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Compare the two methods shown fopr the p...

Compare the two methods shown fopr the preparartion of carboxylic acids:
Method : `RBrunderset("diethyether")overset(Mg)toRMgBr underset(2.H_(3)O^(+))overset(1. CO_(2))toRCO_(2)H`
`Method 2 : RBroverset(NaCN)toRCN underset(Heat)overset(H_(2)O,HCl)toRCO_(2)H`
whixh onr of the following dtatement correctly descibes this conversion ?

A

Both method 1 and method 2 are approrite for carrying out this conversion

B

Neither method 1 nor method 2 is appropriate for carrying out this conversion

C

Mrthod 1 will work well but method 2 is not approate

D

Mrthod 2 will work well , but method 1 is not appropriate

Text Solution

Verified by Experts

The correct Answer is:
c
At bridge head `S_(N^(2))`does't take place .According to brdt 's rule brigde head carabon can's be `sp^(2-)`hybridized .
(Nal+Aceetone ) +R-Xreaction `S_(N^(2))` depends on
(1) Leaving group tendency `therefore`
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