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Volumn 2, Issue 3, 2011, Pages 429-438

The bigger, the better: Ring-size effects of macrocyclic oligomeric Co(III)-salen catalysts

Author keywords

[No Author keywords available]

Indexed keywords

ACTIVE CATALYST; ALLYL GLYCIDYL ETHERS; BIMETALLIC COMPLEXES; CATALYST LOADINGS; CATALYST SYNTHESIS; CATALYTIC ACTIVITY; CATALYTIC EFFICIENCIES; CATALYTIC TESTS; COMPUTATIONAL MODELING; CYCLOOCTENE; EPOXIDE RING-OPENING REACTION; HEXAMERS; HYDROLYTIC KINETIC RESOLUTION; MACROCYCLICS; NMR STUDIES; OLEFIN METATHESIS; PURIFICATION PROTOCOL; RING OPENING; RING SIZES; SALEN COMPLEX; SIZE EFFECTS; TERMINAL EPOXIDE; TETRAMERS;

EID: 79955605425     PISSN: 20416520     EISSN: 20416539     Source Type: Journal    
DOI: 10.1039/c0sc00517g     Document Type: Article
Times cited : (34)

References (49)
  • 34
    • 79955596733 scopus 로고    scopus 로고
    • Note
    • Interconversion between cis- and trans-isomers of cyclic monoene or diene have been thoroughly studied via Variable Temperature NMR. The conversion temperatures range from room temperature to over 200 °C depending on the ring size, structure and modification. With the same ring size, the interconversion of cyclic diene is much easier than the corresponding cyclic monoene due to the lower racemization energy barrier.
  • 35
    • 4243813641 scopus 로고
    • and for the cyclic monoene and cyclic diene comparison see
    • H. Gunther and G. Jikeli, Chem. Rev., 1977, 77, 599-637 and for the cyclic monoene and cyclic diene comparison see:
    • (1977) Chem. Rev , vol.77 , pp. 599-637
    • Gunther, H.1    Jikeli, G.2
  • 44
    • 79955629156 scopus 로고    scopus 로고
    • Note
    • The distance between two Co centers for a possible reaction has not been determined experimentally or theoretically. Here, 10 Å was chosen because it is approximately the separation of the catalyst sites due to the acetate counter ion commonly used in these catalyst systems. A sensitivity analysis of this separation distance showed that this distance was also reasonably sensitive to the occurrence of potential reaction events as a function of macrocyclic octane geometries.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.