ChemInform Abstract: An Efficient, Ligand-Free, Heterogeneous Supported Copper Hydroxide Catalyst for the Synthesis of N,N-Bicyclic Pyrazolidinone Derivatives.
β Scribed by Kazuaki Yoshimura; Takamichi Oishi; Kazuya Yamaguchi; Noritaka Mizuno
- Publisher
- John Wiley and Sons
- Year
- 2011
- Weight
- 30 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
Abstract
Cycloaddition of a variety of azomethine imines with electronβdeficient terminal alkynes proceeds smoothly in the presence of a heterogeneous Cu(OH)~x~βAl~2~O~3~ catalyst to give bicyclic pyrazolidinone derivatives in high yields.
π SIMILAR VOLUMES
## Abstract Poly(4βvinylpyridine)βsupported sulfuric acid is shown to be an efficient catalyst for the synthesis of coumarin derivatives under solventβfree conditions.
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