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Topic: Does anybody know what Pyridine Hydrochloride, as a catalyst, does in this rx?  (Read 1658 times)

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Offline Reiha

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Does anybody know what Pyridine Hydrochloride, as a catalyst, does in this rx?
« on: May 02, 2013, 10:40:31 PM »
This is part of a longer rx but I'll just post the part where I'm stuck:



I don't really understand what Pyr.HCl is doing. Could anyone explain the mechanism of this reaction to me? Before the synthesis of dehydroequol.
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Offline Archer

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Re: Does anybody know what Pyridine Hydrochloride, as a catalyst, does in this rx?
« Reply #1 on: May 03, 2013, 01:50:38 AM »
It's not used in catalytic amounts in this reaction. The H+ protonates and the chloride acts as a nucleophile.
« Last Edit: May 03, 2013, 02:17:59 AM by Archer »
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