Synthesis of a trans-chelating chiral di
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Ryoichi Kuwano; Takashi Uemura; Makoto Saitoh; Yoshihiko Ito
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Article
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1999
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Elsevier Science
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French
โ 238 KB
Optically active diphosphine (S,S)-2,2"-bis[(diethylphosphino)methyl]-1,1"-biferrocene (abbreviated to (S,S)-EtTRAP-H) was synthesized from ferrocenyloxazoline derived from L-valinol in 47% overall yield. The new chiral ligand, (S,S)-EtTRAP-H, which coordinates to a rhodium atom in a trans-ehelating