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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: CharlotteBM on October 02, 2014, 01:21:50 PM

Title: Synthesis of 1,1dimethoxypropane
Post by: CharlotteBM on October 02, 2014, 01:21:50 PM
Hi!
Could any of you wise people help me, as I have used an unreasonably long time trying to figure out how to make 1,1dimethoxypropane from propyne.

My only suggestion would be to use H2 and Lindlar catalyst to make an alkene and then acid catalysed addition of an alcohol - but I am pretty sure that is not correct!!

Thanks in advance!
Title: Re: Synthesis of 1,1dimethoxypropane
Post by: sjb on October 02, 2014, 02:24:47 PM
What functional group(s) does your product have?
Title: Re: Synthesis of 1,1dimethoxypropane
Post by: CharlotteBM on October 03, 2014, 12:08:26 AM
Quote from: sjb on October 02, 2014, 02:24:47 PM
What functional group(s) does your product have?

Only the two -OCH3 groups
Title: Re: Synthesis of 1,1dimethoxypropane
Post by: sjb on October 03, 2014, 02:14:19 PM
Quote from: CharlotteBM on October 03, 2014, 12:08:26 AM
Quote from: sjb on October 02, 2014, 02:24:47 PM
What functional group(s) does your product have?

Only the two -OCH3 groups

So, like this? http://en.wikipedia.org/w/index.php?title=Acetal&oldid=611192918
Title: Re: Synthesis of 1,1dimethoxypropane
Post by: Babcock_Hall on October 03, 2014, 02:44:29 PM
Sometimes it is advantageous to work a synthesis problem backwards.
Title: Re: Synthesis of 1,1dimethoxypropane
Post by: CharlotteBM on October 06, 2014, 12:36:26 AM
Quote from: sjb on October 03, 2014, 02:14:19 PM
Quote from: CharlotteBM on October 03, 2014, 12:08:26 AM
Quote from: sjb on October 02, 2014, 02:24:47 PM
What functional group(s) does your product have?

Only the two -OCH3 groups

So, like this? http://en.wikipedia.org/w/index.php?title=Acetal&oldid=611192918

Yes thank you!! I see it now