Reactions of Silanes with CO

Terminal alkenes react with CO and trialkylsilane in the presence of transition metal catalysts to give the corresponding silyl enol ethers. Ru3(CO)i2 and Co2(CO)g each show high catalytic activity [114]. Ru3H(CO)n [115] shows moderate catalytic activity with high selectivity for linear isomers (Eq. 11.62). 

The oxidative addition of trialkylsilane to the mthenium carbonyl species 22 gives 23, in which a 1,3-shift of R3Si from the mthenium to the carbonyl oxygen atom 

The reduction of ketoximes to ketimines can be performed with the Ru3(CO)i2 catalyst under CO pressure (Eq. 11.63) [117]. 

The reaction of amidoxime with CO using the Ru3(CO)i2 catalyst gives amidines (Eq. 11.64) [118]. 

This reaction can also be applied to the synthesis of pyrimidines (Eq. 11.65) [118]. 

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