메뉴 건너뛰기




Volumn 62, Issue 10, 2006, Pages 2350-2356

Brønsted acidity of ceric ammonium nitrate in anhydrous DMF. the role of salt and solvent in sucrose cleavage

Author keywords

Br nsted acidity; Ceric ammonium nitrate; DMF; Sucrose

Indexed keywords

AMMONIUM NITRATE; CERIUM NITRATE; PROTON; SOLVENT; SUCROSE;

EID: 32444438178     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2005.12.001     Document Type: Article
Times cited : (10)

References (28)
  • 15
    • 32444442803 scopus 로고    scopus 로고
    • note
    • + of the solution, measured by titrimetry.
  • 16
    • 32444448993 scopus 로고
    • Chemistry and Metallurgy Comm. of the Dep. of Atomic Energy, Bombay, Book of Abstracts
    • Krishnamurthy, S. S.; Soundararajan, S. 1st Proc. Chem. Symp., Chemistry and Metallurgy Comm. of the Dep. of Atomic Energy, Bombay, 1970; Book of Abstracts, pp 261-264.
    • (1970) 1st Proc. Chem. Symp. , pp. 261-264
    • Krishnamurthy, S.S.1    Soundararajan, S.2
  • 18
    • 32444448769 scopus 로고    scopus 로고
    • note
    • As suggested by a referee, the inclusion of an acid scavenger (potassium carbonate or pyridine) might be expected to attenuate also the Lewis acidity of the Ce(IV), and suppress an eventual Lewis-acid mediated glycolysis pathway; nevertheless the hard character of this Lewis acid means that any reduction in Lewis acidity would be minimal with these additives used.
  • 19
    • 32444433280 scopus 로고    scopus 로고
    • note
    • 7 solution was initially unsuccessful, probably due to the presence of water of crystallization, which was then removed by oven drying the salt sample and adding powdered 4 Å molecular sieves to the NMR tube.
  • 21
    • 32444448412 scopus 로고    scopus 로고
    • note
    • The appearance of a single resonance at 4.70 ppm rather than two signals, as could be expected taking into account the possibility of a slow interconversion of the two rotamers, typical for tertiary amides, might be explained suggesting the presence of a very predominant rotamer. Actually molecular models obtained by MM2 force field calculations suggested the presence of an electrostatic attraction between the carboxylic oxygen and the positive-charged nitrogen of nitrate, for only one rotamer, which should be the predominant one.
  • 28
    • 2542551384 scopus 로고
    • G. Gran Analyst 77 1952 661 671
    • (1952) Analyst , vol.77 , pp. 661-671
    • Gran, G.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.