Table 3.

Addition of Arynes to DMPU^a

entry	substrate	product	yield, %
1			64
2			67
3			55
4			62
5			51
6			61
7			67

^aSilyl aryl bromide or sulfamate (0.25 mmol), DMPU (0.75 mL), Me₄NF (0.75 mmol), diethyl ether (0.5 mL), 0 °C, 6 h. Yields are isolated yields. See the Supporting Information for details. DMPU = 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone.