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Volumn 64, Issue 7, 1999, Pages 2202-2210

Chemical and spectroscopic studies related to the Lewis acidity of lithium perchlorate in diethyl ether

Author keywords

[No Author keywords available]

Indexed keywords

CROTONALDEHYDE; ETHER; LITHIUM DERIVATIVE; LITHIUM PERCHLORATE; UNCLASSIFIED DRUG;

EID: 0033515688     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo981042x     Document Type: Article
Times cited : (28)

References (72)
  • 17
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    • Reference 11, p 193
    • Reference 11, p 193.
  • 29
    • 0345539751 scopus 로고    scopus 로고
    • note
    • - to be the solvent and ether the solute.
  • 32
    • 0344245937 scopus 로고    scopus 로고
    • note
    • e′ which are not relevant to the present discussion.
  • 33
    • 0345539752 scopus 로고    scopus 로고
    • note
    • If the uncatalyzed Diels-Alder reaction competes with the catalyzed reaction, an unusual situation but one that occurs here when CP is the diene (this is addressed later in the paper), the rate expression will contain an additional term. This does not occur, even in LP/DE, when less reactive dienes are used.
  • 34
    • 0344677425 scopus 로고    scopus 로고
    • note
    • 2 because one is measuring the rate for the reaction of the complex with the diene.
  • 38
    • 0344677423 scopus 로고    scopus 로고
    • note
    • The optical rotations of camphene also remained constant in DE containing 0-2M LP.
  • 40
    • 0344245936 scopus 로고    scopus 로고
    • note
    • + complex.
  • 41
    • 0344677422 scopus 로고    scopus 로고
    • note
    • The results were essentially the same for all three line shapes.
  • 42
    • 0344245934 scopus 로고    scopus 로고
    • note
    • Nakanishi, K. Infrared Absorption Spectroscopy; Holden-Day: San Francisco, 1964.
  • 46
    • 0344245933 scopus 로고    scopus 로고
    • note
    • eq values and the error limits are not appreciably different.
  • 47
    • 0344677420 scopus 로고    scopus 로고
    • 0 concentrations used here, the calculated equilibrium constant comes out about an order of magnitude larger
    • 0 concentrations used here, the calculated equilibrium constant comes out about an order of magnitude larger.
  • 48
    • 0344677419 scopus 로고    scopus 로고
    • note
    • 23] is constant and, thus, can be ignored in the equilibrium expression.
  • 52
    • 0345108299 scopus 로고    scopus 로고
    • Unpublished results based on data taken from ref 11
    • (a) Pagni, R. M. Unpublished results based on data taken from ref 11.
    • Pagni, R.M.1
  • 53
    • 0345108298 scopus 로고    scopus 로고
    • max + 2771 (r = 0.943)
    • max + 2771 (r = 0.943).
  • 54
    • 0344245930 scopus 로고    scopus 로고
    • 2O, both of which can donate two H bonds, in the analysis, the correlation is not quite as good (r = 0.907)
    • 2O, both of which can donate two H bonds, in the analysis, the correlation is not quite as good (r = 0.907).
  • 55
    • 0345539750 scopus 로고    scopus 로고
    • note
    • Our model assumes (1) that the A and A·LP carbonyl bands do not change wavelengths and (2) that the spectrum in 1 M LP/DE largely is due to the complex.
  • 56
    • 0344677417 scopus 로고    scopus 로고
    • note
    • +.
  • 57
    • 0029739416 scopus 로고    scopus 로고
    • Complexation of Lewis acids to nitriles in solution, solid state, and crystal results in an adduct having a C≡N mode at higher energy due to shortening of the C-N bond length: Beattie, I. R.; Jones, P. J. Angew. Chem., Int. Ed. Engl. 1996, 35, 1527. Jiao, H. Schleyer, P. v. R. J Am. Chem. Soc. 1994, 116, 7429.
    • (1996) Angew. Chem., Int. Ed. Engl. , vol.35 , pp. 1527
    • Beattie, I.R.1    Jones, P.J.2
  • 58
    • 0345671640 scopus 로고
    • Complexation of Lewis acids to nitriles in solution, solid state, and crystal results in an adduct having a C≡N mode at higher energy due to shortening of the C-N bond length: Beattie, I. R.; Jones, P. J. Angew. Chem., Int. Ed. Engl. 1996, 35, 1527. Jiao, H. Schleyer, P. v. R. J Am. Chem. Soc. 1994, 116, 7429.
    • (1994) J Am. Chem. Soc. , vol.116 , pp. 7429
    • Jiao, H.1    Schleyer, P.V.R.2
  • 59
    • 0345539747 scopus 로고    scopus 로고
    • note
    • -1 on going from DE to 1.50 M LP in DE.
  • 60
    • 0345108297 scopus 로고    scopus 로고
    • eq values
    • eq values.
  • 68
    • 0345539745 scopus 로고    scopus 로고
    • Unpublished results
    • Pagni, R. M. Unpublished results.
    • Pagni, R.M.1
  • 71
    • 0345539744 scopus 로고    scopus 로고
    • The catalytic rate acceleration is ∼140
    • The catalytic rate acceleration is ∼140.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.