Asymmetric Epoxidation of Dihydronaphthalene with a Synthesized Jacobsen's Catalyst Abstract. 1,2 diaminocyclohexane was reacted with L-(+)-tartaric acid to yield (R,R)-1,2-diaminocyclohexane mono-(+)-tartrate salt. The tartrate salt was then reacted with potassium carbonate and 3,5-di-tert-butylsalicylaldehyde to yield (R,R)-N,N'-Bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamine, which was then reacted with Mn(OAc)2*4H2O and LiCl to form Jacobsen's catalyst. The synthesized Jacobsen's catalyst was used to catalyze the epoxidation of dihydronaphthalene. The products of this reaction were i