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Substituted 1,1,1-triaryl-2,2,2-trifluoroethanes and processes for their synthesis
Substituted 1,1,1-triaryl-2,2,2-trifluoroethanes and processes for their synthesis
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机译:取代的1,1,1-三芳基-2,2,2-三氟乙烷及其合成方法
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摘要
Synthetic procedures to tetraalkyls, tetraacids and dianhydrides substituted 1,1,1-triaryl-2,2,2-trifluoroethanes which comprises: (1) 1,1- bis(dialkylaryl)-1-aryl-2,2,2-trifluoroethane, (2) 1, 1-bis(dicarboxyaryl)- 1-aryl-2,2,2-trifluoroethane or (3) cyclic dianhydride or diamine of 1,1- bis(dialkylaryl)-1-aryl-2,2,2- trifluoroethanes. The synthesis of (1) is accomplished by the condensation reaction of an aryltrifluoromethyl ketone with a dialkylaryl compound. The synthesis of (2) is accomplished by oxidation of (1). The synthesis dianhydride of (3) is accomplished by the conversion of (2) to its corresponding cyclic dianhydride. The synthesis of the diamine is accomplished by the similar reaction of an aryltrifluoromethyl ketone with aniline or alkyl substituted or disubstituted anilines. Also, other derivatives of the above are formed by nucleophilic displacement reactions.
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