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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: the_negro_puppy on July 06, 2006, 06:31:44 AM

Title: Urgent Help required!
Post by: the_negro_puppy on July 06, 2006, 06:31:44 AM

Hi guys, its 12 hours to my final exam and i really need help with this question. I have posted this in a previous thread but forgot to add the Br!

I need to complete this synthesis using any reagents in 3 steps or less

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Thanks very much for your help.

Title: Re: Urgent Help required!
Post by: swati on July 06, 2006, 07:21:30 AM

 :) 

1.)  1-bromo-2-cyclohexylethane -----------> vinylcyclohexane
       Dehydrohalogenation using bulky base in DMSO solvent . Using NaOEt in EtOH as solvent will
       give substitution product rather than elimination one.

2.)  vinylcyclohexane ---------------> 1-cyclohexylethane-1,2-diol
       Hydroxylation using following reagents
         (i) Cold aqueous alkaline KMnO₄
                         OR
        (ii) OsO₄ followed by hydrolysis

Title: Re: Urgent Help required!
Post by: the_negro_puppy on July 06, 2006, 07:30:11 AM

Thanks you are a degree saver-literally lol.