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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: Ayoosh on April 30, 2012, 02:30:09 AM

Title: How is 2-Butanone Chiral?
Post by: Ayoosh on April 30, 2012, 02:30:09 AM

OK.... so were just doing  in our class... and I recently bumped into Solomon And Fryle'S ORGANIC CHEMISTRY.

It was mentioned in a section that 2-Butanone is ACHIRAL... well i searched up the internet and found it was not a typo mistake!!!

Question... how can be butanone achiral?... we were taught that if a plane of symmetry is present only then molecule can be called achiral...(it was even mentioned in solomon n fryle book previously)...my prob is i cant find a plane of symetry in 2-butanone which would mean its chiral.... or any such criteria which would make it achiral

Thanks in advance..

Title: Re: How is 2-Butanone Chiral?
Post by: sjb on April 30, 2012, 02:38:03 AM

Quote from: Ayoosh on April 30, 2012, 02:30:09 AM

OK.... so were just doing  in our class... and I recently bumped into Solomon And Fryle'S ORGANIC CHEMISTRY.

It was mentioned in a section that 2-Butanone is ACHIRAL... well i searched up the internet and found it was not a typo mistake!!!

Question... how can be butanone achiral?... we were taught that if a plane of symmetry is present only then molecule can be called achiral...(it was even mentioned in solomon n fryle book previously)...my prob is i cant find a plane of symetry in 2-butanone which would mean its chiral.... or any such criteria which would make it achiral

Thanks in advance..

What is the geometry, individually, of all the atoms in butanone?

Title: Re: How is 2-Butanone Chiral?
Post by: UG on April 30, 2012, 03:10:20 AM

Quote from: Ayoosh on April 30, 2012, 02:30:09 AM

my prob is i cant find a plane of symetry in 2-butanone which would mean its chiral.... or any such criteria which would make it achiral

How about the plane that cuts it in half.

Title: Re: How is 2-Butanone Chiral?
Post by: azmanam on April 30, 2012, 07:22:52 AM

Quote from: UG on April 30, 2012, 03:10:20 AM

How about the plane that cuts it in half.

This.  The plane of the paper is still a plane.