Photochemical α-Aminonitrile Synthesis Using Zn-Phthalocyanines as Near-Infrared Photocatalysts
作者:Caroline Grundke、Rodrigo C. Silva、Winald R. Kitzmann、Katja Heinze、Kleber T. de Oliveira、Till Opatz
DOI:10.1021/acs.joc.1c03101
日期:2022.5.6
light-harvesting porphyrins, chlorins, and mainly bacteriochlorins and are also known for being efficient and affordable near-infrared light absorbers as well as triplet sensitizers for the production of singlet oxygen. Although having been neglected for a long time in synthetic organic chemistry due to their low solubility and high tendency toward aggregation, their unique photophysical properties and chemical
虽然太阳光的光化学转化几乎完全利用太阳光谱的紫外可见部分,但太阳发出的大部分光子的频率都在近红外区域。酞菁与天然存在的捕光卟啉、二氢卟酚和主要的细菌绿素具有高度的结构相似性,并且还以高效且价格合理的近红外光吸收剂以及用于生产单线态氧的三线态增敏剂而闻名。尽管由于其低溶解度和高聚集倾向而长期以来在合成有机化学中被忽视,但它们独特的光物理性质和化学稳定性使得酞菁在近红外光驱动合成策略中的应用成为有吸引力的光催化剂。在这里,我们报告一个便宜的,简单、高效的光催化协议,可在连续流动条件下轻松扩展。研究了各种酞菁作为近红外光敏剂,用于叔胺的氧化氰化以生成 α-氨基腈,这是一种综合用途广泛的化合物。