DIBUTYLTIN THIOGLYCOLATE

The masterbatches were prepared by mixing in a Henschel mixer. Typically, the ingredients were mixed four to six minutes at 2600 rpm, and a final mixing temperature of 150°-60° C was reached. b Dibutyltin thioglycollate... 

Mercaptides are unchallenged as the ligand of choice for the other entities bonded to the tin, but carboxylates can also be used. Whereas a variety of mercaptans are used, the thioglycolic acid derivatives remain the largest single mercaptan. Dibutyltin bis(isooctyl thioglycolate) [25168-24-5] and butyltin tris(isooctyl thioglycolate) [25852-70A] are two common examples. These materials are produced by the reaction of the appropriate alkyl tin chloride or oxide, and the mercaptan. 

Metal chelates of 8-hydroxyquinoline such as (111) with photoconductive properties are reported to be useful in electrophotographic systems.233 The incorporation of a tin complex into a photo-conductive zinc oxide layer is stated to reduce dark decay . In other words, the electrostatic charge applied to the photoconductor has a longer lifetime. Two of the complexes disclosed for this application are (112) and (113). These compounds are prepared from dibutyltin oxide by reaction with 2-mercaptopropionic add and thioglycolic acid, respectively 234... 

ETHYLHEXYLOXYCARBONYLMETHYLTHIO)DIBUTYL STANNANE BIS(2-ETHYLHEXYLTHIOGLYCOLATE)-DIBUTYLTIN DI-n-BUTYLTIN DI-2-ETHYLHEXYL-THIOGLYCOLATE DI-n-BUTYL-ZINN DI-2-AETHYLHEXYL THIOGLYKOLAT (GERMAN)... 

Our attention turned next to a widely used type of commercial stabilizer, dibutyltin di-isooctylthioglycolate. The ligand exchange reaction in the dibutyltin di-isooctylthiogylcolate/dibutyltin dichloride system was studied by both JH and 18C NMR. In the experiments the resonance of the methylene group in the thioglycolate moiety (-S-CH2-COO-) was used to follow the reaction. When Compounds 7 and S (Table III, Experiments 6, 7, and 8) were mixed at 25°C in deutero-... 

Analyses of the -decoupled 13C NMR spectrum of the commercial sample of dibutyltin di-isooctylthioglycolate used in this study indicates that its thioglycolate precursor is produced from a mixture of C8 aliphatic alcohols and thioglycolic acid (HSCH2COOH). Consequently, the aliphatic portion of its 13C spectrum (0-60 ppm) is extremely complex. However, only one carbonyl carbon resonance is present (line width at half height = 4.7 Hz), and its chemical shift (173.9 ppm) is separated widely from those of the aliphatic carbons. The carbonyl group in these compounds apparently is not subject to the larger substituent effects well-documented for alkanes (II) and other classes of compounds. Thus, the carbonyl carbon resonance was used to monitor the reaction. 

Dibutyltin diisooctylthioglycollate. See Dibutyltin bisisooctyl thioglycolate Dibutyltin dilaurate... 

N,N,N, N -Tetramethyl-1,3-butanediamine catalyst, high-resilience flexible foam Dibutyltin bisisooctyl thioglycolate Dioctyltin diisooctylthioglycollate catalyst, hydration Silver... 

Dibutyltin bisisooctyl thioglycolate catalyst, rocket propellants Ferrocene catalyst, rubber... 

Dibutyltin bis(2-ethylhexyl mercaptoacetate) Dibutyltin bisisooctyl thioglycolate... 

Good samples of dialkyltin dichlorides were isolated by this method from mixtures of tin stabilisers with diisooctyl phthalate and tritolyl phosphate the dialkyltin groups have been identified in dibutyl tin dinonylmaleate, dioctyltin dilaurate, dibutyltin dinonylthioglycollate and dioctyltin thioglycollate. 

Dibutyltin bis(2-ethyl hexyl) thioglycollate Solvent extraction, TLC [32, 86-88]... 

In the literature the toxicity of certain organotin stabilizers, as well as the impleasant odor characteristic of sulfur-containing compounds, are noted. There are data [216, 244] that dialkylstannane derivatives with alkyl radicals containing eight carbon atoms in the chain are nontoxic, but are somewhat inferior to dibutyltin derivatives in effectiveness. The mercaptide based on dioctyltin and the ester of thioglycolic acid, possessing the composition ... 

Tin stabihzers are predominantly used for rigid PVC. These consist of mixtures of mono- and dialkyltin(IV) chemicals with other labile hgands. They have two major types of labile ligands car-boxylate and alkyltluoglycolate. Stabihzation action comes because the labile ligands can be substituted onto the PVC chain with transfer of a labile chloride to the tin complex. The first major tin stabihzer was dibutyltin isooctyl thioglycolate, but today octyl, butyl, and methyl tins are used. 

Dibutyltin Bis(i-octyl thioglycolate) SnC28Hse04S2 Bu2Sn(SCH2C02C8HiY-i)2 Synth. By rxn. of Bu2SnCl2 2H2NCH2Ph with i-C8Hxy02CCH2SH in hydrocarbon (1702). 

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