DICYCLOHEXYL BENZOTHIAZOLE

Af,Af-dicyclohexyl-benzothiazole-sulfenamide (DCBS), cobalt naphthenate, and diaryl-p-diphenylene-amine (each 1 phr). 

An examination is made of the performance of dicyclohexyl benzothiazole sulphenamide (DCBS) as an accelerator in tyre compounds. Cure characteristics, adhesion and flow properties are discussed, and it is shown that DCBS does not form carcinogenic N-nitrosamines. 8 refs. 

A non-sulphur vulcanising agent for natural rubber and some types of synthetic rubber. One trade name is Dicup. /V,A/-Dicyclohexyl-2-benzothiazole sulphenamide... 

However, a truly general method for electron-rich heterocycle arylation was not reported until 2007 [38], Electron-rich, bulky butyl-di-l-adamantylphosphine or /er/-buty I dicyclohexyl phosphine in combination with Pd(OAc)2 afforded the best results, and the former was chosen because of cost considerations. Interestingly, electron-rich AMieterocyclic carbene ligands that facilitate oxidative addition of aryl chlorides to low-valent transition metals are inefficient in heterocycle arylation. A number of structurally diverse electron-rich heterocycles are reactive (Scheme 3). Thiophene, benzothiophene, 1,2- and 1,3-oxazole derivatives, benzofuran, thiazoles, benzothiazole, 1-alkylimidazoles, 1-alky 1-1,2,4-triazoles, and caffeine can be arylated. Electron-rich, electron-poor, and heteroaryl chlorides can be used. 

Benzothiazol-2-ylthio) succinic acid. See 1-(Benzothiazol-2-ylthio) succinic acid Benzothiazyl-2-t-butyl sulfenamide. See Butyl 2-benzothiazole sulfenamide Benzothiazyl-2-cyclohexyl sulfenamide. See N-Cyclohexyl-2-benzothiazolesulfenamide Benzothiazyl-2-dicyclohexyl sulfenamide. See Dicyclohexylbenzothiazyl-2-sulfenamide 2-Benzothiazyl-N,N-diethylthiocarbamyl sulfide Synonyms Diethyidithiocarbamic acid-2-benzothiazoyl ester Empincal C12H14N2S3 Formula (C6H4SCN)SSCN(C2H5)2 Properties Lt. yel. to tan free-flowing powd. dens. 

N,N -Dicyclohexyl-2-benzothiazole sulfenamide. See Dicyclohexylbenzothiazyl-2-sulfenamide Dicyclohexylbenzothiazyl-2-sulfenamide CAS 4979-32-2... 

Santicizer 278. See Benzyl phthalate Santochlor 20] Santochlor Flakes] Santochlor Molten. See p-Dichlorobenzene Santocur CBS. See N-Cyclohexyl-2-benzothiazolesulfenamide Santocure DCBS. See Dicyclohexyl benzothiazyl-2-sulfenamide Santocure IPS. See Diisopropyl benzothiazole sulfonamide... 

Hilton and Altenau and Hayes and Altenau used mass spectrometry to qualitatively identify volatile antioxidants in sheet samples of synthetic styrene-butadiene rubbers and rubber type vulcanizates. They extracted the polymer with acetone in a Sohxlet apparatus, removed excess solvent and dissolved the residue in benzene. Substances identified and determined by this procedure include N-phenyl-fi-napthylamine, 6-dodecyl-2,2,4-trimethyl 1,2-dihydroquinolines, trisnonyl-phenyl-phosphite, isobutylene - bisphenol A reaction product, 2-mercaptobenzothiazole sulphen-amide (accelerator) N-cyclohexyl-2-benzothiazole sulphenamide, N-tert-butyl-2-benzo-thiazole sulphenamide, 2-(4-morpolinothio) benzothiazole, 2-(2,6-dimethyl-morphal-inothio) benzothiazole, N,N -diisopropyl 2-benzothiazoles, 2-mercaptobenzo-thiazole and N,N -dicyclohexyl-2-benzothiazole sulphamide. 

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