Expanding available pyrazole substitution patterns by sydnone cycloaddition reactions
نویسندگان
چکیده
منابع مشابه
Theoretical studies on cycloaddition reactions
Cycloaddition reactions represent one of the most powerful processes in organic chemistry. The most common types of cycloaddition reactions are the Diels-Alder (DA) and the 1,3-dipolar cycloaddition reactions (1,3-DCs) which lead to five and six membered rings, respectively. In our ongoing efforts to contribute to the understanding of DA and 1,3-DCs; we studied the following using the B3LYP/6-3...
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Cycloaddition reactions between 1,3-butadiene and the C-terminated SiC(1 0 0)-c(2 · 2) surface have been addressed using quantum-chemical methods. The c(2 · 2) structure consists of ACBCA bridges between underlayer Si atoms which themselves form SiASi bonds. Of various possible reaction products, the one formed by a [2+ 4] reaction with the ACBCA bridge (giving a species resembling 1,4-cyclohex...
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The 1,3-Dipolar cycloaddition reactions are the classic reaction in modern synthetic organic chemistry. The concept of these reactions was introduced by Huisgen and his co-workers in the early 1960’s. 1,3-Dipolar cycloaddition reactions are simple but powerful tool for the construction of five membered heterocycles such as isoxazoles, isoxazolines, pyrazoles, pyrazolones, 1,2,4-oxadiazolines et...
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ژورنال
عنوان ژورنال: Tetrahedron
سال: 2017
ISSN: 0040-4020
DOI: 10.1016/j.tet.2017.04.049