Publications by authors named "Maia C Murphy"

Palladium-catalyzed coupling of 4,5-dibromo-2,7,9,9-tetramethylacridan with two equivalents of 1,3-diisopropylimidazolin-2-imine afforded 4,5-bis(1,3-diisopropylimidazolin-2-imino)-2,7,9,9-tetramethylacridan, H[AII]. Reaction of the H[AII] pro-ligand with one equivalent of [M(CHSiMe)(THF)] (M = Y or Sc) yielded the base-free neutral dialkyl complexes [(AII)M(CHSiMe)] {M = Y (1) and Sc (2)}. The rigid AII pincer ligand affords a similar steric profile to the previously reported XA pincer ligand, but is monoanionic rather than dianionic.

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This investigation examines the reactivity of phosphinoboronate esters Ph2PBpin (pin = 1,2-O2C2Me4) and Ph2PBcat (cat = 1,2-O2C6H4), as well as other phosphinoboron species, with various aryl and aliphatic acyl chlorides. These reactions proceed smoothly to give acyl phosphines of the type RC(O)PR'2 along with loss of a boron-chloride compound. In some cases, a second equivalent of the phosphinoboron species can add to the C[double bond, length as m-dash]O double bond at elevated temperatures to give the corresponding diphosphines RC(OBR''2)(PR'2)2.

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