Chiral Birch reduced tertiary phosphines: precursors to asymmetric 1,2-cyclohexenebis(tertiary phosphines)

Michelle Bulbrook, Minghui Chu, Karen Deane, Roy J. Doyle, Justina Hinc, Charlotte Peterson, Geoffrey Salem, Nadia Thorman, Anthony C. Willis

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The first examples of an optically active Birch reduced tertiary phosphine, viz. (R(P))-(cyclohexa-2,5-dienyl)(3-pentyl)phenylphosphine, and successful hydrophosphination of the related racemic ligand (+/-)-(cyclohexa-2,5-dienyl)(2-propyl)phenylphosphine with PHPh(2) in the presence of KOBu(t) in thf to give a 1,2-cyclohexenebis(tertiary phosphine), viz. (+/-)-1,2-C(6)H(8)(PPh(2))(PPhPr(i)), are described; as confirmed by crystal structure determinations of [SP-4-4-(S(P),S)]-chloro[(cyclohexa-2,5-dienyl)(3-pentyl) phenylphosphine][2{1-(dimethylamino)ethyl}phenyl-C,N]palladium(II) and [SP-4-3-(+/-)]-dimethyl[(1-diphenylphosphino)(2-isopropyl-phenylphosphino)cyclohexene]platinum(II).

Original languageEnglish
Pages (from-to)8878-8881
Number of pages4
JournalDalton Transactions
Volume39
Issue number38
DOIs
Publication statusPublished - 2010
Externally publishedYes

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