Abstract
A mild method for the synthesis of unsymmetrical bis-alkoxysilanes has been developed. This method utilizes two readily available catalysts (rhodium acetate dimer and 10% palladium on carbon) that, under neutral aprotic conditions and within reasonable time, give very good yields of the product in two steps without need to isolate intermediates.
Key words
hydridosilanes - alkoxysilanes - alcoholysis - unsymmetrical - silyl ketals
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6 Ethyl (2S )-2-[(diphenylsilyl)oxy]propanoate: 1 H NMR (CD2 Cl2 ): δ = 7.71-7.67 (m, 4 H), 7.52-7.39 (m, 6 H), 5.53 (s, 1 H), 4.49 (q, J = 6.8 Hz, 1 H), 4.14 (dq, J = 1, 7.1 Hz, 2 H), 1.50 (d, J = 6.8 Hz, 3 H), 1.23 (t, J = 7.1 Hz, 3 H).
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