Table 2 Effect of different amounts of catalysts, temperature and solvent (5 mL) in the triazole-dihydropyrano[3,2-b]pyran.

From: Ultrasound-assisted synthesis of kojic acid-1,2,3-triazole based dihydropyrano[3,2-b]pyran derivatives using Fe3O4@CQD@CuI as a novel nanomagnetic catalyst

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Entry

Solvent

Conditions

Catalyst (mg)

Time (h)

Yield (%)

1

H2O

r.t.

10

4

10

2

t-BuOH

r.t.

10

6

Trace

3

DMF

r.t.

10

6

25

4

MeOH

r.t.

10

4

65

5

t-BuOH: H2O (2:1)

r.t.

10

6

45

6

H2O

r.t., US

10

2

80

7

MeOH

r.t., US

10

2.5

70

8

t-BuOH

r.t., US

10

3

35

9

DMF

r.t., US

10

1.5

50

10

H2O

60, US

10

1

93

11

H2O

80, US

10

1

93

12

H2O

60, US

5

1.5

75

13

H2O

60, US

15

1.5

93

  1. Significant values are in bold.
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