RSC Advances p. 82699 - 82703 (2015)
Update date:2022-08-02
Topics:
Patel, Deepak
Kurrey, Ganesh Ram
Shinde, Sandip S.
Kumar, Pradeep
Kim, Geon-Joong
Thakur, Santosh Singh
The activation of inactive Jacobsen's chiral salen Co(ii) (salen = N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamine) compound is attained by dinuclear chiral salen Co(iii)-OTf complex formation with yttrium triflate. The yttrium metal not only displays a promoting effect on electron transfer, but also assists in forming two stereocentres of a Lewis acid complex with Co(iii)-OTf. We found that the binuclear Co-complex significantly enhanced reactivity and enantioselectivity in the hydrolytic kinetic resolution of terminal epoxides compared to its analogous monomer and kinetic data are also consistent with these results.
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