Demethylation of compounds derived from oxidative depolymerization of lignin^a.

Entry	Substrate	Product	Conversion (%)	Yield (%)
1			96	92
			100b	87b
2			100	97
3			99	87
			100b	54b
4			100	36
5			98	50
			100b	31b
6			100	32

^aConditions: 0.1 mmol substrate, 2.5 mL, 61.7% LiBr with 1.5 M HCl, 110 °C, and 1 h.

^bTime, 2 h.