MePb and PhPb readily transfer methyl or phenyl groups to an equivalent molar ratio of tin(iv) chlorides in the order SnCl > MeSnCl > MeSnCl > MeSnCl, often in a selective manner. MePbCl and PhPbCl specifically transfer a single methyl/phenyl group under the same reaction conditions to produce recovered yields in >75%. Specific transfer of 2 methyl groups from PbMe can be achieved at elevated temperatures and/or a 2 : 1 molar ratio Pb : Sn.
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