Abstract
Synthesis of 4-Diphenylphosphinoylbut-1-Ene and 4-Diphenylphosphinoylbutane-1, 2-Diol; Their Properties as Inhibitors in the Medium on Api 52x Steel
Lakhdar Sekhri
Abstract:
Prochiral allylic phosphine oxide (6) and 4-diphenylphosphinoylbutane-1, 2-diol (7) were successfully and conveniently prepared. The synthetic methodology was to start with methyl diphenylphosphine oxide (3) which lithiated by n-BuLi at -78°C and then treated with allyl bromide to give prochiral allylic phosphine oxide (6). This prochiral allylic phosphine oxide was treated with OsO4, DHQ2PHAL and NMO in t-BuOH to give the chiral 4-diphenylphosphinoylbutane-1, 2-diol (7). The synthesized products are served as excellent inhibitors in the medium of 15% H2SO4 on API 5L 52X steel.
Keywords:Phosphine oxide; dihydrox; ylation; inhibitors; steel
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