Dimethyl-pentyl

N,ISf -bis(l,4-dimethyl-pentyl)phen ylene diamine [3081-14-9] ll2oll36l 2 RU Monsanto Co. Ururoyal Chemical UOP, Inc. 

G. Cahiez, S. Marquais, and M. Alami 135 MANGANESE-COPPER-CATALYZED CONJUGATE ADDITION OF ORGANO-MAGNESIUM REAGENTS TO a,(J-ETHYLENIC KETONES PREPARATION OF 2-(1,1 -DIMETHYL-PENTYL)-5-METHYLCYCLO-HEXANONE FROM PULEGONE... 

When propylene is in the feed, it will react with t-C4Hg to form dimethyl pentyl cations this reaction is very similar to Reaction G shown in Table II. In addition, propylene reacts with sulfuric acid to form sec-propyl sulfates similar to Reaction 1-1. Goldsby (21,22) has described the production of sec-propyl sulfates In some cases, d1-sec-propyl sulfate Is formed. These propyl sulfates are more thermally stable than butyl sulfates. 

The resulting propylene will then react primarily with t-butyl cations and heavier cations forming dimethyl pentyl and still heavier cations. 

Cyclopropen Chlor-(2-chlor-2,4-dimethyl-pentyl)- El7d, 2993 (Cl/Cl -> Oxo)... 

C7H17N dimethyl pentyl amine 26153-88-8 395.15 33.398 1,2 12430 C8F16 perf luoro-1,4-di methyl cyclohexane 374-77-6 373.65 31.890 1,2... 

C13H20 2,4-dimethyl pentyl )benzene 54518-00-2 228.72 22.147 2 26561 C13H29N tert-amyl-tert-octylamine 150285-07-7 291.15 34.435 2... 

As discovered by Natta, Pino and coworkers(16,17), isotactic polymerization of chiral cc-olefins is stereoselective (e.g., isotactic poly-(R,S)-3-methyl-l-pen-tene consists of enantiomeric macromolecules which can be partially resolved.) If one considers that the isotactic steric control arises from the enantiose-lectivity of the chiral catalytic sites toward the enantiotopic carbon of the monomer(7 11) then stereoselectivity simply means that the insertion is dia-stereoselective. In other words, the diastereotopic faces of the monomer must have a different reactivity in the insertion (Figure 3)- Figure 4 shows the NMR spectrum of isotactic poly-(R,S)-3-methyl-l-pen-tene obtained in the presence of TiCl3 Al (sample 8). The resonances at 13-2l, 13.57 15-09 and 15-27 ppm are due to the - CI s of 2 - -uD-2,3-dimethyl-pentyl end groups formed in the initiation step(l8). 

Naugard 1-3. See N-(1,4-Dimethyl pentyl )-N -phenyl-p-phenylenediamine Naugard 1-4. See N-lsopropyl-N -phenyl-p-phenylenediamine... 

Synonyms N,N -bis-(i,4-dimethyl-pentyl)-p-phenylenediamine iV-cyclohexylbenzothiazyl sulfenamide CBTS, CBS cyclohexylben-zothiazyl sulfenamide N-cyclohexyl-2-benzothiazyl sulfenamide Santocure N,N -bis(i,4-dimethylpentyl)i,4-benzenediamine N,iS -di(i,4-dimethylpentyl)-p-phenylenediamine Eastozone 33 Eastozone tenamene Santoflex 77 Vulkanox 4030 Uses intermediate in organic synthesis accelerator in natural and styrene-butadienethiazyl sulfenamide rubber A... 

C20H38O4 hexanedioic acid bis-(2,2-dimethyl-pentyl) ester 40736-03-6... 

Substitutes for wax to provide protection of tyre sidewalls against static ozone cracking are examined. The use of low levels of wax or its complete elimination in the tyre sidewall by combinations with dialkyl paraphenylene diamine (77PD) or 2,4,6-tris - (N-1,4 dimethyl pentyl-p-phenylene diamino) 1, 3, 5 triazine (TAPDT) is discussed for the long term resistance to dynamic ozone crack resistance. In addition, a mechanism is proposed to explain how ozone reacts with antiozonants, which involves a scavenging function. 5 refs. 

Until recently, there were no effective, nonstaining, chemical antiozonants, since most chemical antiozonants were based upon p-phenylenediamine which severely stains rubber compounds. However, recent developments in the rubber chemicals industry have resulted in the production of a nonstaining, slightly discoloring anti-ozonant based upon triazine chemistry. This antiozonant is 2,4,6-tris-(Af-1,4-dimethyl-pentyl-p-phenylenediamino)-l,3,5-triazine (TAPDT), and the molecular stmcture is shown below. 

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