The author of 《Substituent-Oriented Synthesis of Substituted Pyrazoles/Chromeno[3,2-c]pyrazoles via Sequential Reactions of Chromones/3-Chlorochromones and Tosylhydrazones》 were Dai, Tianzi; Li, Qunyi; Zhang, Xiaofei; Yang, Chunhao. And the article was published in Journal of Organic Chemistry in 2019. Recommanded Product: N,N-Dimethylformamide Dimethyl Acetal The author mentioned the following in the article:
A facile and efficient synthetic strategy for the chemoselective synthesis of monocyclic/tricyclic-fused pyrazoles was developed, and it was oriented by different 3-position substituents (H or Cl) on the chromones. The reaction proceeded in a one-pot sequential way with a broad substrate scope and moderate to excellent yields. In the experimental materials used by the author, we found N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5Recommanded Product: N,N-Dimethylformamide Dimethyl Acetal)
N,N-Dimethylformamide Dimethyl Acetal(cas: 4637-24-5) belongs to anime. Amines characteristically form salts with acids; a hydrogen ion, H+, adds to the nitrogen. With the strong mineral acids (e.g., H2SO4, HNO3, and HCl), the reaction is vigorous. Salt formation is instantly reversed by strong bases such as NaOH. Neutral electrophiles (compounds attracted to regions of negative charge) also react with amines; alkyl halides (R′X) and analogous alkylating agents are important examples of electrophilic reagents.Recommanded Product: N,N-Dimethylformamide Dimethyl Acetal
Referemce:
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