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1-(4-Bromobenzyl)-1-(4-methoxyphenyl)hydrazine synthesis

2synthesis methods
-

Yield:-

Reaction Conditions:

with triethylamine in toluene at 100; for 3 h;

Steps:

3a.2

A solution of 4-methoxyphenylhydrazine hydrochloride ( 100g), 4-bromobenzylbromide ( 150g) and triethylamine (167mL) in toluene (1.6L) was heated to 100°C for 3 hours. The solution was cooled and 800mL diethyl ether was added to produce a precipiate, which was removed by filtration. The filtrate was concentrated, and the residue was dissolved in EtOAc (IL). A saturated solution of HCl in EtOAc was added, and the precipitate was collected by filtration and dried in vacuo to give a cream solid (167g).CO3Et

References:

WO2008/67566,2008,A1 Location in patent:Page/Page column 95-96

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