Entry

Starting Iminophosphorane

Isoindolone Obtained

Yield (%)^a

1

Ethyl (Z)-3-(thiophen-2-yl)-2-((triphenyl-λ⁵-phosphaneylidene)amino)acrylate (1)

12

87

2

Ethyl (Z)-3-(thiophen-3-yl)-2-((triphenyl-λ⁵-phosphaneylidene)amino)acrylate (2)

13

90

3

Ethyl (Z)-3-(thiophen-2-yl)-2-((triphenyl-λ⁵-phosphaneylidene)amino)acrylate (1)

14

87

4

Ethyl (Z)-3-phenyl-2-((triphenyl-λ⁵-phosphaneylidene)amino)acrylate (11)

16

87

5

Ethyl (Z)-3-phenyl-2-((triphenyl-λ⁵-phosphaneylidene)amino)acrylate (11)

16

70

6

Ethyl (Z)-3-phenyl-2-((triphenyl-λ⁵-phosphaneylidene)amino)acrylate (11)

17

86

7

Ethyl (Z)-3-phenyl-2-((triphenyl-λ⁵-phosphaneylidene)amino)acrylate (11)

18

86