Alcohols 2 and 318 (X = OH) were prepared from the acetates (see above) or directly from acetoxymercuration following the standard p r o c e d~e '~ in 55% yeld; the alcohols (3:2 = 5050) were separated on a alumina (neutral) column (200 cm/3 cm, with dichloromethane): l H NMR [2, X = OH] 0.97 (2 Me), 4.13 ppm, [3, X = OH] 0.90, 0.97 (Me), 3.63 ppm.
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ChemInform Abstract Methylphosphonic difluoride (I) undergoes an exothermic reaction with the tetralkoxysilanes (II), yielding the alkyl methylphosphonofluoridates (III), together with the dialkyl methylphosphonate (IVa) and silicon tetrafluoride (V). The reaction is accelerated by the addition of water.
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