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- W4384155952 abstract "Abstract New protocol designed for the synthesis of novel pyrazole-4-carbothioamide by the reaction of pyrazole-4-carbonitrile using thioacetamide in the presence of Amberlyst-15 as a catalyst in ethanol. Various methods are adopted for the synthesis of 3-Aryl-1-phenyl-1 H -pyrazole-4-carbothioamides such as Amberlyst-15 method, Citric acid method, BF 3 -Etherate method and Dowex DR-2030 method. But Amberlyst-15 method offered highly pure product with excellent yield. Here, thioacetamide employed as sulfur source and avoid use of hazardous Lawesson’s Reagent, Na 2 S, H 2 S gas. Novel Pyrazole-4-Carbothioamides are synthesized and characterized by using 1 H NMR, 13 C NMR and Mass spectral techniques. It’s a rapid, single step and clean synthetic protocol for the synthesis of Pyrazole-4-carbonitriles with excellent yield (97-99%)." @default.
- W4384155952 created "2023-07-14" @default.
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- W4384155952 date "2023-07-14" @default.
- W4384155952 modified "2023-09-25" @default.
- W4384155952 title "A Novel Approach To The Transformation of Pyrazole-4-Carbonitriles to Novel 3-Aryl-1-Phenyl-1H-Pyrazole-4-Carbothioamide Using Thioacetamide as a Sulfur Source" @default.
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- W4384155952 doi "https://doi.org/10.21203/rs.3.rs-3156442/v1" @default.
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