[andeau]

Hello everyone,
I need your help with a mechanism of a synthesis exercise I have to solve:

Starting from a tertiary alcohol and using Et₃SiH with BF₃-OEt₂ in dichloromethane I am obtaining the alkane by eliminating hydroxyl group.

I have thought that maybe, the boron trifluoride diethyl etherate as a Lewis acid would remove the H from the silane leaving a negative charge on Si, and this one would bond the OH group.
Then the OH would be removed leaving a negative charge on the tertiary C, then the negative charge would bond the H from another molecule of silane, creating the alkane.

Do you think my mechanism could work, or did I make some mistakes?

Thank you in advance for any answer

[Babcock_Hall]

You are postulating that a Lewis acid acts as a base.