Fixed! Thanks for the spot!
]]>yes, keto-enol tautomerism can be assisted through the use of either acid or base.
]]>In the acid-catalyzed aldol addition, the slow step is attack of the enol on the aldehyde/ketone. But for more information than you probably want, I recommend: https://pubs.acs.org/doi/10.1021/ja01553a056
]]>Thanks for writing!
Noyce studied this: https://pubs.acs.org/doi/10.1021/ja01553a056
and concluded that while the E1 can certainly occur, especially where a relatively stable carbocation that can be formed (e.g. p-MeOC6CH4).the elimination generally goes through the enol. This is also the case for the self-condensation of acetaldehyde. see: https://pubs.acs.org/doi/10.1021/ja01553a056
It might happen to some extent but the product is a hemiacetal, and hemiacetals easily revert to starting materials. So it’s usually a cul-de-sac.
]]>I would double check your starting materials.
]]>