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Improved Catalytic Activity of Homochiral Dimeric Cobalt–salen Complex in Hydrolytic Kinetic Resolution of Terminal Racemic Epoxides by Rukhsana I. Kureshy; Surendra Singh; Noor-Ul H. Khan; Sayed H.R. Abdi; Irshad Ahmad; Achyut Bhatt; Raksh V. Jasra is a Chemistry article available to read on EtoBox.
What is Improved Catalytic Activity of Homochiral Dimeric Cobalt–salen Complex in Hydrolytic Kinetic Resolution of Terminal Racemic Epoxides about?
## Abstract Enantiomerically pure epoxides (99%, ee) and diols (98%, ee) from racemic epichlorohydrin, 1,2‐epoxypropane, 1,2‐epoxyhexane, 1,2‐epoxyoctane, and 1,2‐epoxydodecane were obtained in 2–12 h by hydrolytic kinetic resolution (HKR) using the recyclable dimeric homochiral Co(III)–salen complex **1′** (0.2 mol %) derived from 5,5‐(2′,2′‐dimethylpropane)‐di‐[(__R,R__)‐{__N__‐(3‐__tert__‐butylsalicylidine)‐__N__′‐(3′,5′‐di‐__tert__‐butylsalicylidine)}‐1,2‐cyclohexanediamine] with cobalt(II) acetate. Unlike its monomeric version, the catalyst could be recycled several times without loss in performance. The use of BF~4~ as counter ion in HKR reactions was also investigated. © 2005 Wiley‐Liss, Inc. __Chirality 17:590–594, 2005.__
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- Author
- Rukhsana I. Kureshy; Surendra Singh; Noor-Ul H. Khan; Sayed H.R. Abdi; Irshad Ahmad; Achyut Bhatt; Raksh V. Jasra
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0899-0042)
- Published
- 2005
- Language
- EN
- Field
- Chemistry (Physical Sciences)