00:01
Okay, we have conversion of an alcohol, specifically a, well, one thing that's worth noting is that this is not a stereo center.
00:18
If this is a methyl group and this is a methyl group, then effectively there is no difference between the molecule that i've drawn there or that you've drawn.
00:31
And if i had drawn it with a wedge here, right? because if you've got two of the same functional group, then you no longer have stereochemistry.
00:40
So a more appropriate way to draw this molecule might be to leave out the stereochemistry altogether, like so.
00:49
Nevertheless, if this was an oversight and this is meant to be an ethyl or this is some other group, we can go about this as hopefully were maintaining the stereochemistry, just for the purposes of meeting what may have been the intention of this question.
01:06
So the question is, how do you convert an alcohol into an ethyxide while maintaining the relative stereochemistry? and so there's two ways to do that.
01:22
The first way is to treat the alcohol with sodium hydride, which will act as a base to deprotonate the alcohol.
01:36
And then this can act as a nucleophile upon, say, an ethyl bromide, right, to do an sn2 reaction and convert the alcoxide into an athoxide while maintaining the relative stereochemistry...