Sodium dimethyldithiocarbamate

Corrosion of. power-station condenser tubes by polluted, waters has been particularly troubles ome in Japan anil efforts have been made to,study the problem by, electrochemical methods and by exposing model condensers at a variety of bower station sites ., Improved results have been reported, using tin. brasses , or special, tin bronzes. . Pretreatment with sodium dimethyldithiOcarbamate is reported to give protective films that will withstand the action of polluted waters , though the method would be economic only in special circurtistapcies., , , . ... 

Concerning the M=Co, bond, most of the reported examples result from inter- or intramolecular additions of anionic nucleophiles containing at least two reactive heteroatoms. Thus, sodium dimethyldithiocarbamate was found to react with the cationic allenylidene [RuTp(=C=C=CPh2)(PPh3)2] [PFg] (76) to generate the alle-nyl-metallacycle 77 (Scheme 26) as the result of the nucleophilic addition of one of the sulfur atoms at the Cq, carbon and subsequent coordination of the second sulfur to the ruthenium center, with concomitant release of a triphenylphosphine ligand [282]. Complex 77 could also be synthesized by treatment of the neutral derivative... 

Sodium dimethyldithiocarbamate hydrate [128-04-1] M 143.2, m 106-108°, 120-122°. Crystallise from a small volume of H2O, or dissolve in minimum volume of H2O and add cold Me2CO and dry in air. The solution in Me2CO is -50g/400ml. The dihydrate loses H2O on heating at 115° to give the hemi hydrate which decomposes on further heating [IR Canad J Chem. 34 1096 7956]. 

Some metal binding substances, including 8-hydroxyquinoline and sodium dimethyldithiocarbamate, damage the islets of Langerhans and cause diabetes in experimental animals181). 

This reaction sequence was applied to 2-methyl-6-tert-butylphenol, and it was found that bis (3-methyl-4-hydroxy-5-tert-butylbenzyl) sulfide can be produced in an over-all yield greater than 90% in pilot-plant scale reactions. Since the reaction mother liquor, after removal of the product, contains sodium dimethyldithiocarbamate, it can be recycled and neutralized, thus regenerating carbon disulfide and dimethylamine for reuse in preparing the intermediate. In essence, therefore, the over-all reaction consumes only 2,6-dialkylphenol, formaldehyde, and sodium sulfide. The scope of this reaction sequence was demonstrated by preparing bis (3,5-dialky 1-4-hydroxy benzyl) sulfides from a number of phenols ranging from 2,6-dimethylphenol to 2,6-di-ferf-butylphenol (20). 

The l,3-dithiolo[4,5-c]pyridine ring system has been prepared by the reaction of 4-chloro-3,5-dinitropyridine (542) with sodium dimethyldithiocarbamate at 10-20°C in acetone which furnished 7-nitro-l,3-dithiolo[4,5-c]pyridin-2-one (543) (45%) (Equation (49)) <81JHC1581>. 

The l,3-dithiolo[4,5-6]pyridin-2-one (549) has been prepared in a two-step procedure (Scheme 69) (81JHC1581). Treatment of 2-chloro-3,5-dinitropyridine (547) with sodium dimethyldithiocarbamate in anhydrous acetone at 25 °C overnight afforded 3,5-dinitropyridyl-2-dimethyl-dithiocarbamate (548) (82%) as a stable crystalline solid. Heating (548) at reflux in acetone afforded a mixture of compounds from which 6-nitro-l, 3-dithiolo[4,5-h]pyridin-2-one (549) (7%), 2-dimethyl-... 

Tellurium bis[dimethyldithiocarbamate] was obtained as a precipitate when a solution of either tellurium bis[benzenethiosulfonate]5 or tellurium bis[4-methylbenzenethiosulfonate] in chloroform/ethyl acetate5, or tellurium bis[methanethiosulfonate] in bromoform6 was mixed with a solution of sodium dimethyldithiocarbamate in methanol. The yields were quantitative. 

When solutions of tellurium bis[diethyldithiocarbamate] and sodium dimethyldithiocarbamate or sodium pentamethylenedithiocarbamate in methanol are mixed, the less soluble dimethyl or pentamethylene derivative precipitates. To drive the reaction to completion an excess of the sodium dithiocarbamate is required3-4. 

Tellurium bis[thiosulfonates] formed tellurium bis[dimethyldithiocarbamates] when treated with sodium dimethyldithiocarbamate in an organic solvent1-3. 

