ISSN:
0018-019X
Schlagwort(e):
Chemistry
;
Organic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
Dihydro-anthracenophenazinones (Cyclization of Quinonylmethane Dyes), 4th Communication.Substituted dihydroanthraceno[1,2-b]phenazinones were synthetized by reaction of 1-alkyl-2,3-dimethyl-quinoxalinium-perchlorates with dichloro- or tetrachloro-1,4-anthraquinone and cyclization of the intermediate quinoxalylidenmethyl-1, 4-anthraquinones. The tetrachloro derivative of 1,4-anthraquinone obtained by chlorination in boiling acetic acid in the presence of iodine is identified to be the 2,3,6,9-isomer. The properties of the dihydroanthraceno[1,2-b]phenazinones are discussed. The visible, mass, and some 1H-NMR. spectra are given.
Zusätzliches Material:
2 Tab.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/hlca.19760590234
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