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Topic: How can I balance this equation to find theoretical yield?  (Read 2413 times)

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Offline theanonymous

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How can I balance this equation to find theoretical yield?
« on: March 14, 2013, 10:05:09 AM »
C9H8O + C25H22ClP  :rarrow:NaOH:rarrow: C16H14 + C18H15OP

Offline sjb

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Re: How can I balance this equation to find theoretical yield?
« Reply #1 on: March 14, 2013, 10:41:27 AM »
C9H8O + C25H22ClP  :rarrow:NaOH:rarrow: C16H14 + C18H15OP

It might be a bit easier if you show your structures, or at least some semblance of the reaction you are carrying out (a Wittig? looking at ChemSpider hits for C25H22ClP).

Offline theanonymous

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Re: How can I balance this equation to find theoretical yield?
« Reply #2 on: March 14, 2013, 11:39:19 AM »
C9H8O + C25H22ClP  :rarrow:NaOH:rarrow: C16H14 + C18H15OP

It might be a bit easier if you show your structures, or at least some semblance of the reaction you are carrying out (a Wittig? looking at ChemSpider hits for C25H22ClP).

Yes! Sorry I was away - I keep changing classes!.

Ok so the reaction is.

Cinnamaldehyde + benzyltriphenyl phosphonium chloride ---NaOH--> 1,3 diphenyl-1-,3 butadiene + triphenylphosphine oxide

Offline theanonymous

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Re: How can I balance this equation to find theoretical yield?
« Reply #3 on: March 14, 2013, 11:44:48 AM »

Offline sjb

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Re: How can I balance this equation to find theoretical yield?
« Reply #4 on: March 14, 2013, 01:04:21 PM »
OK, so can you draw the mechanism of this out? How many equivalents of aldehyde do you need per bromide (or vice versa)?

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