Abstract Upon flash pyrolysis between 580 to 660, 2, 4, 6-tris (chloromethyl) mesitylene (2) leads to products formed through the loss of one, two and three molecules of HCl. The highly reactive chlorine free product is shown to be [6] radialene (1) both by its chemical reactions and by its spectral properties.
![Tricyclo[6.2.0.03,6]deca-1,3(6),7-triene, 2-(chloromethyl)-7-methyl- (9CI) Structure](https://image.chemsrc.com/caspic/387/66628-58-8.png)