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. 2018 Sep 2;4(3):72. doi: 10.3390/gels4030072

Figure 16.

Figure 16

Photoinitiated, radical-mediated thiol-ene addition generates a covalent bond rapidly between a thiol-presenting compound and an alkene (A). When electron-deficient alkenes are used, the photoinitiated thiol-ene reaction is often accompanied by the base-catalyzed Michael-type addition reaction (B).