Properties of the OH adducts of hydroxy-, methyl-, methoxy-, and amino-substituted pyrimidines: Their dehydration reactions and end-product analysis

Journal of Physical Chemistry A

Volumn 106, Issue 11, 2002, Pages 2497-2504

  Luke, T L ^b   Jacob, T A ^b   Mohan, H ^a   Destaillats, H ^c   Manoj, V M ^b   Manoj, P ^b   Mittal, J P ^a   Hoffmann, M R ^c   Aravindakumar, C T ^b  

^a BHABHA ATOMIC RESEARCH CENTRE   (India)

^b MAHATMA GANDHI UNIVERSITY   (India)

^c CALIFORNIA INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

OXIDIZING INTERMEDIATES;

CATALYSIS; DEHYDRATION; DIMERIZATION; DIMERS; GLYCOLS; PH EFFECTS; RATE CONSTANTS;

FREE RADICAL REACTIONS;

EID: 0037149771     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp0117720     Document Type: Article

References (31)

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22. It must be noted that the deprotonation by radiolytically produced OH- would take place only with those pyrimidines having a hydrogen at the N (1) position. This means that among the selected pyrimidines, only DMU and MU show this phenomenon. However, the absorbance due to the deprotonated DMU and MU at pH 10.4 will not appear as these compounds are already in the deprotonated form (pK's are 9.8 and 9.5 for DMU and MU, respectively) and therefore any ground-state absorption will be taken care by the optical detection setup. The phenomenon of deprotonation and their fast (re)protonation of pyrimidines with hydrogen substituted at N(1) is well documented in Aravindakumar, C.T.; Jacob, T.A.; Mohan, H.; Mahal, H.S.; Mukherjee, T.; Mittal, J.P. Chem. Phys. Lett. 1998, 287, 645 and Greenstock, C.L.; Shragge, P.C.; Hunt, J.W. J. Phys. Chem. 1973, 77, 1624.
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