Call
1) CH3-CH2-CH2-CH3 + Cl2 ---gt; CH3-CH2-CH2-CH2-Cl + HCl CH3-CH2-CH2-CH2-Cl + KOH (dry) --gt; CH3-CH2-CH2=CH2 CH3-CH2-CH2=CH2 + Br2/H2O2 --gt; CH3-CH2-CH2-CH2-Br CH3-CH2-CH2-CH2-Br + KOH (aq) --gt; CH3-CH2-CH2-CH2-OH + KBr CH3-CH2-CH2-CH2-OH + NaBr/H2SO4 --gt; CH3-CH2-CH2-CH2-Br + H2O + NaHSO4 2) CH3-CH2-CH2-CH2-Br + KOH (dry) --gt; CH3-CH2-CH2=CH2 CH3-CH2-CH2=CH2 + H2 --gt; CH3-CH2-CH2-CH3 (kat) CH3-CH2-CH2-CH3 ----gt; CH3-CH=CH-CH3 + H2 (Cr2O3 300-400 C) CH3-CH=CH-CH3 + [O*] + H2O --gt; 2C2H5OH C2H5OH + POBr3 --gt; C2H5Br (in pyridine) 3) CH3-CH2-CH2-CH3 + Cl2 ---gt; CH3-CH2-CH2-CH2-Cl + HCl CH3-CH2-CH2-CH2-Cl + KOH (dry) --gt; CH3-CH2-CH2=CH2 CH3-CH2-CH2=CH2 + Br2/H2O2 --gt; CH3-CH2-CH2-CH2-Br CH3-CH2-CH2-CH2-Br + KOH (aq) --gt; CH3-CH2-CH2-CH2-OH + KBr 4) CH3-CH2-CH2-CH3 ----gt; CH3-CH=CH-CH3 + H2 (Cr2O3 300-400 C)