期刊
TETRAHEDRON LETTERS
卷 53, 期 14, 页码 1728-1731出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2012.01.095
关键词
Multicomponent reaction; Dodecylphosphonic acid (DPA); Solvent-free conditions; Recyclability; 2H-Indazolo[2,1-b]phthalazine-triones
资金
- University Grants Commission (UGC)
- CSIR, New Delhi, India
A new green protocol has been developed for the synthesis of 2H-indazolo[2,1-b]phthalazine-triones via one-pot, three-component condensation reaction of aromatic aldehydes with 1,3-dicarbonyl compounds and phthalhydrazide using reusable dodecylphosphonic acid (DPA) as heterogeneous solid acid catalyst under solvent-free conditions. This protocol provides a novel and improved method for obtaining 2H-indazolo[2,1-b]phthalazine-triones in terms of good yields with little catalyst loading. (C) 2012 Elsevier Ltd. All rights reserved.
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