Осуществите цепочки превращений, укажите условия реакций.

1) С → Al4C3 → CH4 → CO2 → CО → CH3-CH2-CH3 → CH3-CHBr-CH3→ C6H14
2) CH3-COONa → CH4 → C2H2→ C2H4→ C2H6→ C2H5Cl → C4H10
3) CH3-COONa → C2H6→ C→ C8H18→ C4H8 → C4H10→ C4H8→ CО2
4) С → CH4 → CH3Сl→ C3H8→ C3H7Br → C3H7MgBr → C3H7CH3
5) С → CH4 → CH3Сl→ C2H6→ C2H5Br → C4H10→ CH3-COOH → CH3-COONa → C2H6
6) С → C6H14 → C2H5-COOH → C2H5-COONa → C2H6