# 2+2 photocycloaddition

> chemical reaction

**Wikidata**: [Q146615](https://www.wikidata.org/wiki/Q146615)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Enone–alkene_cycloadditions)  
**Source**: https://4ort.xyz/entity/2-2-photocycloaddition