Organolead halides reduction

Organolead hydrides are prepared from the reduction of organolead halides, usually the methyl and ethyl derivatives, by KBH4 or from the reduction of trialkyllead methoxides R3PbOCH3 (R = Me, Et, w-Pr, w-Bu) with B2H6. 

Because of the lower metal-carbon and metal-hydrogen bond strength, organolead hydrides are particularly unstable species and represent the least stable of those of the group 14 elements. Triorganolead hydrides are obtained at low temperatures by reduction of the halides with LiAlH4 (equation 45), but they decompose at 0 °C. 

---