77-61-2Relevant academic research and scientific papers
4-Formyl amino-n-methylpiperidine derivatives, the use thereof as stabilisers and organic material stabilised therewith
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, (2008/06/13)
The present invention relates to 4-formylamino-N-methylpiperidine derivatives of the formula (I) where the variables are as defined in the Description, to a process for preparing these piperidine derivatives, to the use of these piperidine derivatives of the invention, or prepared according to the invention, for stabilizing organic material, in particular for stabilizing plastics or coating materials, and also to the use of these piperidine derivatives of the invention, or prepared according to the invention, as light stabilizers or stabilizers for wood surfaces. The present invention further relates to stabilized organic material which comprises these piperidine derivatives of the invention or prepared according to the invention.
Lubricant composition
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, (2008/06/13)
A composition comprising a) a lubricant or a hydraulic fluid and b) at least one compound of the general formula I STR1 in which x=1 or 2 and, if x=1, R is as defined for R1 or R3 --O-- or, if x=2, R is as defined for R8, and R1 and R3 are, for example, alkyl, cycloalkyl, alkenyl, phenyl, naphthyl, aralkyl or alkaryl, or alkyl, cycloalkyl, alkenyl, phenyl, naphthyl, aralkyl or alkaryl, which are monosubstituted or polysubstituted by groups from the series comprising halogen, cyano, nitro, e.g. --OCH3 or e.g. --COOCH3, or alkyl, cycloalkyl, alkenyl, aralkyl or alkaryl which are interrupted by one or more groups from the series comprising --O--, --S--, --NH--, STR2 or alkyl, cycloalkyl, alkenyl, aralkyl or alkaryl which are monosubstituted or polysubstituted by groups from the series comprising halogen, cyano, nitro, e.g. --OCH3 or e.g. --COOCH3 and interrupted by one or more groups from the series comprising --O--, --S--, --NH--, STR3 and R2 is NR4 R5, --OR6 or --SR7, and R4 and R5 are identical or different and are, for example, --H, alkyl, phenyl, naphthyl, aralkyl or alkaryl, or R4 and R5, together with the N atom linking them, form, for example, a piperidine or morpholine radical, and R6 and R7 can be alkyl which may be interrupted by one or more groups from the series comprising --O--, --S--, --NH--, STR4 or are, for example, phenyl, naphthyl, alkaryl or aralkyl, and R8 can be alkylene which may be interrupted by at least one --O-- group or alkylidene which may be interrupted by at least one --O-- group. Some of the compounds of the formula I are novel. The compositions show an improved stability towards oxidative degradation, confer protection under extreme pressures and reduce frictional wear.
New triazole compounds
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, (2008/06/13)
New triazole compounds, useful as metal deactivators and/or antioxidants in organic material, having the formula I: wherein X is the triazole residue of formula II: or the benzotriazole residue of formula III or IIIA: in which R is hydrogen or methyl.
Mercaptotriazine derivatives as lubricant additives
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, (2008/06/13)
Compounds of the formula STR1 and of the formula STR2 in which X and X' are, for example, --S--CHR1, --NR2 R3, --S--R3, --NR2 R3 or --OR3, R1 is, for example, --H, alkyl, cycloalkyl or phenyl, R2 and R3 are, for example, --H, alkyl, cycloalkyl or phenyl, or R2 and R3 together form a 3- to 7-membered heterocyclic ring, and R is alkylene, and compositions containing at least one compound of the formulae I and/or II and at least one lubricant, one hydraulic fluid or one metal working fluid, the compounds of the formula I and/or II being used as extreme pressure and wear-reducing additives.
N-substituted tetrahydroquinolines for use as antioxidants in lubricants
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, (2008/06/13)
Compounds useful as additives for lubricants, hydraulic oils and metal-working fluids include those of formula IV STR1 where R1 and R2 are independently alkyl or substituted aryl, R3 and R13 are independently hydrogen or methyl, R6 is alkyl, alkenyl, aralkyl or substituted benzyl, and R15 and R16 are independently hydrogen, alkyl, aryl or aralkyl.
