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Substituted pyridyl...
Substituted pyridylamide ligands in microwave-accelerated Mo(0)-catalysed allylic alkylations
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Belda, O. (författare)
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- Moberg, Christina (författare)
- KTH,Kemi
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(creator_code:org_t)
- 2002
- 2002
- Engelska.
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Ingår i: Synthesis (Stuttgart). - 0039-7881 .- 1437-210X. ; :11, s. 1601-1606
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- Novel 4- and 6-substituted bis-pyridylamides were prepared by microwave accelerated nucleophilic substitution of the 4-and 6-halo substituted derivatives of the parent ligand la. The ligands were used in the asymmetric allylation of cinnamyl carbonate catalysed by Mo(0) in which the 4-chloro- and 4-pyrrolidyl substituted ligand derivatives exhibited high regioselectivity (74:1 and 88:1. respectively) and enantioselectivity (96% ee), whereas 6-substituted ligands afforded no product under the same conditions. Other allylic substrates were used to explore the generality of the procedure.
Nyckelord
- molybdenum
- allylations
- asymmetric catalysis
- pyridylamides
- microwaves
- molybdenum-catalyzed alkylations
- fast chemistry
- complexes
- example
- esters
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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