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Volumn 119, Issue 12, 1997, Pages 2784-2794

Studies on the mechanism of ribonucleotide reductases

Author keywords

[No Author keywords available]

Indexed keywords

RIBONUCLEOTIDE REDUCTASE;

EID: 0030891240     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja962974q     Document Type: Article
Times cited : (101)

References (102)
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    • note
    • The boiling point of the tin bromide is not given correctly in this reference. In order to purify this compound, we applied Kugelrohr destillation at 240-250 °C and 0.05 mbar.
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    • In addition, the irratiation time could be reduced from over 2 h (Table 1, entry 1-3) to less than 5 min (entry 4).
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    • This assumption is further supported by the fact that the combined yield of 6 and 32 (as judged by HPLC) exceeded 80% in every kinetic experiment.
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    • For an analogous explanation using thiols as H-donors see ref 51.
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    • -1 for the H-atom transfer from the tin hydride 35 to a secondary α,β-dimethoxyalkyl radical in acetonitrile/water (1:1) at 34 °C.
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    • note
    • +) ≈ -2), the presence of the carbon-centered radical in 25 therefore increases the aciditiy of the α-hydroxy group by more than 7 orders of magnitude, while the basicity of the β-hydroxy group is only enhanced by 3-4 orders of magnitude.
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    • For the generation of unnatural derivatives, see: (a) Robins, M. J.; Guo, Z.; Samano, M. C.; Wnuk, S. F. J. Am. Chem. Soc. 1996, 118, 11317-11318. (b) Lehmann, T. E.; Berkessel, A. J. Org. Chem. 1997, 62, 302-309.
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