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Oxidation of olefins by palladium(II): Part 17. An asymmetric chlorohydrin synthesis catalyzed by a bimetallic palladium(II) complex by Arab El-Qisairi; Patrick M Henry is a Chemistry article available to read on EtoBox.
What is Oxidation of olefins by palladium(II): Part 17. An asymmetric chlorohydrin synthesis catalyzed by a bimetallic palladium(II) complex about?
Previous studies showed that oxidation of a-olefins with monometallic catalysts containing chiral diphosphines and diamines gave chlorohydrins with poor to good enantioselectivites (28 -82% ee). The present studies demonstrate that bimetallic catalysts containing a b-triketone and bridging chiral diphosphine and diamines are excellent catalysts for this reaction giving enantioselectivites considerably higher than the monometallic catalysts. Enantioselectivities were more than 50% for most olefins tested. The highest optical purities were 94% ee for propene and 93% ee for allylphenyl ether. A useful feature of this asymmetric synthesis is the fact it is a net air oxidation.
Who reads Oxidation of olefins by palladium(II): Part 17. An asymmetric chlorohydrin synthesis catalyzed by a bimetallic palladium(II) complex?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Arab El-Qisairi; Patrick M Henry
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-328X)
- Published
- 2000
- Language
- EN
- Field
- Chemistry (Physical Sciences)