90-66-4

Usage

Flammability and Explosibility

Notclassified

InChI:InChI=1/C22H30O2S/c1-13-9-15(21(3,4)5)19(23)17(11-13)25-18-12-14(2)10-16(20(18)24)22(6,7)8/h9-12,23-24H,1-8H3

Upstream product

• 2409-55-4 2-tert-Butyl-4-methylphenol 

Downstream Products

• 30008-05-0 Phenyl-thiobis(6-t-butyl-4-methyl-o-phenylen)phosphit 
• 104614-50-8 4,8-Di-tert-butyl-2,10-dimethyl-6-phenoxy-5,7-dioxa-12-thia-6-phospha-dibenzo[a,d]cyclooctene 6-oxide 
• 54519-52-7 (3-tert-butyl-2-hydroxy-5-methylphenyl)(3-tert-butyl-2-methoxy-5-methylphenyl)sulfide 
• 54519-53-8 bis(3-tert-butyl-2-methoxy-5-methylphenyl)sulfide 
• 241489-02-1 (CH₃C₄H₉C₆H₂O)2SMoCl₂C₆H₅C₂C₆H₅ 
• 241489-01-0 W(η2-PhC.ident.CPh)(2,2'-thiobis(4-methyl-6-tert-butylphenoxo))Cl2 
• 678986-05-5 Ti[2,2'-thiobis(4-methyl-6-tert-butylphenoxo)](NMe₂)2 
• 442199-65-7 [Sm(2,2'-thiobis(6-tert-butyl-4-methylphenolato))(2,6-di-tert-butyl phenolato)]2 

Relevant academic research and scientific papers

4-Formyl amino-n-methylpiperidine derivatives, the use thereof as stabilisers and organic material stabilised therewith

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.

Thioether substituted hydroxybenzophenones and stabilized compositions

2-Hydroxybenzophenone derivatives substituted in the 4′-position by a thioether moiety exhibit enhanced absorption in the UV at longer wavelength. Compositions comprising organic material subject to actinic degradation are beneficially stabilized with such derivatives.

Lubricant composition

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.

Substituted 1,4-diamino-2-butene stabilizers

N,N,N',N'-Tetrasubstituted 1,4-diamino-2-butenes where the substituents are alkyl, cycloalkyl, aralkyl, aryl or mixtures thereof provide effective antioxidant protection to lubricants and/or synthetic polymers.

Perfluoroalkyl substituted hydroxyphenylalkanoic ester antioxidants and stabilized compositions

Perfluoroalkyl substituted neopentyl alcohols can be reacted with substituted hydroxphenylalkanoic esters to form perfluoroalkyl containing hydroxyphenylalkanoic ester antioxidants. The perfluoroalkyl substituted hindered hydroxyphenyl alkanoates are stablizers which confer superior processing stability to polymers processed at elevated temperatures such as polypropylene, as well as protecting said polymers from thermal and oxidative degradation.

Carbohydrate substituted dibenzo(d,f)(1,3,2)dioxaphosphepin stabilizers

Carbohydrate substituted dibenzo[d,f][1,3,2]dioxaphosphepin compounds of formula I STR1 where A is a carbohydrate residue are effective stabilizers for polymers processed at elevated temperatures and subject to thermal or oxidative degradation.

Beta crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl) phosphite]

The beta crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl) phosphite] is obtained by crystallizing said compound from the melt at elevated temperatures. The beta crystalline form is an effective process stabilizer for polyolefins, particularly polypropylene.

Influence of phosphorus-sulfur bonding in the formation of octahedrally coordinated cyclic pentaoxyphosphoranes

Formation of new pentaoxyphosphoranes X[R1R2C6H2O]2P(OPh) 3 (X = S, R1 = R2 = t-Bu for 1; X = S, R1 = t-Bu, R2 = Me for 2; X = S, R1 = R2 = Me for 3; X = CH2, R1 = R2 = t-Bu for 4) contaimng sulfur-bridged eight-membered rings was achieved by oxidative addition reactions of triphenyl phosphite with diols in the presence of N-chlorodiisopropylamine in yields ranging from 70 to 80%. 1 contains 0.5 mol of Et2O of crystallization. X-ray analysis of 1-3 revealed molecular structures having varying degrees of P-S bond formation, which results in distorted octahedral configurations. The P-S distances, 2.880(1) (3), 2.744(2) (2), and 2.640(2) ? (1) when included in a series with those of related cyclic oxyphosphoranes studied earlier, showed a uniform decrease which parallels a structural coordinate measuring the formation of an octahedron from a square pyramid, i.e., a trajectory proceeding from five-to six-coordinated phosphorus. The decrease in P-S distance along the series is attributable to an increase of electronic factors supplied by the alkyl substituents on the eight-membered ring, t-Bu > Me, and the electron-withdrawing ability of the appendent ligands, (OC6H4)2 > OCH2CF3 > OPh. 1H and 31P solution-state NMR data are also reported. The structures of 1-3 contrast with that for an analogous derivative S(Me2C6H2O)2P(OCH2CF 3)3 (B), having the same sulfur-containing eight-membered ring which resides in a trigonal bipyramid with the ring located diequatorially and possessing no P-S bond (P-S = 3.504(3) ?). The results have important mechanistic implications for enzyme hydrolysis of phosphates at active sites having interacting sulfur residues. Oxyphosphorane 1 crystallizes in the triclinic space group P1 with a = 9.696(3) ?, b = 10.814(2) ?, c = 22.113(3) ?, α = 82.62(1)°, β = 85.38(2)°, γ = 88.08(2)°, and Z = 2. Oxyphosphorane 2 crystallizes in the monoclinic space group F21/n with a = 12.853(3) ?, b = 15.484(4) ?, c = 19.081(6) ?, β = 108.70(2)°, and Z = 4. Oxyphosphorane 3 crystallizes in the triclinic space group P1 with a = 8.757(2) ?, b = 10.047(1) ?, c = 17.614(3) ?, α = 103.88°, β = 100.69(2)°, γ = 92.65(2)°, and Z = 2. The final conventional unweighted residuals are 0.056 (1), 0.031 (2), and 0.032 (3).

2-(2-hydroxy-3-perfluoroalkyl thiomethyl-5-alkylphenyl)2H-benzotriazoles and stabilized compositions thereof

2-(2-Hydroxy-3-perfluoroalkylthiomethyl-5-alkylphenyl)-2H-benzotriazoles are prepared by reacting the Mannich base hydrohalide or quaternary salt of a 2-(2-hydroxy-5-alkylphenyl)-2H-benzotriazole with a perfluoroalkyl mercaptan. The products exhibit outstanding efficacy in protecting organic substrates from light induced deterioration as well as good resistance to loss by volatilization or exudation during the processing of stabilized compositions at elevated temperatures.

Substituted 1-hydroxy-2,6-diaryl-4-piperidone ketals and polymer compositions stabilized therewith

1-Hydroxy-2,6-diaryl-4-piperidone ketal derivatives, such as the compound of formula I STR1 wherein Ar1 and Ar2 are each phenyl, R1 to R6 are all hydrogen, X1 and X2 are each --O-- and T is a direct bond, are novel compounds and are effective process stabilizers, such as polypropylene, for polymers processed at elevated tempertures providing both good melt flow stabilization and good resistance against discoloration during said processing.