Preparation of 2,4-dichloro-5-hydroxy-phenylhydrazine was written by Liu, Deqiang;Yang, Yanzhao;Lu, Wenjuan. And the article was included in Guangdong Huagong in 2009.Application of 39489-79-7 This article mentions the following:
In the paper, various synthetic routes to obtain 2,4-dichloro-5- hydroxyphenylhydrazine were briefly discussed. 2,4-Dichlorophenol was chosen as starting material, followed by esterification, nitration, hydrolyzation, reduction, diazotization and reduction, and the products were obtained. The products were characterized by m.p. measurement, fourier transform IR(FT-IR) and hydrogen NMR(H1-NMR). The m.p. of the products was identical with the literature, and the structure was also confirmed by FT-IR and H-NMR. Through optimizing the exptl. parameters, the molar yields of the final products could reach as high as 46.6 %. In the experiment, the researchers used many compounds, for example, 5-Amino-2,4-dichlorophenol (cas: 39489-79-7Application of 39489-79-7).
5-Amino-2,4-dichlorophenol (cas: 39489-79-7) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Application of 39489-79-7
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics