Patent ID: 11970433
Assignee: KING FAISAL UNIVERSITY
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A method of making a 2,2′-dimethyl-4,4′-diiodoazobenzene compound, the method comprising:
suspending 4-iodo-2-methylaniline in a mixture of HCl and water to obtain a suspension;
diazotizing the amine group of the 4-iodo-2-methylaniline by slowly adding a solution of NaNO2 in water to the suspension to obtain a mixture;
stirring the mixture to obtain a stirred mixture;
transferring the stirred mixture into a solution of CuSO4·5H2O, NH4OH, NH2OH, and NaOH in water to obtain a reaction mixture;
heating the reaction mixture to obtain a heated reaction mixture;
cooling and acidifying the heated reaction mixture to obtain an acidified mixture;
obtaining a crude residue;
extracting organic layers of the crude reside; and
purifying the organic layers to obtain the 2,2′-dimethyl-4,4′-diiodoazobenzene compound having the formula:,