Source of Pyrrole , Furan and Thiophene

Source of Pyrrole & Thiophene

Generally, Pyrrole and Thiophene both are obtained from Coal tar.

                                                                                     

Coal Tar

                  

Furan :

Furan is also obtained from decarbonylation of Furfuraldehyde and source is,: Oat hulls, Corn cobs, Rice

Rice Hulls

Oat Hulls

Corn Cobs