No abstract

atom through the double bond. Therefore the C(2)-C(3) bond is more stable than the C(3)-C(4) bond.This results in the formation of acetylene from the C(4) and C(5) atoms.In structure C, the C(2)-C(3) bond is weakened. If this bond breaks, the molecule can either reclose or eliminate C2H2 containing the C(3)-C(4) atoms.Thus, we can argue that furan does not form C2H2 because it lacks structure B and possibly C. For pyrrole, structures B and C exist and C2H2 is produced though it is less important than the C3H4 compounds. With thiophene, structures B and C are even more important, and C2H2 is produced in excess of the C3H4 compounds.18 Acknowledgment. This work was supported by the National Air Pollution Control Association under Grant No. 1 ROI APOG718-02, for which we are grateful.

Translated by Ralph E. Oesper.

No abstract

No abstract