[2 + 2] Photocycloadditions between the Carbon–Nitrogen Double Bonds of Imines and Carbon–Carbon Double Bonds

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• 作者：Ryu Sakamoto ; Tsubasa Inada ; Shunya Sakurai ; Keiji Maruoka
• 刊名：Organic Letters
• 出版年：2016
• 出版时间：December 16, 2016
• 年：2016
• 卷：18
• 期：24
• 页码：6252-6255
• 全文大小：383K
• ISSN：1523-7052

文摘

In contrast to the well-known [2 + 2] photocycloadditions between C═O and C═C bonds, the participation of C═N bonds in such reactions is relatively rare. In this paper, the unprecedented UV-light-induced [2 + 2] cycloadditions between N-arylsulfonylimines and styrene derivatives or benzofurans are described. This photolytic reaction allows the highly stereoselective construction of azetidine derivatives under ambient conditions.