Tellurium Bis dimethyldithiocarbamatc] Dichloride3 1.79 g (10 mmol) of sodium dimethyldithiocarbamate dihydrate are dissolved in 50 ml of dioxane and 1,34 g (5 mmol) of tellurium tetrachloride dissolved in 100 ml of dioxane are added dropwise at 20°. The mixture is allowed to stand overnight and is then heated to 50° to dissolve the product. The warm mixture is filtered to remove sodium chloride, the filtrate is covered with a layer of petroleum ether, and allowed to stand at 20° for a few days so that the product can crystallize. The yellow crystals are recrystallized from dichloromethane yield 1.18 g (54%) m.p. 165-168°. 

When equimolar amounts of tellurium tetrabromide and sodium dimethyldithiocarbamate were combined in dioxane, bromobis[dimethyldithiocarbamato]tellurium tetrabromo(di-... 

Sodium dimethyldithiocarbamate and sodium 2-raercaptobenzo-thiazole supplied as a 30% solution. Industrial bactericide/ fungicide for textiles and for agriculture. 

Thiostat-B [Uniroyal]. TM for 40% aqueous solution of sodium dimethyldithiocarbamate. 

Derivation Reaction of sodium dimethyldithiocarbamate with a soluble zinc salt in aqueous solution. 

During polymerization, parameters such as temperature, flow rate, and agitation speed must be controlled carefully to get the right conversion. Polymerization is normally allowed to proceed to about 60% conversion in cold polymerization and 70% in hot polymerization before it is stopped with a terminal agent that reacts rapidly with the free radicals. Common terminal agents include sodium dimethyldithiocarbamate and diethyl hydroxylamine. 

Chlorodiphenylbismuthine (10 mmol) was treated with sodium dimethyldithiocarbamate dihydrate (10 mmol) in chloroform (50 ml) for 1 h at 25°C to give phenylbismuth bis(dimethyl-dithiocarbamate) in 84% yield the other product was triphenylbismuthine (64%) [68JOM( 11)627]. 

Amersep . [Drew Ind. Div.] Sodium dimethyldithiocarbamates bloid metals precipitant for plating and metal finishing q>erations. 

Methyl Namate . [R.T. Vanderbilt] Sodium dimethyldithiocarbamate water treatment chemical clarification i ent for wastewater from plating, photo finishing, ore betwficiation processes. 

Reaction between 2,3>5,6-tetrachloropyridine iV-oxide (70) and sodium dimethyldithiocarbamate in acetone forms l-[6-(3 ,5 ,6 -trichloropyrid-2 -ylthio)-3,5-dichloropyrid-2-ylthio]propan-2-one (71) as main product, which is an unusual nucleophilic substitution reaction (Scheme 37) (94TL(35)3147>. 

Potassium dimethyldithiocarbamate Potassium N-hydroxymethyl-N-methyldithiocarbamate Sodium dimethyldithiocarbamate Bis(dithiocarbamate)... 

Wastewater treatment facilities often use dithiocarbamates (DTCs) to remove heavy-metal contaminants (down to ppb levels) as DTCs form stable complexes with a wide variety of transition metals. We therefore investigated the ability of three commercially available DTCs to remove Cu from our process stream sodium dimethyldithiocarbamate (NaDMDTC, 129), sodium diethyldithiocarbamate (NaDEDTC, 130) and ammonium pyrrolidine dithiocarbamate (APDTC, 131). Upon addition of each DTC to the postcoupling reaction mixture, solid precipitates were observed that could easily be... 

Table 11.11 Effect of copper on growth inhibition in Aspergillus niger by sodium dimethyldithiocarbamate (3 days at 24°C). Medium Glucose, salts, and vitamins in glass-distilled water at pH 7...

Cobalt antagonizes the action of sodium dimethyldithiocarbamate on Aspergillus niger ] xsi as it does that of oxine (copper-catalysed) on yeast (p. 472) (Dr A. Kaars Sijpesteijn, personal communication, 1969). [For the copper-activated bactericidal properties of DMDC, see Liebermeister (1950).]... 

Many biologically active chelating agents are unsuited for internal therapy in Man simply because they are not selective enough. One must always proceed cautiously with metal-binding substances because some of them, such as sodium dimethyldithiocarbamate (Kadota and Midorikawa, 1951), injure the islets of Langerhans and thus cause diabetes in experimental animals. The 5-amino-, also the 2-methyl-derivatives of oxine act similarly (Kadota and Abe, 1954). 

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