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2‐Acetyl‐4,5,6‐trichlor‐1,3‐tropolon durch Ringerweiterung von Tetrachlor‐ o ‐benzochinon mit Aceton
Author(s) -
Kogler Herbert,
Fehlhaber HansWolfram,
Leube Karl,
Dürckheimer Walter
Publication year - 1989
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19891221123
Subject(s) - tropolone , chemistry , acetone , medicinal chemistry , benzene , ring (chemistry) , benzoquinone , organic chemistry
2‐Acetyl‐4,5,6‐trichloro‐1,3‐tropolone form Ring Enlargement of Tetrachloro‐ o ‐benzoquinone with Acetone Reaction of tetrachloro‐ o ‐benzoquinone with acetone leads to 2‐acetyl‐4,5,6‐trichloro‐1,3‐tropolone ( 2 ). The correct structure of this product was now determined using C,C‐correlating NMR spectra. Methanolysis of the tropolone 2 opens an interesting pathway to the substituted phthalide 4 .