Substituted 1,1,1-triaryl-2,2,2-trifluoroethanes and processes f

Details Substituted 1,1,1-triaryl-2,2,2-trifluoroethanes and processes f Substituted 1,1,1-triaryl-2,2,2-trifluoroethanes and processes f

1986-10-29

1988-07-19

Hollrah, Glennon H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260386, 260395, 549241, C07C 1516, C07D23702

Patent

active

047583800

ABSTRACT:
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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J. Org. Chem., vol. 42, No. 7, 1977, pp. 1186-1189, Kray et al., "Synthesis of Multifunctional Triarylfluoethanes/Condensation of Fluoro Ketones".

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