Michael P. Winters, C. Teleha, Z. Sui
Mar 26, 2014
Citations
0
Influential Citations
16
Citations
Journal
Tetrahedron Letters
Abstract
Abstract Both substituted 2,4,5,6-tetrahydrocyclopenta[c]pyrazoles and 2,4,5,6-tetrahydropyrrolo[3,4-c]pyrazoles have been synthesized by the 3+2 intramolecular dipolar cycloaddition of nitrilimines to alkynes. This cyclization has been extended to more versatile 3-bromo derivatives by the use of alkynylbromides as dipolarophiles.