B(C 6F 5) 3-catalyzed silylation versus reduction of phosphonic and phosphinic esters with hydrosilanes

HSiR 3/cat-B(C 6F) 3 induced dealkylation or reduction of esters of phosphorus at 20°C. A specific conversion to silylesters occurred by reaction with tertiary silanes. In contrast, free phosphines were observed in the reaction with mono- or disubstituted silanes. A mechanism was proposed to rationa...

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Bibliographic Details
Published inTetrahedron letters Vol. 43; no. 32; pp. 5569 - 5571
Main Authors Denis, Jean-Marc, Forintos, Henrietta, Szelke, Helga, Keglevich, György
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 05.08.2002
Subjects
arylborane
homogeneous catalysis
hydrosilane
Lewis acidity
reduction
transesterification
Lewis acidity
hydrosilane
homogeneous catalysis
reduction
transesterification
arylborane
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Summary:HSiR 3/cat-B(C 6F) 3 induced dealkylation or reduction of esters of phosphorus at 20°C. A specific conversion to silylesters occurred by reaction with tertiary silanes. In contrast, free phosphines were observed in the reaction with mono- or disubstituted silanes. A mechanism was proposed to rationalize these results. Graphic
ISSN:0040-4039
1873-3581
DOI:10.1016/S0040-4039(02)01161-9