Abstract

In the presence of imidazole as a catalyst, silanethiols R 3SiSH react by addition with aldehydes and with ketones that carry electron-withdrawing substituents to give α-siloxyalkanethiols R 1R 2C(SH)OSiR 3. Diastereoselective addition of a silanethiol to an enantiopure aldehyde or ketone provides a convenient route to a homochiral α-siloxyalkanethiol R 1R 2C*(SH)OSiR 3.

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