C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
253/136, 260/305
C07D 235/02 (2006.01) C07D 235/06 (2006.01) C07D 249/16 (2006.01) C07D 249/18 (2006.01) C10M 133/44 (2006.01) C23F 11/14 (2006.01)
Patent
CA 1077047
Abstract of the Disclosure Aminomethylated heterocyclic compounds of the formula I Image I wherein X is N or CR wherein R is hydrogen or a lower alkyl residue, A is a benzene or naphthalene residue, each unsubstituted or substituted with one or more alkyl or aralkyl residues and R1 and R2 are the same or different and each is a residue of formula R3O{(alkylene) O}x (alkylene) wherein R3 is hydrogen or alkyl and x is 0, 1, 2, 3 or 4; an alkenyl or a cyanoalkyl residue or R1 has its previous significance and R2 is hydrogen, al- kyl, cycloalkyl, aralkyl or a residue having the formula:- Image wherein A and X have their previous significance, are prepared by Mannich reaction of benzotriazoles or naphthotriazoles with formaldehyde and primary or secondary amines. The products consists mainly of the l-isomers. The compounds are metal passivators and are used as additives for functional fluids being in contact with metals. Those compounds with polar substituents at the amino-group are especially usable in water-based fluids such as anti-freeze or metal-working fluids. Those with apolar amino-substituents are preferred for oil-based systems such as lubricants or hydraulic fluids.
244033
Clark David R.
Popplewell Alan F.
Ag Ciba-Geigy
Na
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