Dithiocarbamate with

In 1891, Miolati (75) confirmed the cyclic formula of Liebermann and Lange by preparing the compound by three new pathways (1) reaction of CS2 on thiohydantoin, (2) condensation of ammonium dithiocarbamate with chloroacetic ester, (3) reaction of HjS on thiocyanoacetic acid. 

During a relatively long period, the condensation of rhodanines with aldehydes was developed, especially by Andreasch s group (78-87). Finally, Holmberg (88, 89) described the best method to obtain rhodanines the condensation of ammonium dithiocarbamate with a sodium or potassium salt of an a-chloro acid. 

Manganese Ethylenebis(thiocarbamate). Maneb [12427-38-2] (C4HgMnN2S (1), is a yellow powder used as a leaf and soil fungicide (see Fungicides, agricultural). Maneb is obtained by treating disodium ethylenebis(dithiocarbamate) with an aqueous solution of maganese(II) sulfate (37). 

The reaction of methyl dithiocarbamates with [Au(QF5)(tht)] leads to the formation of the neutral complexes [Au(C6F5)SC(SMe)NHR] [61], R = p-MeC6H4, o-MeC6H4, p-MeOC6H4 or 3,5-Me2C6H3. The H NMR shows that the dithiocarba-mate is S-coordinated and the IR spectra shows the absorption of the Vjnh)-... 

An interesting phenomenon is the occurrence of dithiocarbamates with copper in mixed oxidation states. 

Craig and co-workers247 reported the synthesis of l-aza-2,4,10-trithiaada-mantane (227) as a by-product in the reaction of ammonium dithiocarbamate with an aqueous solution of chloroacetaldehyde. The same compound is reported to be obtained by the reaction of mercaptoacetaldehyde with ammonia248 and then by the reaction of tri(2,2-bis(ethoxy)ethyl]amine (228) with hydrogen sulfide in the presence of hydrobromic acid.249 The... 

Metal dialkyl dithiocarbamates inhibit the oxidation of hydrocarbons and polymers [25,28,30,76 79]. Like metal dithiophosphates, they are reactive toward hydroperoxides. At room temperature, the reactions of metal dialkyl dithiocarbamates with hydroperoxides occur with an induction period, during which the reaction products are formed that catalyze the breakdown of hydroperoxide [78]. At higher temperatures, the reaction is bimolecular and occurs with the rate v = k[ROOH][inhibitor]. The reaction of hydroperoxide with dialkyl dithiocarbamate is accompanied by the formation of radicals [30,76,78]. The bulk yield of radicals in the reaction of nickel diethyl dithiocarbamate with cumyl hydroperoxide is 0.2 at... 

S-glycofuranosyl dithiocarbamates with 5-nitro-2-pyridyl 2,3,4-tri-O-benzoyl-l-thio-P-D-glucopyranoside as an acceptor gives access to valuable 1,2-ds-linked furanosyl-1-thiopyranosides [498]. Recently, Bogusiak reported that perbenzylated S-benzothiazolyl glycosides of L-arabino, D-ribo and D-xylofuranose can be used as glycosyl donors (Scheme 4.91). ... 

Pt(S2CNMe(Hex))2] and [Pd(S2CNMe(Hex))2] have been synthesized and used as precursors to grow the first TOPO-capped PtS and PdS nanoparticles and thin films of PtS and PdS by the metallo-organic chemical vapor deposition (MOCVD) method [204]. Platinum and palladium chalcogenides find applications in catalysis [205-210] and materials science [211,212]. The synthesis of thiocarbamato complexes of platinum and palladium from reaction of an aqueous solution of ammonium dithiocarbamate with the platinum or palladium salt has been reported by Nakamoto et al. [213]. However... 

The reaction between [MoCl4(NCPr)2] and dithiocarboxylic acids is a general route to the preparation of eight-coordinate [Mo(S2CR)4] complexes.168 The crystal structure of [Mo(S2CPh)4] reveals these compounds to be isostructural with the dithiocarbamates, with a dodecahedral coordination around the molybdenum and average Mo—S distances of 2.475(1) and 2.543(1) A to the two different sulfur sites.170 Cyclic voltammetry has shown that in [Mo(acda)4] (Hacda = 2-aminocyclopent-l-ene-l-dithiocarboxylic acid) the Mo can be reversibly oxidized and reversibly reduced in one-electron processes.171... 

In 1959, it was reported that on mixing silver(I) A.A-dialkyl dithiocarbamates with the corresponding thiuram disulfide, dissolved in benzene or chloroform, the solution immediately turned blue. 8,539 ESR spectra of these solutions showed the formation of paramagnetic d9 Agn complexes. The reaction was explained by the equilibrium expressed in equation (37). 

