Question

apply satyzeff rule on 2-chlorobutene and give major product​

Answer 1

Answer:

The two possible product when 2-chlorobutane is treated with alc. KOH are

but-2-ene and but-1-ene

The mechanism is shown in second picture. A nucleophile abstract the the proton followed by leaving of the chloride ion.

Since there are two hydrogens one at carbon 1 and another at carbon number 3.

So base has two options,

but according to saytzeff rule the alkene with highest substitution is formed so but-2-ene is formed.

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