Table 3.

Suzuki coupling of aryl bromides 5b–g with phenylboronic acid using the catalyst 4 under thermal  and microwave conditions

Entry	R	Conversion	∆ yield %	MW yield %
1	H	100	78	92
2	2-COCH3	100	61	93
3	4-OCH3	100	70	90
4	4-COOH	100	74	89
5	4-CH3	100	24	60
6	4-OH	100	77	87

Conditions: Bromide: 1 mmol; phenylboronic acid: 1.2 mmol; TBAB: 0.6 mmol; KOH: 2 mmol; water: 5 mL, Pd-complex 4: 0.25 mol%, microwave heating (300 W) at 110 °C for 10 min and thermal heating at 100 °C for 3 h