Most Important Reactions in Organic Chemistry

Here’s a compact list of the most important basic organic chemistry reactions (just the reactions, no explanations):

1. Combustion:
   $\text{C}_x\text{H}_y + O_2 \rightarrow CO_2 + H_2O$

2. Halogenation of Alkanes (Free Radical Substitution):
   $\text{CH}_4 + Cl_2 \xrightarrow{hv} \text{CH}_3Cl + HCl$

3. Hydrogenation of Alkenes:
   $\text{CH}_2=CH_2 + H_2 \xrightarrow{Ni/Pt} CH_3CH_3$

4. Halogenation of Alkenes (Electrophilic Addition):
   $\text{CH}_2=CH_2 + Br_2 \rightarrow BrCH_2CH_2Br$

5. Hydration of Alkenes:
   $\text{CH}_2=CH_2 + H_2O \xrightarrow{H^+} CH_3CH_2OH$

6. Ozonolysis of Alkenes:
   $\text{RCH=CHR'} + O_3 \rightarrow RCHO + R'CHO$

7. Dehydration of Alcohols:
   $\text{CH}_3CH_2OH \xrightarrow{H_2SO_4, \Delta} CH_2=CH_2 + H_2O$

8. Oxidation of Alcohols:
   $\text{CH}_3CH_2OH \xrightarrow{[O]} CH_3CHO \xrightarrow{[O]} CH_3COOH$

9. Haloform Reaction:
   $\text{CH}_3COCH_3 + 3I_2 + 4NaOH \rightarrow CHI_3 + CH_3COONa + 3NaI + 3H_2O$

10. Cannizzaro Reaction:
    $\text{2HCHO} \xrightarrow{NaOH} CH_3OH + HCOONa$

11. Aldol Condensation:
    $\text{2CH}_3CHO \xrightarrow{NaOH} CH_3CH(OH)CH_2CHO \xrightarrow{\Delta} CH_3CH=CHCHO$

12. Kolbe’s Reaction:
    $\text{C}_6\text{H}_5ONa + CO_2 \xrightarrow{\Delta} \text{o-HO–C}_6\text{H}_4\text{–COONa}$

13. Reimer–Tiemann Reaction:
    $\text{C}_6\text{H}_5OH + CHCl_3 + NaOH \rightarrow o-HO–C_6H_4–CHO$

14. Friedel–Crafts Alkylation:
    $\text{C}_6\text{H}_6 + RCl \xrightarrow{AlCl_3} C_6H_5R + HCl$

15. Friedel–Crafts Acylation:
    $\text{C}_6\text{H}_6 + RCOCl \xrightarrow{AlCl_3} C_6H_5COR + HCl$

16. Sandmeyer Reaction:
    $\text{ArN}_2^+Cl^- \xrightarrow{CuCl/HCl} ArCl$

17. Wurtz Reaction:
    $\text{2RCl + 2Na} \rightarrow R–R + 2NaCl$

18. Kolbe Electrolysis:
    $\text{2CH}_3COONa \xrightarrow{electrolysis} C_2H_6 + 2CO_2 + H_2$

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