Question:
Write IUPAC names of the products obtained by the ozonolysis of the following compounds : (i) Pent-2-ene (ii) 3,4-Dimethyl-hept-3-ene (iii) 2-Ethylbut-1-ene (iv) 1-Phenylbut-1-ene
Answer:
(i) CH3 CH3 CH = CHCH3 + (O3/CH2Cl2, 196K, Zn/H2O) → CH3 CH2- CH = O + O=CH- CH3
Pent 2 ene Propanal Ethanol
(ii) CH3CH3CH2- CH3C = CCH3- CH2CH3 + (O3/CH2Cl2, 196K, Zn/H2O) → CH3 CH2CH2- CCH3 = O + O=CHCH3- CH3
3,4-Dimethyl-hept-3-en Pentane 2 ene + Butane 2-ene
(iii) CH3CH2 - CH2- CH3CH2 C= CH2 + (O3/CH2Cl2, 196K, Zn/H2O) → (CH3CH2)2-C=O + O=CH2 + O= CH2
2-Ethylbut-1-ene Pentane 3 ene + Methanol
(iv) CH3 CH2 – CH=CH2 – C6H5 +(O3/CH2Cl2, 196K, Zn/H2O) →CH3CH2 CH =O + O=CH-C6H2
1-Phenylbut-1-ene Propanal + Benzyldehyde
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