Monatshefte fur Chemie p. 545 - 549 (1991)
Update date:2022-08-03
Topics:
Schubert-Zsilavecz, Manfred
4a,6-Bis-(N-methylanilino)-7-hydroxy-2,3,8-trimethyl-4a,9a-dihydro-xanthene-dione (4) was obtained by thermolysis of 6-(N-methylanilino)-7a-methyl-3a,7a-dihydroindazol-4,7-dione (1).The structure was determined on basis of 1D- and 2D-NMR techniques. Keywords.Dihydroxanthenedione; 2D-NMR; 1H-13C-Shift-correlation; COLOC.
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