oxidation of C=C

hoay SG

the oxidation of alkene by hot KMnO4 gives different products depending upon the groups joined to C=C bonds. ethene gives methanal followed by methanoic acid then finally CO2 and H2O.

What would the products in the following cases.

(i) CH2=C=CH2

(ii) benzene ring joined with 4-memebered carbon (-CH2-CH2-CH2-CH2) or 3-memembered ring( alicyclic)

UltimaOnline SG

the oxidation of alkene by hot KMnO4 gives different products depending upon the groups joined to C=C bonds. ethene gives methanal followed by methanoic acid then finally CO2 and H2O.

What would the products in the following cases.

(i) CH2=C=CH2

(ii) benzene ring joined with 4-memebered carbon (-CH2-CH2-CH2-CH2) or 3-memembered ring( alicyclic)

With prolonged heating with conc. KMnO4/H+, the final products are

i) CO2 (3 moles of)

ii) benzoic acid or phthalic acid respectively

hoay SG

https://www.google.com.pk/search?q=cyclohexane+joined+to+benzene&dcr=0&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiGh8S6hoDZAhUQKewKHZFOCDsQ_AUICigB&biw=1242&bih=579#imgrc=uVxVENorm2isDM::

I am talking about the last compound in the picture ,,,,,,,,,,benzene joined to CYCLOBUTANE ring .............Will it produce the same benzoic acid on oxidation??

hoay SG

https://www.google.com.pk/search?q=cyclohexane+joined+to+benzene&dcr=0&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiGh8S6hoDZAhUQKewKHZFOCDsQ_AUICigB&biw=1242&bih=579#imgrc=uVxVENorm2isDM::

I am talking about the last compound in the picture ,,,,,,,,,,benzene joined to CYCLOBUTANE ring .............Will it produce the same benzoic acid on oxidation??

UltimaOnline SG

https://www.google.com.pk/search?q=cyclohexane+joined+to+benzene&dcr=0&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiGh8S6hoDZAhUQKewKHZFOCDsQ_AUICigB&biw=1242&bih=579#imgrc=uVxVENorm2isDM::

I am talking about the last compound in the picture ,,,,,,,,,,benzene joined to CYCLOBUTANE ring .............Will it produce the same benzoic acid on oxidation??

It will produce phthalic acid.

hoay SG

thank you.

one more oxidation query....

In Iodoform test If an organic compound conatin both the groups then what would be the product of this reaction. such as in CH3-CO-CH(OH)CH3.