Sodium dithiocarbamates are similarly converted to aryl dithiocarbamates with polymeric aryliodonium bisulfates 20 derived from styrene (Scheme 41) [116]. The high regioselectivity of C-I bond cleavage in 20 is noteworthy, only trace amounts of iodoarenes [Arl] having been detected in occasional cases . Regioselective conversions of p-phenylenebis(phenyliodonium) ditriflate (21) top-phenylenebis(dithiocarbamates) with dithiocarbamate salts have also been reported (Scheme 41) [117]. 

It is well known that the secondary amines form dithiocarbamates with carbon disulfide, which are important complexing agents in analytical chemistry [84], Therefore, PS-g-PEI was allowed to react with carbon disulfide to obtain a resin with a higher affinity to Hg(II) than the resin with thiol groups [83]. 

Another entry to 1,3-dithiolylium salts starts from 5-vinyl Af,iV-dialkyl dithiocarbamates (239) which are easily obtained by reaction of sodium dithiocarbamates with 1,2-dibromoethane. Treatment of the dithiocarbamates (239) with bromine gives the 1,3-dithiolylium bromides (242) via the intermediates (240) and (241) (73CL867). 

Reaction of sodium dithiocarbamate with an equimolar amount of the chloroacetaldehyde/sodium hydrogen sulfite adduct (110) in dimethyl-formamide at room temperature yields 111 quantitatively. The latter, treated first with concentrated sulfuric acid and then with sodium tetraphenylborate, gives the salt 112 in 86% yield.Under the same conditions, piperi-dinium dithiobenzoate reacts with 110 providing in 64% yield 2-phenyl-l,3-dithiolium tetraphenylborate. ... 

Upon acquisition of the Inter-Ocean pump sampling system, a series of seawater samples was collected from New York Bight at 10 m depth simultaneously with the pump and with Niskin 10-1. samplers with internal rubber closmres. The samples were Altered through 0.4/x Nucleopore filters. One aliquot was frozen for subsequent analysis of nitrate, nitrite, phosphate, and silicate by standard automated techniques. A second aliquot was acidified to pH 1 with siUca-distilled, concentrated nitric acid and was subsequently analyzed by flameless atom reservoir atomic absorption spectrophotometry, both by direct injection (4) and after extraction of the metal pyrollidine dithiocarbamates with methyl isobutyl... 

Derivation Oxidation of diammonium ethylene bis-dithiocarbamate with calcium hypochlorite. 

Alkylated dithiocarbamates with chain lengths C2-C6 are often added... 

Reaction of S-alkyl dithiocarbamates. With amino carboxylic... 

The ring closure reaction of a dithiocarbamate with a a-halo carbonyl compound gives rise to only a five-membered ring (thiazole). It must, however, be kept in mind that, in the ring closure of these substances (aldehydes, ketones, esters and acids) with a dithiocarbazic acid it is in principle possible to obtain 1,3,4-thiadiazine compounds (six-membered rings) as well as 3-amino thiazoles (five-membered rings). 

Desorb sample from charcoal tube and react with pyrrolidine react the resultant dithiocarbamate with copper to form a chelate extract chelate with isoamyl acetate AAS 0.7 pg/m3 70-101% Kneebone and Freiser 1975... 

In an extension of this triazine synthesis, dithiocarbamates 8, rather than amides, can be employed. In this case the corresponding imidium salts are obtained by reaction of the dithiocarbamates with phosgene or chlorine.395 396... 

This includes reactions of the polymer groups with metallic sites on the particle surface that may result in the formation of stable or insoluble compounds through covalent, ionic or coordination bonding. Carboxyl flocculants such as polyacrylic acid and carboxyl-methyl cellulose can chemisorb on the surface of calcite and sphalerite which have calcium or zinc sites on them. Certain flocculants, such as cellulose and starch with xanthate and polyacrylamide with dithiocarbamate with high chemically active groups, have been found to exhibit selective reaction with sulfide minerals. Such complexing polymers have been investigated for their use in selective flocculation processes. 

Dithiocarbamates, with the exception of metham and dazomet, are not directly toxic to plants, but they thin the epidermis of the leaves, making them susceptible in particular to powdery mildew fungi and to mites. 

The importance of alpha-hydrogen is also illustrated by the dithiocarbamates with auxin action, discovered by Van der Kerk et al. (1955). 

Thiadiazine-2,4,6-triones can be prepared by ring closure of A-(aminothiocarbonyl)-dithiocarbamates with ethyl chlorothioformate (see Section 6.18.10.2.3.ii), and by treating 1,3,5-oxadiazine-2,4,6-trione with hydrogen sulfide (see Section 6.18.11.2). Condensation of 1-chloro- or... 

Amine salts, such as those produced from butylamine or piperidine, are also used. A much-used accelerator is bis(dimethylthiocarbamoyl)disulfide (tetramethylthiuramdisulfide), made by the oxidation of the corresponding dithiocarbamate with chlorine or hydrogen peroxide. ... 

Table II. Melting points of dithiocarbamates with different metals...

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