some organic

1 In order to prepare a 1º-amine incorporating an additional CH2 group from an alkyl halide, what reagent is often used as the nitrogen source?
A) sodium amide, NaNH2
B) sodium azide, NaN3
C) potassium cyanide, KCN
D) potassium phthalimide, C6H4(CO)2NK

2 What set of conditions would be useful for preparing a 2º-amine?
A) 2º-RBr + NaNH2
B) (i) 2º-RBr + NaN3 (ii) H2 & Pt
C) (i) 1º-RNH2 + 1º-RCHO (ii) H2 & Pt
D) (i) 2 1º-RBr + potassium phthalimide (ii) H3O+ & heat

3 Many kinds of amino alcohols are known, but α-amino alcohols such as 1-dimethylaminocyclopentanol are not stable under most conditions.
Which of the following statements best accounts for their instability?
A) carbon does not like to form bonds to two more electronegative atoms such as O and N.
B) the α-isomer rapidly rearranges to the more stable β amino alcohol.
C) rapid loss of water (a stable small molecule) leads to an imine product.
D) rapid loss of amine leads to a stable carbonyl compound (aldehyde or ketone).