Table 1.

O-Methylation of glycerol (1) in sub- and supercritical methanol under varying temperatures.

Entry	Temperature (°C)	Pressure (bar)	Yield of 2 (%)
1a	260	170	39
2a	240	160	40
3b	220	60	39
4b	200	60	18
5b	180	50	4

^aSupercritical methanol.

^bSubcritical methanol.