How would you draw the product of the hydrogenation of ethyne?
1 Answer
Nov 16, 2015
There is no specific reaction mentioned, so I'll list all the ones that are relevant.
The highlighted hydrogens are the ones added onto the alkyne.
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The first one you learned, hydrogen with palladium over carbon, goes all the way to alkane.
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You can tell that hydrogen with Lindlar's Catalyst stops the hydrogenation at the cis-alkene.
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The sodium/ammonia radical reaction stops the hydrogenation at the trans-alkene.
