Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1988-02-23
1989-12-05
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
260395, 260386, 549241, 562415, 562417, C07C 1516, C09B 1104
Patent
active
048851167
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.
REFERENCES:
patent: 3310573 (1967-03-01), Coe
patent: 4758380 (1988-07-01), Alston et al.
J. Org. Chem., vol. 42, No. 7, 1977; Kray et al., pp. 1186-1189.
Alston William B.
Gratz Roy F.
Covington Raymond
Mackin James A.
Manning John R.
Raymond Richard L.
Shook Gene E.
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