背景：自科学化学开始以来，化学家就对光作为诱导化学反应的能源感兴趣。有机光化学反应不需要有毒或污染试剂，因此这些反应代表了绿色化学和可持续过程的观点。

目的：有机化学的最大经典分类是杂环。杂环化合物在许多领域中的作用不容忽视。这就是为什么化学家不断尝试设计和合成杂环的原因。这篇综述总结了光化学反应的化学，重点是它们的合成应用。在这篇综述中，介绍了在六元N-杂环合成中采用的最重要的光化学转化。

结论：这篇综述讨论了可用于有机合成的有机光化学研究活动。这篇综述概述了杂环化合物的合成。传统方法需要高度专业化或昂贵的设备，非常不便，或者对于合成有机化学家来说用途有限。因此，它们已被省略。光化学可用于选择性，有效和高产率地制备许多杂环。

"点击查看英文标题和摘要"

Background: Chemists have been interested in light as an energy source to induce chemical reactions since the beginning of scientific chemistry. The organic photochemical reactions do not require toxic or polluting reagents so these reactions presented perspectives in the context of green chemistry and sustainable processes.

Objective: The largest classical divisions of organic chemistry are constituted by heterocycles. The role of heterocyclic compounds in a number of areas cannot be ignored. That's why the chemists are continuously trying to design and synthesize heterocycles. This review summarizes the chemistry of photochemical reactions with emphasis on their synthetic applications. In this review, the most important photochemical transformations that have been employed in six-membered N-heterocycles synthesis are presented.

Conclusion: This review discussed the research activities in organic photochemistry that are applicable in organic synthesis. This review outlined the synthesis of heterocyclic compounds. Traditional approaches require highly specialized or expensive equipment, are highly inconvenient, or would be of limited use to the synthetic organic chemist. Therefore, these have been omitted by them. Photochemistry can be used to prepare a number of heterocycles selectively, efficiently and in high yield.