R. Bartnik et S. Lesniak, FLASH VACUUM THERMOLYSIS OF 4 MEMBERED RING CONTAINING NITROGEN ATOM .3. THERMAL-DECOMPOSITION OF BETA-LACTAMS, Polish Journal of Chemistry, 68(12), 1994, pp. 2605-2611
The thermal decomposition of beta-lactams under FVT conditions was stu
died. It has been found that the regiochemistry of the ring cleavage d
epends on the nature of substituents. 1,4-Diradical stepwise mechanism
of these reactions has been postulated.