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Table 2 Times and yields of pyridinium hydrazones 1033 carrying fluorinated counter anions under conventional and ultrasound

From: Novel amphiphilic pyridinium ionic liquids-supported Schiff bases: ultrasound assisted synthesis, molecular docking and anticancer evaluation

Compound no R Y Conventional method CM Ultrasound method US
Time (h) Yield (%) Time (h) Yield (%)
10 C8H17 PF6 16 83 6 90
11 C8H17 BF4 16 98 6 98
12 C8H17 COOCF3 16 80 6 88
13 C9H19 PF6 16 90 6 94
14 C9H19 BF4 16 85 6 90
15 C9H19 COOCF3 16 87 6 92
16 C10H21 PF6 16 98 6 98
17 C10H21 BF4 16 88 6 90
18 C10H21 COOCF3 16 86 6 92
19 C11H23 PF6 16 94 6 98
20 C11H23 BF4 16 93 6 94
21 C11H23 COOCF3 16 90 6 94
22 C12H25 PF6 16 87 6 90
23 C12H25 BF4 16 82 6 90
24 C12H25 COOCF3 16 88 6 92
25 C14H29 PF6 16 95 6 98
26 C14H29 BF4 16 93 6 96
27 C14H29 COOCF3 16 97 6 98
28 C16H33 PF6 16 89 6 92
29 C16H33 BF4 16 90 6 94
30 C16H33 COOCF3 16 88 6 92
31 C18H37 PF6 16 88 6 92
32 C18H37 BF4 16 87 6 90
33 C18H37 COOCF3 16 84 6 90