解决高通量光化学中的可复制性挑战
Brenda Pijper1, Lucía M Saavedra1, Matteo Lanzi2
1Chemical Capabilities, Analytical & Purification, Global Discovery Chemistry. Janssen-Cilag, S.A., E-45007 Toledo, Spain.
JACS Au
|July 26, 2024
概括
这项研究比较了可重复光介导合成的批量光反应器. 它介绍了使用批量和流光反应器进行并行合成,以实现可靠的高吞吐量实验和库生成.
科学领域:
- 有机合成和药用化学
- 光化学和反应工程 摄影化学和反应工程
背景情况:
- 光介导反应对于有机合成和药物发现至关重要,使新的化学转化成为可能.
- 复制性和数据稳定性的挑战阻碍了广泛采用光作为研究中的能源.
- 需要为光介导反应提供标准化和可靠的平台,特别是在高通量设置中.
研究的目的:
- 为了进行商业上可用的批量光反应器的对比比较.
- 介绍和评估批量和流光反应器在并行合成中的使用.
- 建立一个可靠和一致的平台,用于光介导反应在高通量模式.
主要方法:
- 各种商业批量光子反应器系统的全面对比比较.
- 实施并行合成策略,利用批量和流量光反应器配置.
- 对高吞吐量实验和库综合的平台性能评估.
主要成果:
- 确定符合严格的效率和强度要求的特定批量光反应器平台.
- 使用组合批量和流光反应器设置成功进行并行合成的演示.
- 适用于高通量实验选和图书馆合成的平台的验证.
结论:
- 一些商业上可用的批量光反应器适用于可重复的光介导合成.
- 使用批量和流量光反应器并行合成为高吞吐量应用提供了可靠的平台.
- 该研究为一致和高效的光介导反应优化和库生成提供了基础.
相关概念视频
01:22Photosystem II
The multi-protein complex photosystem II (PS II) harvests photons and transfers their energy through its bound pigments to its reaction center, and ultimately to photosystem I (PSI) through the electron transport chain. The pigments responsible for caputirng the light energy in photosystems include chlorophyll a, chlorophyll b, and carotenoids.
The pigment molecules are arranged across two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment molecules...
The pigment molecules are arranged across two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment molecules...
01:27Photosystem I
Although structurally similar to photosystem II (PSII), photosystem I (PSI) is has a different electron supplier and electron acceptor.
Both these photosystems work in concert. An excited electron from PSII is relayed to PSI via an electron transport chain in the thylakoid membrane of the chloroplast, which is comprised of the carrier molecule plastoquinone, the dual-protein cytochrome complex, and plastocyanin. As electrons move between PSII and PSI, they lose energy and must be re-energized...
Both these photosystems work in concert. An excited electron from PSII is relayed to PSI via an electron transport chain in the thylakoid membrane of the chloroplast, which is comprised of the carrier molecule plastoquinone, the dual-protein cytochrome complex, and plastocyanin. As electrons move between PSII and PSI, they lose energy and must be re-energized...
01:26Photochemical Electrocyclic Reactions: Stereochemistry
The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
Selection Rules: Photochemical Activation