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Asymmetric Epoxidation Of Dihydronaphthalene With A Synthesized Jacobsen's Catalyst
Part 1 of Paper
....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.... Part 2 of Paper
....the
synthetically versatile epoxy function .
In this paper, a synthesis of Jacobsen's catalyst is performed (Scheme
1). The synthesized catalyst is then reacted with an unfunctional alkene
(dihydronaphthalene) to form an epoxide that is highly enantiomerically enriched,
as well as an oxidized byproduct.
Jacobsen's work is important because it presents both a reagent and a
method to selectively guide an enantiomeric catalytic reaction of industrial
and pharmacological importance. Very few .... |
| Number of words: 2135 - Approximate pages: 8 |
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