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Table 2 Yield (%)/YE of solvent free G and other solvent free Lit. techniques

From: Multicomponent synthesis of 4-arylidene-2-phenyl-5(4H)-oxazolones (azlactones) using a mechanochemical approach

No.

Yield (%/G)

(YE/G)

Yield (%) Lit.

(YE)a

2a

90

22

97 [39]

19.4

2b

93

18.6

90 [38]

6.1

2c

96

9.6

91 [38]

2.0

2d

91

7.6

95 [42]

19

2e

96

9.6

85 [38]

1.4

2f

88

7.3

92 [42]

2.0

2 g

87

6.3

91 [42]

2.0

2 h

87

9.3

94 [39]

31.3

2i

79

13.2

91 [39]

30.3

  1. G Grinding, YE yield economy
  2. a YE calculated yield economy on the bases of lit. Y (%)