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Table 2 Study of solvent system for the preparation of 1,8-dioxodecahydroacridines

From: A facile and efficient synthesis of 1,8-dioxodecahydroacridines derivatives catalyzed by cobalt–alanine metal complex under aqueous ethanol media

Entry

Solvent

Time (h)

Yield (%)a

1

CH3CN

4.5

72

2

DCM

3.0

80

3

DMF

3.0

90

4

Ethanol

1.0

96

5

Solvent free

4.5

60

  1. aYields of isolated products