fig21
![Application of sulfonium and sulfoxonium ylides in organocatalyzed asymmetric reaction](https://image.oaes.cc/2e87a9a0-e4ad-4eb1-a70b-eabf4d5148b8/5474.fig.21.jpg)
Figure 21. Various derivatizations of cyclopropane-fused chromane 70 and the cyclopropanation product 69. This figure is used with permission from the American Chemical Society[80].
Figure 21. Various derivatizations of cyclopropane-fused chromane 70 and the cyclopropanation product 69. This figure is used with permission from the American Chemical Society[80].
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