Diazonium salts phenol-esters

Nitro -NO, alkyl (-R) and acyl RCO-) groups can readily be added by electrophilic substitution and can then be converted to amino, carboxylic acid, and alkyl groups, respectively. Once the amino and carboxylic acid groups have been obtained, they can be further converted to a large range of other functional groups like secondary and tertiary amines, amides, diazonium salts, halides, nitriles, esters, phenols, alcohols, and ethers. 

Another important plant protection agent based on 2,4-dichlorophenol is di-clofop-methyl, which is produced via the intermediate nitrofen (from 2,4-dichloro-phenol and p-nitrochlorobenzene) by reduction of the nitro group, diazotization, and hydrolysis of the diazonium salt to yield the phenol with subsequent reaction with 2-chloropropionic acid methyl ester. 

Gatterman reaction ORG CH em 1. Reaction of a phenol or phenol ester, and hydrogen chloride or hydrogen cyanide, i n the presence of a metallic chloride such as aluminum chloride to form, after hydrolysis, an aldehyde. 2. Reaction of an aqueous ethanolic solution of diazonium salts with precipitated copper powder or other reducing agent to form diaryl compounds. gad-3r-man re,ak-sh3n) gaultheria oil See methyl salicylate. g6l thir-e-3, 6il)... 

Phenol-ethers and -esters from diazonium salts... 

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