WFRF:(Sun P)
Search: WFRF:(Sun P) > (2005-2009) > Asymmetric epoxidat...
- 21 of 68
- Previous record
- Next record
- To hitlist
Asymmetric epoxidation of styrene and chromenes catalysed by chiral (salen)Mn(III) complexes with a pyrrolidine backbone
- Wang, D. P. (author)
- Wang, M. (author)
- Wang, X. N. (author)
- show more...
- Chen, Y. G. (author)
- Gao, A. P. (author)
- Sun, Licheng C. (author)
- show less...
- Elsevier BV, 2006
- 2006
- English.
- In: Journal of Catalysis. - : Elsevier BV. - 0021-9517 .- 1090-2694. ; 237:2, s. 248-254
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- A series of chiral (pyrrolidine salen)Mn(III) complexes were synthesized front N-aza-substituted (R,R)-N,N'-bis(3,5-di-tert-butylsalicylidene)-3.4-diaminopyrrolidine salen ligands. High yields and comparable enantioselectivity relative to Jacobsen's catalyst were achieved in asymmetric epoxidation of styrene and chromenes using NaClO/PPNO and m-CPBA/NMO as the oxidant systems. Complexes 1-3, featuring a tertiary airline unit, displayed higher activity than complex 4, bearing ail amide unit and Jacobsen's catalyst in the NaClO/PPNO aqueous/organic biphasic system. The influence of CH3I on epoxidation of 6-nitro-2,2-dimethylchromene catalysed by 1-4 in the biphasic medium was Studied to explore the catalysts with built-in phase-transfer capability. The alkenes' access pathway is discussed on the basis of the steric effect of the N-aza-substituent in the pyrrolidine backbone of complexes 1-3 on the enantioselectivity of epoxidation.
Keyword
- asymmetric epoxidation
- enantioselectivity
- pyrrolidine
- (salen)Mn(III) complex
- unfunctionalized alkenes
- active (salen)manganese(iii) complexes
- phase-transfer capability
- enantioselective epoxidation
- nonfunctionalized alkenes
- salen complexes
- olefins
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Journal of Catalysis (Search for host publication in LIBRIS)
To the university's database
- 21 of 68
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Wang, D. P.
- Wang, M.
- Wang, X. N.
- Chen, Y. G.
- Gao, A. P.
- Sun, Licheng C.
- Articles in the publication
- Journal of Catal ...
- By the university
- Royal Institute of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
