67579-81-1

Trans-(1R,2R)N,N'-Dimethyl-cyclohexane-1,2-diamine is a useful research chemical for organic synthesis and other chemical processes. 

Cyclohexene oxide (1) was reacted with 25–30% aqueous methylamine (1.5 equiv.) in a sealed reactor to form trans-2-(methylamino)cyclohexanol 2 at 80 °C within 5h. Compound 2 was subjected to Mitsunobu reaction at room temperature, followed by adjusting the pH from 2 to 10 to yield 7-methyl-7-azabicyclo[4.1.0]-heptane 3, which was directly subjected to the following reaction without purification. Ring-opening reactions of compound 3 with a methylamine aqueous solution were completed in a sealed reactor at 110 °C after 6h to yield Trans-(1R,2R)N,N'-Dimethyl-cyclohexane-1,2-diamine.