐tetraphenyl, 3‐ and 4‐methyl, 3‐methoxy and 4,5‐difluoro derivatives react with acetic acid 2‐selenoxo‐2__H__‐pyridin‐1‐yl esters 4a‐e to give benzo[__b__]seleno[2,3‐__b__]pyridines 10–15 in modest yields. The benzynes were generated by one or more of the followi