Compound number

R

Ar

Microwave method

Conventional

time

yield

time

yield

2a

ـــــCH₃

C₇H₃F

2

92

55

60

2b

ـــــCH₃

C₆H₄SF₅

2

94

48

69

2c

ـــــCH₃

C₆H₅NF

2

90

58

60

2d

ـCH₃

C₆H₂Cl₂NO

2

91

56

63

2e

-CH₃

C₁₂H₁₁NF₄

2

93

55

60