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Volumn 119, Issue 10, 1997, Pages 2356-2362

Kinetics of C(2α)-proton abstraction from 2-benzylthiazolium salts leading to enamines relevant to catalysis by thiamin-dependent enzymes

Author keywords

[No Author keywords available]

Indexed keywords

CARBOXYLYASE; QUATERNARY AMMONIUM DERIVATIVE;

EID: 0030960601     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja9633528     Document Type: Article
Times cited : (43)

References (65)
  • 25
    • 0001811061 scopus 로고
    • IMACS Transactions on Scientific Computation Stepleman, R. S., Ed.; North-Holland Publishing Go.: Amsterdam, Subroutine lsode (and supporting routines)
    • Hindmarsh, A. C. In Scientific Computing: Applications of Mathematics and Computing to the Physical Sciences; IMACS Transactions on Scientific Computation Vol. 1; Stepleman, R. S., Ed.; North-Holland Publishing Go.: Amsterdam, 1983; pp 55-64; Subroutine lsode (and supporting routines) available at http:/www.netlib.org.
    • (1983) Scientific Computing: Applications of Mathematics and Computing to the Physical Sciences , vol.1 , pp. 55-64
    • Hindmarsh, A.C.1
  • 26
    • 0024498315 scopus 로고
    • Selected examples of this approach to fitting can be found in (a) Zimmerle, C. T.; Frieden, C. Biochem. J. 1989, 258, 381-387 and in (b) Adam, L. C.; Fabian, I.; Susuki, K.; Gordon, G. Inorg. Chem. 1992, 31, 3534-3541.
    • (1989) Biochem. J. , vol.258 , pp. 381-387
    • Zimmerle, C.T.1    Frieden, C.2
  • 27
    • 0000580118 scopus 로고
    • Selected examples of this approach to fitting can be found in (a) Zimmerle, C. T.; Frieden, C. Biochem. J. 1989, 258, 381-387 and in (b) Adam, L. C.; Fabian, I.; Susuki, K.; Gordon, G. Inorg. Chem. 1992, 31, 3534-3541.
    • (1992) Inorg. Chem. , vol.31 , pp. 3534-3541
    • Adam, L.C.1    Fabian, I.2    Susuki, K.3    Gordon, G.4
  • 28
    • 1842290238 scopus 로고    scopus 로고
    • note
    • 17 rate constants were obtained by fitting to the closed-form integrated expression of the rate equations with a time-shift parameter included to account for the fact that some reaction had occurred before the stopped-flow instrument recorded the first time. For all concentrations of hydroxide, least-squares fits gave a time shift of about 0.003 s.
  • 29
    • 1842291990 scopus 로고    scopus 로고
    • note
    • 4) for enamine decomposition is needed to explain the kinetics for 2 but not for 1.
  • 50
    • 1842376133 scopus 로고    scopus 로고
    • note
    • 27 was used, and we used the average value of k′ IH over the range of values obtained at various concentrations of hydroxide.
  • 65
    • 1842296190 scopus 로고    scopus 로고
    • note
    • We cannot identify the peak at 2.4 ppm; it may arise from an impurity in the DCl solution used to acidify the sample, or it may be due to an unknown product formed once the acid is added. The latter possibility is considered unlikely since only a single unknown peak was observed. The remainder of the high-intensity peaks match the peaks seen in panel A.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.