1,2-BENZENEDIAMINE, 4-IODO-

Uses

It is employed in the synthesis of N-(Benzimidazol-2-ylmethyl)iminodiacetic acids.

Synthesis

Using 4-iodo-2-nitroaniline as starting material, the reduction reaction was carried out by adding 5 equivalents of tin dichloride dihydrate to an ethanol solution and reacting at 75°C for 2 hours. Upon completion of the reaction, 4-iodo-1,2-benzenediamine was obtained in 92% yield and the product was a light red solid.

References

[1] Patent: WO2010/43711, 2010, A1. Location in patent: Page/Page column 56
[2] Journal of Medicinal Chemistry, 2011, vol. 54, # 19, p. 6714 - 6723
[3] Patent: US2012/46307, 2012, A1. Location in patent: Page/Page column 27
[4] Journal of Medicinal Chemistry, 2015, vol. 58, # 18, p. 7241 - 7257
[5] Patent: JP2016/79108, 2016, A. Location in patent: Paragraph 0051