Table 1.

Time and temperature reaction optimization ^a.

Entry	T (°C)	T (h)	Yield (%)
1	25 (RT)	48	19
2	80	0.5	57
3	100	0.33	72
4	100	0.5	92
5 b	100	0.5	19

^a Reaction conditions: 0.268 mmol of 1a (1 eq), 0.161 mmol of TBAB (0.6 eq), 0.563 mmol of KOH (2 eq), and 1 mg (2% w/w) catalyst in 2.5 mL of water under MW irradiation. ^b Conventional heating instead of MW irradiation was used.