Identify D in the following sequence of reactions: [figure]
- n-propyl alcohol
- isopropyl alcohol
- propanal
- propionic acid
Answer
(1) n-propyl alcohol
Solution
CH3CH2OH P + I2 CH3CH2I (A)
CH3CH2I [dry ether]Mg CH3CH2MgI (B)
CH3CH2MgI + HCHO CH3CH2CH2OMgI (C)
CH3CH2CH2OMgI H2O CH3CH2CH2OH + Mg(OH)I
Grignard reagent with methanal gives a primary alcohol: D = n-propyl alcohol.
Answer: (1)