Characteristics of the oxidative hydroxylation reaction of 7-alkyl-1,3,7-triazapyrenium salts
摘要:
The oxidative hydroxylation of 7-alkyl-1,3,7-triazapyrenium salts depends on the pH of the medium and the oxidant used. The products of monohydroxylation and dihydroxylation have been synthesized.
Synthesis and hydroxylation of 1-alkyl- and 7-alkyl- 1,3,7-triazapyrenium salts
作者:S. V. Pisarenko、O. P. Demidov、A. V. Aksenov、I. V. Borovlev
DOI:10.1007/s10593-009-0295-6
日期:2009.5
The regioselectivity of quaternization of 1,3,5-triazapyrenes by alkyl halides has been studied. Oxidative hydroxylation of 1-alkyl- and 7-alkyl-1,3,7-triazapyrenium salts gives 1-alkyl-1,2-dihydro-1,3,7-triazapyren-2-ones or 7-alkyl-6,7-dihydro-1,3,7-triazapyren-6-ones respectively. In the absence of an oxidant the hydroxylation of the 1-alkyl-1,3,7-triazapyrenium salts leads to a hydrolytic cleavage of the heterocycle.
7-alkyl-1,3,7-triazapyrenium salts: A rare case of double nucleophilic substitution
作者:O. P. Demidov、I. V. Borovlev、S. V. Pisarenko、O. A. Nemykina