How to make 3-pentanone from 2-pentyne
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How to make 3-pentanone from 2-pentyne

[From: ] [author: ] [Date: 11-04-26] [Hit: ]
Hope this helps...good luck!......
Develop a synthesis pathway to to accomplish this task. Please help. I got 2 Pentanone from 2-pentyne but I dont know how to get 3-Pentanone. Thanks

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3-pentanone can be synthesized from 2-pentyne in an acid catalyzed hydration reaction (the intermediate step with the double bond is shown between the 2-pentyne and 3-pentanone):


CH3CH2C -(triple bond) - CCH ---> CH3CH2C(OH) -(double bond) - CHCH3 ---> CH3CH2C -(double bond with the oxygen) - O CH2CH3


Please add H2O (hydrolysis) above the first arrow and H2SO4 (acid) and HgSO4 (catalyst) below the arrow to reflect the acid catalyzed hydrolysis reaction.

(FYI....this reaction also produces 2-pentanone, i.e., the reaction produces 2 ketones.)



Hope this helps...good luck!
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