Abstract
Constant current electrolysis of Ph 2(Me)SiCH 2COOH in methanol under non-Kolbe conditions (carbon anode, low current density) undergoes two competing reactions: decarboxylation and desilylation. The oxidative-decarboxylation process involves both 1e - and 2e - and affords a Kolbe 'dimer' [Ph 2(Me)SiCH 2CH 2Si(Me)Ph 2] and non-Kolbe products of type Ph 2(Me)SiCH 2OCH 3 and Ph 2(Me) SiCH 2OH, respectively, whereas the 1e - desilylation process gives silylated products of type Ph 2(Me)SiOH, Ph 2(Me)SiOCH 3, Ph(Me)Si(OCH 3) 2 and the siloxane Ph 2(Me)SiOSi(Me)Ph 2. The effects of the polarity of the media and temperature on these two pathways have been investigated.
Original language | English |
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Pages (from-to) | 135-139 |
Number of pages | 5 |
Journal | Electrochimica Acta |
Volume | 59 |
DOIs | |
State | Published - 1 Jan 2012 |
Keywords
- Anodic decarboxylation
- Anodic desilylation
- Non-Kolbe products
- α-Silylacetic acid
ASJC Scopus subject areas
- General Chemical Engineering
- Electrochemistry