[damac]

Hi all i have a couple things i have to convert 1-bromobutane to

3. 1-butyne

does this look correct?

CH3CH2CH2CH2Br + NaC2CH --> CH3CH2C(triple bond)CH

4. CH3CH2CH2CH2CN
I think that i have found what was wrong with it

CH3CH2CH2Br + NaCN --> CH3CH2CH2CH2CN + NaBr

5. CH3CH2CH2CH2-O-C(=O)CH3

need help