光化学转移到基因通过选择性基化
Amit Pal1, Prakash Maity1, Fathima Niloofar1
1School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala PO, Vithura, Thiruvananthapuram, Kerala 695551, India.
这项研究引入了一种新型的光化学方法,用于从基中合成不和硫. 该工艺利用1,4-DHP硫替代物,提供了一条通往有价值化学化合物的多功能途径.
科学领域:
- 有机化学 有机化学
- 摄影化学的使用.
- 催化剂是一种催化剂.
背景情况:
- 碳酸化是合成硫的关键转化.
- 开发高效和选择性的甲化方法仍然是一个活跃的研究领域.
- 光化学方法在有机合成中提供了独特的反应途径.
研究的目的:
- 报告第一个使用1,4-DHP硫替代物的基因的基化.
- 为了建立一个通用的光化学路径到 (E) -和 (Z) -α,β-不和铁.
- 开发一种用于高效和选择性硫合成的催化系统.
主要方法:
- 使用稳定的1,4-DHP硫替代品.
- 采用光化学条件进行反应.
- 开发一种用于激活和碳化的/光氧化催化系统.
- 使用基和基易斯酸对进行E-to-Z光异构化.
主要成果:
- 首次实现了 (未) 激活的基的基化.
- 产生了一条通往具有高区域和立体选择性的 (E) -α,β-不和乙的通路.
- 通过E-到-Z光异构化成功访问了 (Z) -α,β-不和硫乙.
- 使用Pd/photoredox系统,对光异构和副作用的控制得到了证明.
结论:
- 开发的光化学方法提供了一种多功能和选择性的途径,可以获得α,β-不和硫.
- 在光化学条件下使用1,4-DHP硫替代物对基化有效.
- 催化系统可以控制立体化学,允许访问E和Z同位素.
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