Answer
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Hint : The ozonolysis reaction is the reaction in which the three atoms of oxygen attack a saturated and the unsaturated bonds present together to totally break and they have consequent oxygen attached to the. This reaction is usually used to break chains.
Complete Step By Step Answer:
Now we are given that only $ C{H_3}COC{H_2}C{H_2}C{H_2}C{H_2}C{H_2}CHO $ is the only compound to be formed out of the ozonolysis of the compound C.
For the existence of just one product after the ozonolysis and subsequent treatment with zinc and acetic acid the product C which goes under the above-mentioned reactions has to be a cyclic compound and also the hydrogenation of C Yields C with the same formula so, it confirms the cyclic nature of the compound.
Now we need to know what type of cyclic compound is it because on ozonolysis of the cyclic compound we get $ C{H_3}COC{H_2}C{H_2}C{H_2}C{H_2}C{H_2}CHO $ which has one keto compound and one aldehyde group. Now for the keto group to form we need the unsaturated carbon to be a third-degree carbon, which is the carbon is attached to three carbons other than hydrogen, while for the aldehyde group we need the carbon to be a second-degree carbon, that is the carbon is attached to two carbons other than the hydrogen.
Option A is discarded because of it being a straight chain.
Option B is discarded because the carbon across the double bond is both third degree.
Option C is discarded because both the unsaturated carbon in the ring is second degree carbon.
Option D is the correct option because one of the unsaturated carbons is second degree while the other is third degree which on ozonolysis gives $ C{H_3}COC{H_2}C{H_2}C{H_2}C{H_2}C{H_2}CHO $ .
Note :
Catalytic hydrogenation of a cyclic compound doesn’t take place for various reasons. One of the reasons that the reaction doesn’t take place is due to the geometry of the cyclic compound which doesn’t give the space to hydrogen to attack and also the cyclic double bonds are more stable and have more tension between the bonds.
Complete Step By Step Answer:
Now we are given that only $ C{H_3}COC{H_2}C{H_2}C{H_2}C{H_2}C{H_2}CHO $ is the only compound to be formed out of the ozonolysis of the compound C.
For the existence of just one product after the ozonolysis and subsequent treatment with zinc and acetic acid the product C which goes under the above-mentioned reactions has to be a cyclic compound and also the hydrogenation of C Yields C with the same formula so, it confirms the cyclic nature of the compound.
Now we need to know what type of cyclic compound is it because on ozonolysis of the cyclic compound we get $ C{H_3}COC{H_2}C{H_2}C{H_2}C{H_2}C{H_2}CHO $ which has one keto compound and one aldehyde group. Now for the keto group to form we need the unsaturated carbon to be a third-degree carbon, which is the carbon is attached to three carbons other than hydrogen, while for the aldehyde group we need the carbon to be a second-degree carbon, that is the carbon is attached to two carbons other than the hydrogen.
Option A is discarded because of it being a straight chain.
Option B is discarded because the carbon across the double bond is both third degree.
Option C is discarded because both the unsaturated carbon in the ring is second degree carbon.
Option D is the correct option because one of the unsaturated carbons is second degree while the other is third degree which on ozonolysis gives $ C{H_3}COC{H_2}C{H_2}C{H_2}C{H_2}C{H_2}CHO $ .
Note :
Catalytic hydrogenation of a cyclic compound doesn’t take place for various reasons. One of the reasons that the reaction doesn’t take place is due to the geometry of the cyclic compound which doesn’t give the space to hydrogen to attack and also the cyclic double bonds are more stable and have more tension between the bonds.
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