| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5216435 | Tetrahedron | 2014 | 5 Pages |
Abstract
We developed an efficient and simple one-pot synthesis of functionalized multi-substituted 2,4-dihydro-pyrano[2,3-c]pyrazole dicarboxylates from β-ketoesters, hydrazine, dimethyl acetylenedicarboxylate and malononitrile in EtOH. This four-component one-pot reaction carried out in the presence of DABCO catalyst showed advantages over a one-pot three-component method in its simple procedure, high yield and low toxicity.
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Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
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