Photoswitchable organocatalysis in acylation of alcohol using dithienylethene-linked azoles |
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| Authors: | Hiroki Iida Naofumi Umebayashi Eiji Yashima |
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| Affiliation: | Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan |
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| Abstract: | Three novel dithienylethenes bearing azole derivatives were synthesized and found to undergo reversible photocyclization of the dithienylethene units upon alternate irradiation with UV and visible light. Among them, the dithienylethene-linked imidazole and N-phenylimidazole exhibited a relatively high organocatalytic activity for the acylation of 2-decanol with acetic anhydride, and the catalytic activity of the dithienylethene-linked imidazole could be switched by reversible photoinduced cyclization/cycloreversion of the dithienylethene unit. |
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| Keywords: | Photoswitch Organocatalysis Azoles Dithienylethenes Acylation |
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