US 4,788,292 AGranted

Perfluoroalkyl substituted benzotriazoles

AssigneeCiba-Geigy Corporation

InventorsKirtland P. Clark, Athanasios Karydas

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Abstract

Compounds of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of one another, represent hydrogen, hydroxy or halogen or are alkyl, alkoxy, alkanoyloxy, or alkanoylamino groups which are unsubstituted or substituted by alkoxy, hydroxyl, halogen, aryl, cycloalkyl, azacycloalkyl, cyano or by polyalkyleneoxy, or two or more of adjacent R.sub.1 -R.sub.4 together form one or more fused rings of 5-8 members each; R is alkylene of up to 16 carbon atoms which is unsubstituted or substituted by hydroxy, lower alkoxy, or halo and which may be interrupted by oxygen, sulfur, carboxamido, sulfonamido, aminosulfonyl, aminocarbonyl, carbonyloxy, sulfinyl, or sulfonyl; and R.sub.f is perfluoroalkyl or perfluoroalkoxyalkyl of 4 to 16 carbon atoms; or mixtures thereof. Such compounds are useful as oil soluble corrosion inhibitors.

Claims12

Dependent claims

A compound of the formula ##STR17## wherein R is an alkylene or alkenylene having 1 to 16 carbon atoms which is unsubstituted or substituted by hydroxyl or by lower alkoxy;

and said alkylene is uninterrupted or is interrupted by a group selected from oxygen, sulfur, carboxamido, sulfonamido, aminocarbonyl, aminosulfonyl, carbonyloxy, sulfinyl and sulfonyl;
R.sub.f is a C.sub.4 -C.sub.16 -perfluoroalkyl or a C.sub.4 -C.sub.16 -perfluoroalkoxy;
and
R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently (a) hydrogen, halogen or hydroxyl;
or (b) alkyl of up to 10 carbon atoms, lower alkoxy, lower alkanoyloxy or lower alkanoylamino each of which is independently unsubstituted or further substituted by C.sub.6 -C.sub.10 -aryl, C.sub.4 -C.sub.7 -cycloalkyl, C.sub.3 -C.sub.6 -azacycloalkyl, lower alkoxy, hydroxy, halogen, cyano or poly-lower alkyleneoxy;
or R.sub.1 and R.sub.4 are hydrogen, R.sub.2 is methoxy and R.sub.3 is N-(1-ethyl-2-pyrrolidinylmethyl)carbamoyl.

3 more elements

Dependencies are inferred from the claim text.