Methylphosphonic acid amine salt lubricant additives
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, (2008/06/13)
Novel salts of methylphosphonic acid with primary amines are described. These compounds are preferably used as extreme pressure additives in lubricant compositions.
Sulfur-containing compounds as antioxidants for lubricants and elastomers
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, (2008/06/13)
Compounds of the formula (I) STR1 in which the Rs independently of one another are H, phenyl, naphthyl or C7 -C30 alkaryl and R1 is H, C1 -C8 alkyl, C7 -C9 aralkyl, C5 -C12 cycloalkyl, phenyl, naphthyl, C7 -C30 alkaryl or a group of the formula (II) R2 is C7 -C30 alkaryl, phenyl, naphthyl or phenyl containing, in the para-position, an HO or C1 -C18 alkoxy group or a group of the formulae STR2 or R1 and R2, together with the nitrogen atom to which they are attached, are a radical of the formula (III) STR3 R3 is a radical of the formulae --(CH2)b --COOR6 or --(CH2)2 OCOR7, a is the number 1, 2 or 3 and b is the number 1 or 2, and R4 is phenyl or a group of the formula (II), the two R5 s independently of one another are H, C1 -C24 alkyl, C5 -C12 cycloalkyl or C7 -C9 aralkyl, and R6 is H, C1 -C18 alkyl or benzyl, R7 is C1 -C14 alkyl, phenyl or a group of the formula in which Y is --O-- or --S--, a is the number 1, 2 or 3 and m is the number 1 or 2, B is a direct bond, --S--, --S--S-- or a C1 -C12 alkylene radical, X in the formula (III) is a direct bond, --S-- or a group of the formulae STR4 form a phenothiazine, phenazine, acridine or carbazole radical.
1,4-Oxathianones and 1,4-oxathiepanones
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, (2008/06/13)
The compounds of the formula STR1 in which R is C1 -C24 alkyl, C3 -C20 alkenyl, C5 -C6 cycloalkyl, unsubstituted or C1 -C4 alkyl-substituted phenyl or phenyl-C1 -C4 alkyl, n is 1 or 2, and X is S or O, are highly suitable as additives, in particular as antiwear and high-pressure additives, and as corrosion inhibitors in functional fluids, for example in lubricants, fuels, hydraulic fluids, metal-working fluids and drilling fluids.
Triazole-organodithiophosphate reaction product additives for functional fluids
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, (2008/06/13)
New reaction products, useful as additives for functional fluids, are obtained by reacting, at elevated temperature, (A) a triazole having the formula IA or IB: STR1 wherein R7 is hydrogen or a C1 -C20 alkyl residue; R8 and R9 are the same or different and each is C1 -C20 alkyl, C3 -C20 alkenyl, C5 -C12 cycloalkyl, C7 -C13 aralkyl, C6 -C10 aryl or R8 and R9, together with the nitrogen atom to which they are attached, form a 5-, 6- or 7-membered heterocyclic residue or R8 and R9 is each a residue of formula: wherein X is O, S or N(R12), R12 is hydrogen or C1 -C20 alkyl, "alkylene" is a C1 -C12 alkylene residue and n is 0 or an integer from 1 to 6; R10 is hydrogen, C1 -C20 alkyl or C6 -C10 aryl or C7 -C18 alkyl phenyl; and R11 is hydrogen, C1 -C20 alkyl or a residue --CH2 NR8 R9 wherein R8 and R9 have their previous significance; with (B) an organodithiophosphate having the formula: STR2 in which R13 is a C1 -C20 alkyl or C7 -C18 alkyl phenyl or C7 -C13 aralkyl group, M is a metal ion of Group IA, IB, IIA, IIB, VB, VIB, VIIB or VIII of the Periodic System of Elements, and y is the valency of M.
