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Table 1 Effect of concentration of catalyst 4 on the coupling of p-bromoacetophenone with phenylboronic acid in water under thermal conditions

From: Novel pyridine-based Pd(II)-complex for efficient Suzuki coupling of aryl halides under microwaves irradiation in water

Entry

Catalyst 4 (mol%)

GC-yield %a,b

1

1

100

2

0.75

100

3

0.50

100

4

0.25

100 (96)

5

0.125

100

6

0.05

100

7

0.025

100

8

0.005

87

9

0.00

0

  1. aConditions: p-Bromoacetophenone/ phenylboronic acid/ TBAB/ base/ water: 1/1.2/ 0.6/ 2 / 5 mL, under thermal heating at 100–110 °C for 2 h
  2. bConversions were based on GC-analysis and the values between parenthesis refer to the isolated yields
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BMC Chemistry

ISSN: 2661-801X

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