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how would a meta quinone methide be possible? this article says that quinone methides are substituted cyclohexadienes with a carbonyl and an exocyclic methylene group. there is no way a cyclohexadiene ring can have an exocyclic methylene and a carbonyl group in meta positions, it would have a pentavalent and a trivalent carbon atom! — Preceding unsigned comment added by 80.147.106.67 ( talk) 10:19, 29 January 2014 (UTC)
- It does exist but can't been draw as a Kekule structure, you have to depict it as a di-radical. -- Project Osprey ( talk) 11:21, 14 February 2020 (UTC)
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how would a meta quinone methide be possible? this article says that quinone methides are substituted cyclohexadienes with a carbonyl and an exocyclic methylene group. there is no way a cyclohexadiene ring can have an exocyclic methylene and a carbonyl group in meta positions, it would have a pentavalent and a trivalent carbon atom! — Preceding unsigned comment added by 80.147.106.67 ( talk) 10:19, 29 January 2014 (UTC)
- It does exist but can't been draw as a Kekule structure, you have to depict it as a di-radical. -- Project Osprey ( talk) 11:21, 14 February 2020 (UTC)