Ph - CH - CH - C - CH 3 Al OCHMe 23- CH 3- CH - OH CH 3- BPh - CH - CH - CH - CH 3 OH OH 1 NaOl - 2 H -CIf the degree of unsaturation present in compound A is x and that of B is y and C is z- then find the value of x-y-z-

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Standard XII

Chemistry

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Ph - CH = CH ...

Question

If the degree of unsaturation present in compound A is x and that of B is y and C is z, then find the value of x+y+z.

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Solution

Reaction 1: Perkin reaction:

Reaction 2: Meerwein Ponndorf–Verley reduction reaction

Reaction 3: Haloform reaction:

Degree of unsaturation = $\frac{2 C + 2 + N - H - X}{2}$

C = carbon, N = nitrogen, H = hydrogen,
X = halogen.
Degree of unsaturation in A=x= 6
Degree of unsaturation in B=y= 5
Degree of unsaturation in C=z= 6
Hence, $x + y + z = 6 + 5 + 6 = 17$

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