6008-69-1

Upstream product

• 1191-43-1 1,6-dimercaptohexane 
• 131760-68-4 1,2-dimethyl-3,8-dioxo-1,2,5,6-diazadithiocane 
• 2163-00-0 1,6-dichlorohexane 
• 155345-54-3 1-bromo-6-iodohexane 
• 2678-29-7 1,6-bis-acetylsulfanyl-hexane 
• 629-03-8 1 ,6-dibromohexane 

Downstream Products

• 1191-43-1 1,6-dimercaptohexane 
• 131760-68-4 1,2-dimethyl-3,8-dioxo-1,2,5,6-diazadithiocane 
• 13344-04-2 1,6-bis-butylsulfanyl-hexane 
• 56348-40-4 2,9-dithiadecane 
• 42937-86-0 1,6-bis(chlorosulfanyl)hexane 

Relevant academic research and scientific papers

H5[PMo10V2O40] as a green, reusable, and highly efficient catalyst for the oxidation of dithiols in intermolecular reactions using permanganate as an oxidizing reagent

[H5PV2Mo10O40] catalyzed oxidation of dithiols to related cyclic disulfides. Potassium permanganate as an oxidizing reagent under mild conditions was carried out in this reaction. This system provides an efficient, convenient, and practical method for the syntheses of cyclic disulfides. In this work, the comparisons among the Keggin and Dawson ions are addressed in term of relative stability hardness and acidity. Copyright Taylor & Francis Group, LLC.

Preparation method of rubber aid 1,6-bis(N,N-dibenzyl carbamyl disulfide) hexane

The invention provides a preparation method of a rubber aid 1,6-bis(N,N-dibenzyl carbamyl disulfide) hexane. According to the method, 1,6-dimercaptohexane is used as a raw material and reacts with hydrogen peroxide to form 1,2-dithiocyclooctane, then the 1,2-dithiocyclooctane reacts with chlorine to form 1,6-secondary sulfonyl chloride octane, and the 1,6-secondary sulfonyl chloride octane reactswith dibenzyl dithiocarbamate to form a final product. The synthesis process is simple and easy to operate, the reaction time is shortened, and the production efficiency and the yield are improved. According to the method, no toxic and harmful substance formaldehyde is used, no 1,6-dithiosulfo hexane disodium salt hydrate is used, a large amount of organic wastewater containing inorganic salt is reduced, the used solvent can be reused after simple treatment, and the process is clean and environmentally friendly.

[FeFe]-Hydrogenase H-Cluster Mimics with Various -S(CH2)nS- Linker Lengths (n = 2-8): A Systematic Study

The effect of the nature of the dithiolato ligand on the physical and electrochemical properties of synthetic H-cluster mimics of the [FeFe]-hydrogenase is still of significant concern. In this report we describe the cyclization of various alkanedithiols to afford cyclic disulfide, tetrasulfide, and hexasulfide compounds. The latter compounds were used as proligands for the synthesis of a series of [FeFe]-hydrogenase H-cluster mimics having the general formulas [Fe2(CO)6{μ-S(CH2)nS}] (n = 4-8), [Fe2(CO)6{μ-S(CH2)nS}]2 (n = 6-8), and [Fe2(CO)6{(μ-S(CH2)nS)2}] (n = 6-8). The resulting complexes were characterized by 1H and 13C{1H} NMR and IR spectroscopic techniques, mass spectrometry, and elemental analysis as well as X-ray analysis. The purpose of this research was to study the influence of the systematic increase of n from 2 to 7 on the redox potentials of the models and the catalytic ability in the presence of acetic acid (AcOH) by applying cyclic voltammetry.

Comparison of cyclic and polymeric disulfides as catalysts for the regioselective chlorination of phenols

Two cyclic and two polymeric disulfides have been synthesized and established to be useful catalysts for the chlorination of m-xylenol, o-cresol, m-cresol and phenol using freshly distilled sulfuryl chloride in the presence of aluminum or ferric chloride as a co-catalyst at room temperature. The yields of p-isomers and para/ortho ratios were higher compared to cases where no catalyst was used with most catalysts for most phenols even when a very low concentration of disulfide was used.

