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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: cokalsM on February 28, 2011, 07:26:30 PM

Title: Stereocenters
Post by: cokalsM on February 28, 2011, 07:26:30 PM

Why is the starred carbon a stereocenter?

(https://www.chemicalforums.com/proxy.php?request=http%3A%2F%2Fimg16.imageshack.us%2Fimg16%2F2855%2Fvitamink1.jpg&hash=77e221918cb0931f4ad6803f2f290f43dd3446be) (http://img16.imageshack.us/i/vitamink1.jpg/)

To my understanding, a stereocenter is a carbon with 4 nonidentical substituents. I've been researching this and also found a definition stating a stereocenter where the interchange of two attached groups gives a stereoisomer. I'm not sure how to identify this.

Can anyone help?

Thanks so much

Title: Re: Stereocenters
Post by: MissPhosgene on February 28, 2011, 08:14:03 PM

It has E/Z isomerism.

Title: Re: Stereocenters
Post by: kreisler on March 01, 2011, 08:57:32 AM

what is a  starred carbon?? give me an example?