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- Almeida, MLS, et al.
(författare)
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Ruthenium(II)-catalyzed Oppenauer-type oxidation of secondary alcohols
- 1996
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Ingår i: CHEMISTRY-A EUROPEAN JOURNAL. - : WILEY-V C H VERLAG GMBH. ; 2:12
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Highly efficient ruthenium-catalyzed Oppenauer-type oxidations of secondary alcohols to ketones have been developed. The catalytic system consists of [(PPh(3))(3)RuCl2] (1) and K2CO3 or [(C(4)Ph(4)COHOCC(4)Ph(4))(mu-H)(CO)(4)Ru-2] (2) in refluxing aceton
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- Backvall, JE
(författare)
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Enantiocontrol in some palladium- and copper-catalyzed reactions
- 1996
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Ingår i: ACTA CHEMICA SCANDINAVICA. - : MUNKSGAARD INT PUBL LTD. ; 50:8
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- This review discusses enantiocontrol in some palladium- and copper-catalyzed reactions and the general theme involves the use of products from palladium-catalyzed 1,4-oxidation of conjugated dienes. In the first part the use of 1,4-diacetoxy-2-alkenes in
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7. |
- Backvall, JE, et al.
(författare)
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Palladium-catalyzed 1,2-oxidation of allenes
- 1997
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Ingår i: TETRAHEDRON LETTERS. - : PERGAMON-ELSEVIER SCIENCE LTD. ; 38:2
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Palladium-catalyzed oxidation of allenes with palladium acetate as the catalyst and p-benzoquinone as the oxidant in the presence of lithium bromide afforded 1,2-dibromides in a regioselective reaction. The reaction proceeds via a (pi-allyl)palladium int
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9. |
- Backvall, JE
(författare)
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Recent developments in palladium-catalyzed oxidations
- 1996
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Ingår i: PURE AND APPLIED CHEMISTRY. - : BLACKWELL SCIENCE LTD. ; 68:3
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- The palladium-catalyzed intramolecular 1,4-oxidation of conjugated dienes has been extended to carbon-carbon bond formation. Two different methods were developed. In the first method, a vinylpalladium intermediate is generated in the side chain which add
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10. |
- BACKVALL, JE, et al.
(författare)
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STEREOCHEMISTRY AND MECHANISM OF CHLOROPALLADATION OF ACETYLENES
- 1995
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Ingår i: ORGANOMETALLICS. - : AMER CHEMICAL SOC. ; 14:9
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- The stereochemistry of chloropalladation of acetylenes has been studied. Chloropalladation adducts from terminal acetylenes were trapped in situ by reaction with either allyl chloride or 1,3-cyclohexadiene. It was found that the stereochemistry of the ch
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