1.

Complete the following:

Answer»

Solution :`(B)IMPLIES Me (C-=C)_(3) CHOHCH=CH_(2)`,
`(C )implies Me (C-=C)_(3)CH=CHCH_(2)OH`.
`NaBH_(4)` reduces only `(CO)` group and the resulting alcohol undergoes ALLYLIC rearrangement to give a more stable alcohol (in which there is increased coniugating), e.g.,
`Me(C-=C)_(3) CHOHCH=CH_(2)`
`{:darr{:((i),H^(o+),,,),((ii),-H_(2)O,,,):}`

b. Under these conditions, the `(C=C)` bond is reduced preferenitally.

c. Ni is an extremely efficient catalyst for the hydrogenation and reduces both `(C=C)` bond to


e. LAH reduces

to `(-CH_(2)OH)` and also reduces `(C=C)` bond when the `(PH)` group is attached to the beta-position of the `(C=C)` bond.



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