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Volumn 15, Issue 37, 2009, Pages 9477-9485

New lipophilic 2-Amino-N,N′-dialkyl-4,5-dimethylimidazolium cations: Synthesis, structure, properties, and outstanding thermal stability in alkaline media

Author keywords

Aromatic stabilization; Imidazolium cations; Lipophilicity; Phase transfer catalysis; Steric protection

Indexed keywords

AROMATIC STABILIZATION; IMIDAZOLIUM CATIONS; LIPOPHILICITY; PHASE-TRANSFER CATALYSIS; STERIC PROTECTION;

EID: 70349290834     PISSN: 09476539     EISSN: 15213765     Source Type: Journal    
DOI: 10.1002/chem.200901203     Document Type: Article
Times cited : (56)

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    • The chloride salt is commercially available from Fluka-Chemie AG (Switzerland).
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    • CCDC729001 (8a), 729002 (1a-OTs), and 729003 (1b-I) contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data-request/cif
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    • The insignificance of Hofmann degradation in alkaline cleavage of cations with extended resonance conjugation was noted earlier by Schwesinger et al.[4)
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    • 3 carbons of the isopropyl groups and each C1/C4 centre are relatively short and fall in a narrow range from 3.1 to 4.1 Å.
    • 3 carbons of the isopropyl groups and each C1/C4 centre are relatively short and fall in a narrow range from 3.1 to 4.1 Å.
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    • The dihedral angle ranges from 52.9(2)° to 58.3(2)° for three symmetrically independent cations observed in the crystal structure of Ib-I.
    • The dihedral angle ranges from 52.9(2)° to 58.3(2)° for three symmetrically independent cations observed in the crystal structure of Ib-I.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.