Beilstein J. Org. Chem.2008,4, No. 27, doi:10.3762/bjoc.4.27
heating for 24 h at 100 °C (Table 3, Runs 4–8). In the presence of 4 mol% of ethyl bromide, the dehydrogenation was slightly slower compared with EtI, and a small amount of Et3SiH was still found. Without EtI, the dehydrocoupling was sluggish and 81% of Et3SiH were detected even being heated for 24 h at
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Graphical Abstract
Scheme 1:
Dehydrogenative silyl ester synthesis with Ru3(CO)12/EtI.