Plumbane acids—

Enantioenriched a-alkoxyorganolead compounds have been prepared through lithiation of stannane precursors and trapping of the lithiated species with a triorganolead halide (equation 35)75. In the presence of TiCU, these plumbanes add to aldehydes to afford monoprotected syn- 1,2-diols. The use of BF3OEt2 as a Lewis acid promoter leads mainly to the anti adducts (Table 13)70. 

Davidson and coworkers437 synthesized diphenyl(diorganylthio)plumbanes Ph2Pb(SR)2 by condensation of Ph2PbX2 (X = Cl, Br) with RSH (R = Aik, Ar) in benzene in the presence of Et3N or Py as an acceptor of the hydrohahc acids. These compounds appeared to be unstable and decomposed by heating according to equation 28. 

Plumbane (PbH4) is said to be formed in traces when Mg—Pb alloys are hydrolyzed by acid or when Pb2+ salts are reduced cathodically, but its existence is doubtful.28... 

Platinum-lead complexes undergo a cleavage of Pt—Pb bond with halogens and halogen acids ° ° °. 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). 

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. 

Trimethyl(nitrato-0)germanium, Ge-00029 TrimethyI(nitrato-0)stannane, Sn-00037 Trimethylnitrooxygermane, see Ge-00029 Trimethyl(nitrooxy)stannane, see Sn-00037 Trimethyl(pentafluorophenyl)lead, see Pb-00088 Trimethyl(pentafluorophenyl)plumbane, Pb-00088 Trimethyl (pentafluorophenyl)stannane, Sn-00178 Trimethyl(2,4-pentanedianato-0,0 )tin, Sn-00157 Trimethyl(perchlorato)stannane, Sn-00032 Trimethyl(phenylethynyl)germane, Ge-00139 Trimethyl(phenylethynyl)plumbane, Pb-00101 Trimethylphenylgermane, Ge-00110 Trimethyl(phenylselenyl)stannane, Sn-00182 T rimethyl [ (pheny lsulfonyl)oxy] stannane, Sn-00180 T rimethyl(phenyltelluro)stannane, Sn-00183 Trimethyl(phenylthio)germane, Ge-00111 T rimethyl (phenylthio)stannane, Sn-00181 Trimethylphosphinogermane, see Ge-00033 >Trimethylplumbane, Pb-00019 Trimethylplumbyl, Pb-00017 (Trimethylplumbyl)acetic acid, Pb-00040 (Trimethylplumbyl)bis(trimethylsilyl)amine, Pb-00091 (Trimethylplumbyl)(cyclopentadienyl)dicarbonyliron, 5 Pb-00096... 

---