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Updated: Jan 18, 2026

Photogeneration of N-Heterocyclic Carbenes: Application in Photoinduced Ring-Opening Metathesis Polymerization
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光催化Kharasch类型循环级联,用于获取多化1-子和子

Yan Zhang1, Zi-Yang Xu1, Rong Fu1

  • 1School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, China.

Organic letters
|January 16, 2026
PubMed
概括

研究人员开发了一种新的光催化级联反应,使用二次酒精连接的1,6-二氨酸和多甲. 这种高效的方法合成了具有高立体选择性的功能化 indanones 和 indenes.

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By replacing an α-hydrogen with a halogen, acid-catalyzed α-halogenation of aldehydes or ketones yields a monohalogenated product
In the first step of the mechanism, the acid protonates the carbonyl oxygen resulting in a resonance-stabilized cation, which subsequently loses an α-hydrogen to form an enol tautomer. The C=C bond in an enol is highly nucleophilic because of the electron-donating nature of the –OH group. Consequently, the double bond attacks an electrophilic halogen to form a...
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