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The four-step straightforward synthesis of enantiopure (+)- and (-)-2,2',5,5'-tetramethyl-4,4'-bis-(diphenylphoshino)-3,3'-bithiophene (tetraMe-BITIOP), a new C2-symmetry chelating ligand for transition metals, is described, starting from 2,5-dimethylthiophene. The complexes of this electron-rich diphosphine with Ru(II) and Rh(I) were used as catalysts in(More)
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