Reactions of [(3,5-Di-<Emphasis Type="Italic">tert</Emphasis>-butyl-4-oxocyclohexa-2,5-dien- 1-ylidene)methyl]phosphonates with Phenols |
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| Authors: | Email author" target="_blank">E?M?GibadullinaEmail author T?R?Shaekhov Yu?K?Voronina M?A?Pudovik A?R?Burilov |
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| Institution: | 1.Arbuzov Institute of Organic and Physical Chemistry,Federal Research Center “Kazan Scientific Center of the Russian Academy of Sciences,”,Kazan, Tatarstan,Russia |
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| Abstract: | Dialkyl (3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]phosphonates reacted with phenol and benzenediols in the presence of trifluoromethanesulfonic acid to give products of electrophilic substitution in the benzene ring, the corresponding diarylmethylphosphonates or phenylenebis(arylmethylene)]- diphosphonates. The reaction of diphenyl (3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]phosphonate with 2-methylbenzene-1,3-diol at a ratio of 1: 1 afforded 3-(3,5-di-tert-butyl-4-hydroxyphenyl)-6-hydroxy-7-methyl-2-phenoxy-2,3-dihydro-1,2λ5-benzoxaphosphol-6-one. |
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