1.

An alkene (A) on ozonolysis gives propanone and aldehyde (B). When (B) is oxidised (C) is obtained. (C) is treated with Bry/P gives (D) which on hydrolysis gives (E). When propanone is treated with HCN followed by hydrolysis gives (F). Identify A, B, C, D and E and F.

Answer»

Solution :(i)2 - methyl - but - 2 - ene (A) on OZONOLYSIS GIVES propanone and acetaldehyde (B)

(ii) Acetaldehyde (B) is oxidised to give acetic acid (C), which on further TREATED with Br /P give monobromo acetyl bromide (D) which on hydrolysis gives monobromo acetic acid (E).

(iii) Propanone is treated with HCN followed by hydrolysis to gives 2 - methyl - 2 - hydorxy PROPANOIC acid (F)


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