5-Membered rings




Pyrrolidine

Pyrrole

2-Pyrroline

3-Pyrroline


Organics reactions for Pyrroles synthesis:

Barton-Zard Pyrrole Synthesis

Knorr Pyrrole Synthesis    

Paal-Knorr Pyrrole Synthesis                                                      

Hantzsch Pyrrole Synthesis



Imidazole

2-Imidazoline

Imidazolidine




Pyrazole

2-Pyrazoline

Pyrazolidine




1,2,3-Triazole

1,2,4-Triazole

Tetrazole




Furan

Oxazole

Isoxazole

1,2,3-Oxadiazole


Organics reactions for Furans:

Paal-Knorr Furan Synthesis

Feist-Bénary Furan Synthesis

Organics reactions for Oxazoles and Isoxazoles synthesis:

Fisher Oxazole Synthesis

Robinson-Gabriel Oxazole Synthesis



Thiophene

Thiazole

Isothiazole

1,3,4-Thiadiazole


Organics reactions for Thiophenes synthesis:

Paal Thiophene Synthesis 

Gewald Aminothiophene Synthesis

Organics reactions for Thiazole and Isothiazole synthesis:

Hantzsch Thiazole Synthesis