Plumbanes reactions with

TETRAMETHYL PLUMBANE (75-74-1) Forms explosive mixture with air (flash point 100°F/38°C). Decomposes in water, forming trimethyl salt — diethyl salt — inorganic lead salt. Violent reaction with oxidizers, sulfuryl chloride, potassium permanganate, tetrachlorotrifluoromethylphosphorane. Decomposes in sunlight and elevated temperatures above 212°F/100°C explosion above 608°F/320°C. Strong oxidizers and strong acids cause fire and explosions. Attacks some plastics, rubber, and coatings. More stable than tetraethyllead. 

An exchange reaction between bis(trifluorometbyl)mercury and tetrame-thylleud gives trimethyl(mfluoromethyl)plumbane [23] (equation 17) This plum-bane can also be prepared via the reaction of tetramethyllead with tnfluoromethyl radicals produced in a radio-frequency discharge of C2F [24]... 

The catenation abihty of lead being considerably lower than that of germanium or tin, plumbanes with Pb—Pb bonds are quite difficult to prepare, even though a number of such compounds have been synthesized. As already pointed out, the main method for the preparation of this type of compound is the reaction of an appropriate Grignard reagent with PbCl2159, e.g. 

Plumbanes with particular or bulky substituents can be prepared by several special procedures. For example, tetra-p-nitrophenyllead can be prepared by a disproportionation reaction, induced by hydrazine, of Ar2PbX2, where Ar = p-N(OCgFE, X = Cl, Br, I190 ... 

The X-ray analysis of diphenylbis[tris(trimethylsilyl)germyl]plumbane, obtained from the reaction of diphenyldichlorolead with the appropriate germyllithium (equation 131), showed a staggering of methyl groups around the lead center154. 

Platinum-lead complexes undergo a cleavage of Pt—Pb bond with halogens and halogen acids506,507 510. These reactions are believed to occur through an electrophilic attack on Pt(II) leading to oxidative addition with the formation of a hexa-coordinated Pt(IV) complex. Reductive elimination of a plumbane results in the observed products (equation 193). 

The Pb—S bond in trialkylthiocyanatoplumbanes RsPbSCN was definitely ionic. Klippel obtained the first compound of the EtsPbSCN series by the reaction of Et3PbCl with AgSCN in alcoholic media as early as 1860. However, Saunders and coworkers " (1947, 1949) could not repeat this reaction. They synthesized the same compound by the reaction of EtsPbCl with KSCN in alcohol, and Gihnan and coworkers obtained it by the reaction of Et3PbOOCMe with KSCN in 1953. Ethyl(thioacetoxy)plumbanes Et4 Pb(SCOOMe) with n = 1, 2 were described by Saunders and coworkers in 1951. 

Reactions of trialkylchloroplumbanes with Et AlH or i-BUjAlH at — 60°C yield plumbanes ... 

Reactions of alkyl- or vinyl-substituted plumbanes with PhjSnH result in Pb — C bond cleavage and formation of Pb—H bonds ... 

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