Diphenyltin dichloride

Dithiastannacyclopentanes and dithiastannacyclohexanes have been obtained by treating diphenyltin dichloride with the appropriate lead dithiolates (230), e.g.,... 

The direct and indirect assessment of the aneuploidy-inducing potency of a number of organotin compounds was reported by Jensen et al. (1991a). The effects of dimethyltin dichloride, diphenyltin dichloride, trimethyltin chloride, tributyltin chloride, and triphenyl-tin chloride at 10 -10 mol/1 on chromosomal contractions in cultures of human peripheral lymphocytes were investigated. Diphenyltin dichloride, trimethyltin chloride, tributyltin chloride, and triphenyl-tin chloride appeared to be very strong inducers of chromosomal supercontraction, indicating that these compounds induce aneuploidy, probably by affecting... 

Figure 1. IR spectra of condensation product of cotton with (A) diphenyltin dichloride and (B) dibutyltin dichloride...

Figure 2. TGA thermograms of products from dipropyltin dichloride (-----), tripropyltin dichloride ( ), dioctyltin dichloride (A/A/J, dibutyltin dichloride (-), diphenyltin dichloride (----------), and cotton itself (- -) at a heating rate of 20°C/min in air...

A derivative of 4-methylene-l,3,2-dithiastannetane 72 was prepared by reaction of diphenyltin dichloride with the dilithium salt of 2,2-diphenylethanedithioic acid (Scheme 39) <1996CB663>. A similar synthetic approach has been used for the preparation of 4-methylene-l,3,2-dithiagermetane 21 <2004AXEm357> and platinum complexes with cyanodithioimidocarbonate <2004JCD369>. 

The halide bridging still persists in diaUcyltin dichlorides and dibromides, but is somewhat weaker and is of an asymmetric natme, either as in (20) or (21). Diphenyltin dichloride and methylphenyltin dichloride have weak tetrameric associated structures the two terminal tin atoms are tetracoordinate, with the middle two tin atoms being hexacoordinate. Dicy-clohexyltin dichloride has essentially a one-dimensional polymeric structure with a five-coordinate tin atom, but with an additional weak tin chlorine interaction (22). Both bis(2-biphenylyl)tin dichloride and 5,5-dichloro-10,ll-dUiydrodibenzo[l ,/]stannepin (23) are monomeric in the sohd... 

A solution of 3.5 g. (0.0096 mol) thallium (I) benzoyl-acetonate in 20 ml. of benzene is mixed with 1.64 g. (0.0048 mol) of diphenyltin dichloride in 10 ml. of benzene. Thallium (I) chloride precipitates immediately and is separated by filtration. The product is most easily collected by evaporating the solvent. The yield is quantitative. For recrystallization the product is dissolved in 50 ml. of benzene, and 50 ml. petroleum ether (b.p. 90 to 110°) is added. The yield is 1.4 g. (50%). (The checkers report that it is necessary to add another volume of petroleum ether and to hold the solution at least overnight at 10° to obtain 50% yield.) The rest of the crystals can be recovered by partial evaporation of the solvent. The pure product melts with decomposition at 181°. (The checkers report 185.5 to 187°.) Anal. Calcd. for C32H2804Sn C, 64.52 H, 4.74. Found C, 65.19 H, 4.93. 

Tin-phenyl cleavage of diphenyltin dichloride, which occurs readily at 180-200°C. in the presence of 8-quinolinol or other chelating agents (Equation 3), again is probably an example of a borderline of Types II and III. 

The reagent is prepared in ether solution by reduction of diphenyltin dichloride (Metal and Thermit Corp.) with lithium aluminum hydride. It can be isolated by crystallization from petroleum ether-methylene chloride, but solutions in benzene are only moderately stable at room temperature. 

It has been shown by Sutton et al that Vcsn couplings ( = 1-4) measured in isotopically enriched dibutyltin dichloride, dibutyltin di-iodide, tributyltin chloride, tributyltin iodide, diphenyltin dichloride, triphenyltin chloride and triphenyltin iodide are solvent dependent. 

Figure 7.3. Separation of organotin compounds on a 10 cm x 1 mm I.D. column packed with Deltabond Methyl with supercritical fluid carbon dioxide saturated with formic acid as mobile phase. The separation was obtained at 60°C using pressure programming 0.5 min hold at 90 atm. Then programmed at 4 atm / min to 150 atm where the program rate was increased to 10 atm / min to 300 atm. Peak identification 1 = dibutyltin dichloride 2 = tributyltin chloride 3 = tetrabutyltin 4 = diphenyltin dichloride 5 = dicyclohexyltin dichloride 6 = bis(tributyltin) oxide 7 = triphenyltin chloride 8 = tricyclohexyltin chloride 9 = tetraphenyltin 10 = tetracyclohexyltin 11 = bis(triphenyltin) oxide and 12 = hexakis(2-methyl-2-phenylpropyl) distannoxane. (From ref. [42] Springer-Verlag)...

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