Journal
RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
Volume 46, Issue 7, Pages 1049-1052Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1070428010070146
Keywords
-
Categories
Ask authors/readers for more resources
A procedure has been developed for the synthesis of 5,5-dimethyl-3-oxo-4,5-dihydro-3H-pyrrole 1-oxide via oxidation of 2,2,6,6-tetramethyl-4-oxopiperidine 1-oxyl with chlorine in aqueous sodium perchlorate and subsequent ring contraction in the resulting 2,2,6,6-tetramethyl-1,4-dioxopiperidinium perchlorate in dilute perchloric acid. The relative rates of proton exchange between the CH(2) and CH groups in the title compound were determined by (1)H NMR spectroscopy in D(2)O, and the acidity constant was estimated on the basis of the dependence of the UV spectrum upon pH (pK (a) = 13.2).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available