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Main Group Chemistry. 1:89-98
The phosphorus centers in [Cu{1,2-C6H4(PH2)2}2]CF3SO3 are readily methylated by methyl iodide in the presence of 4 or 8 equiv potassium tert-butoxide to give 1,2-phenylenebis (methylphosphine) or 1,2-phenylenebis(dimethylphosphine), respectively, aft