Journal of organometallic chemistry

Synthesis of 1, 2-bis [(diorgano) phosphino] ethanes via Michaelis–Arbuzov type rearrangements

LC Baldwin, MJ Fink

Index: Baldwin, Lawrence C; Fink, Mark J Journal of Organometalic Chemistry, 2002 , vol. 646, # 1-2 p. 230 - 238

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Abstract

A three-step process for the synthesis of the bis (diorganophosphino) ethanes R2PCH2CH2PR2 where R= Et, Ph, iPr, Cy and tBu was examined. In the first step, diorganochlorophosphines were allowed to react with ethylene glycol in the presence of triethylamine at room temperature in THF solution. For R= Ph, iPr and Cy, the bisphosphinites R2POCH2CH2OPR2 were obtained in high yield. For R= Et, the ...