Answer to Question #92709 in Organic Chemistry for Tehila

Question

What relationship exists between the following.
1. CH3COCH2CH3 And CH3C(OH)=CHCH3
2. CH3OCH2CH3 and CH3CH2OCH3
3. CH3CH2COC3H7 and CH3CH2CH2COCH3
4. CH3CH2COOH and CH3COOCH3

Answer 1

1. CH3COCH2CH3 And CH3C(OH)=CHCH3. There are keto-enol-tautomers:keto and enol form of ethyl methyl ketone.

2. CH3OCH2CH3 and CH3CH2OCH3. There is the same substance: ethyl methyl ether.

3. CH3CH2COC3H7 and CH3CH2CH2COCH3. There are homologues: ethyl propyl ketone and methyl propyl ketone.

4. CH3CH2COOH and CH3COOCH3. There are isomers: propionic acid and methyl acetate.