Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5266043 | Tetrahedron Letters | 2011 | 4 Pages |
Abstract
A rapid and efficient one-pot three-component protocol for the synthesis of 2H-indazolo[2,1-b]phthalazine-1,6,11-triones 4 and 1H-pyrazolo[1,2-b]phthalazine-5,10-diones 6 has been developed by domino coupling of phthalhydrazide, 1,3-diketones, and aldehydes under solvent-free conditions at 80 °C as well as under solvent-free ultrasound irradiation at room temperature promoted by (S)-camphorsulfonic acid.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Gaurav Shukla, Rajiv K. Verma, Girijesh K. Verma, Maya Shankar Singh,