## Abstract The hitherto unreported, highly functionalized 1__H__โpyrazoleโ3โcarboxylates **3** have been synthesized in good yields __via__ a oneโpot threeโcomponent domino reaction of phenylhydrazines, dialkyl acetylenedicarboxylates, and ninhydrin under mild conditions for the first time. No coโ
โฆ LIBER โฆ
Synthesis of 4-(1,3-dioxo-2,3-dihydro-1H-2-indenyl) substituted 1-benzylpyrrole-3-carboxylates via a tandem four-component reaction
โ Scribed by Alizadeh, Abdolali; Mokhtari, Javad
- Book ID
- 118045804
- Publisher
- Elsevier Science
- Year
- 2013
- Tongue
- English
- Weight
- 232 KB
- Volume
- 16
- Category
- Article
- ISSN
- 1631-0748
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## Abstract The reactive 1โ:โ1 zwitterionic intermediate formed by the addition of isocyanides to dialkyl acetylenedicarboxylates was trapped with 4โarylurazoles to produce the highly functionalized pyrazolo[1,2โ__a__][1,2,4]triazoles **5** in good yields (__Table__). The structures of the products