The synthesis of polymeric sulfides by reaction of dihaloalkanes with sodium sulfide

Several poly(alkylene sulfide)s have been synthesized in excellent yields from reactions of α,ω-dibromo- and/or α,ω- dichloroalkanes with sodium sulfide nonahydrate under reflux conditions. The procedure is general, simple and convenient for the production of various poly(alkylene sulfide)s and the way reaction parameters influence the properties of the polymers formed has been examined.

Oxidation of thiols to disulfides with molecular bromine on hydrated silica gel support

Results of oxidation of thiols to disulfides with molecular bromine on silica gel solid support are reported. The procedure utilizes organic media and does not require a base to neutralize HBr by-products to suppress acid promoted side reactions. Utilization of silica gel support simplifies work up and product isolation.

Chlorination of aromatic compounds and catalysts therefor

A process for the chlorination of an aromatic compound of the following formula (A) : wherein RAis H or C1to C12alkyl, cycloalkyl, aryl, alkaryl, aralkyl or carboxyalkyl, the or each RBindependently is selected from H, C1-C4alkyl (especially methyl), C1-C4haloalkyl or polyhaloalkyl, e.g. C1-C4perfluoroalkyl, C1-C4alkoxy, C5-C12aryl (e.g. phenyl), alkaryl or aralkyl, or halogen, n is an integer which is 0, 1 or 2, and the or each RB, if present, may independently be attached at the ortho or the meta position (preferably at the meta-position), which process comprises reacting (preferably in homogeneous liquid phase below 35°C) the aromatic compound (which is preferably phenol) with a chlorinating agent (preferably sulphuryl chloride) in the presence of a sulphur-containing catalyst, optionally also in the presence of a Lewis acid co-catalyst, characterised in that the sulphur-containing catalyst is a compound according to the following formula (I) or formula (II) : in which: each of X1, X2, and X3is independently selected from the group consisting of: S, SO, SO2; R1is selected from the group consisting of: optionally substituted straight or branched chain alkyl or alkanediyl having from 2 to 20 carbon atoms, optionally substituted straight or branched chain alkaryl or aralkyl having from 5 to 20 carbon atoms, and optionally substituted aryl having from 5 to 20 carbon atoms; R2is an optionally substituted straight or branched chain alkyl or alkanediyl group having from 1 to 20 carbon atoms; R3and R4are each independently selected from the group consisting of: H, optionally substituted straight or branched chain alkyl or alkanediyl having from 1 to 20 carbon atoms, optionally substituted straight or branched chain alkaryl or aralkyl having from 5 to 20 carbon atoms, and optionally substituted aryl having from 5 to 20 carbon atoms; R5is an optionally substituted straight or branched chain alkylene, arylene, alkarylene or arylalkylene group having from 1 to 20 carbon atoms; wherein in the above definitions of R1, R2, R3, R4and R5the optional substituents may be independently selected from the following: halogen (e.g. F, Cl), hydroxy, amino, cyano, nitro, C1-C4alkyl, C1-C4haloalkyl e.g. C1-C4perfluoroalkyl, C1-C4alkoxy, C1-C4alkoxycarbonyl.

Highly Selective Sulfur Transfer Reaction in the Solid State

Benzyltriethylammonium tetrathiomolybdate 1 reacts readily with benzyl halides, alkyl iodides and acyl halides in the solid state to give the corresponding disulfides in good yields and with remarkable selectivity.

The macrocyclization reaction of terminal dibromoalkanes with sulfide on alumina. The use of a solid support as an alternative to the high dilution technique

The reaction of a series of terminal dibromoalkanes with S-2 on Al2O3 has been examined. The use of a solid support for the macrocyclization represents a viable alternate procedure to the more traditional high dilution technique in solution. The cyclization also occur with thioacetamide on unactivated alumina.