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Formation of 3,3,5,7-tetranitrooxindole and 3,5,7-trinitroindazole by nitration of oxindole

โœ Scribed by Jan Bergman; Solveig Bergman

Book ID
104255929
Publisher
Elsevier Science
Year
1996
Tongue
French
Weight
216 KB
Volume
37
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

Absfract: Nitration (IINO3/II2SO4) of oxindole gave 3,3,5,7-teuaniuooxindole (1~). which readily underwent ring-opening and decarboxylation to 4,6-diniuo-2.(dinitromethyl)aniline (4b), which in turn could be cyclizcd to 3,5,7-uinitroindazole (5).

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1997 indole derivatives, isoindole derivatives indole derivatives, isoindole derivatives R 0140 14 -104 Formation of 3,3,5,7-Tetranitrooxindole and 3,5,7-Trinitroindazole by Nitration of Oxindole. -The tetranitrooxindole (I) is obtained by reaction of oxindole with HNO3/H2SO4 as one of the products