Diethyl (di-tert-butylphosphino) borane and related compounds: the first stable monomeric tetraalkyl phosphinoborane

TJ Groshens, KT Higa, R Nissan, RJ Butcher…

Index: Groshens, Thomas J.; Higa, Kelvin T.; Nissan, Robin; Butcher, Raymond J.; Freyer, Alan J. Organometallics, 1993 , vol. 12, p. 2904 - 2910

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Citation Number: 21

Abstract

Four new phosphinoborane compounds were prepared and characterized by'H, 13C, 31P, and llB NMR spectroscopy and elemental analysis. Monomeric EtzBP (t-Bu) z was isolated as a volatile yellow liquid and [Me2BP (t-Bu) 2] 2 as a colorless solid using salt elimination reactions. The colorless dimeric solids [MezBP (SiMe3) zI2 and [Et~ BP (SiMe3) 2] 2 were prepared via trimethylsilyl halide elimination reactions. The dimeric compounds dissociate ...