CuI / 4-羟基-1-脯氨酸催化的芳基溴化物与N- Boc肼的偶合反应在DMSO中于80°C进行,得到N-芳基酰肼。当使用芳基碘化物时,该反应在50℃下完成并且不需要配体。在CuI / 4-羟基-1-脯氨酸的催化下,氨水与芳基溴化物的偶联反应在50℃下顺利进行,得到伯芳基胺。在这种情况下,发现K 2 CO 3是比Cs 2 CO 3更好的碱。这些过程允许组装N带有多种官能团的-芳基酰肼和伯芳基胺包括羟基,胺基,三氟甲基,酯基,硝基和酮。
We report the synthesis and characterisation of a photoswitchable DFG-out kinase inhibitor. Photocontrol of the target kinase in both enzymatic and living cell assays is demonstrated.
作者:Moritz Fink、Jannik Stäuble、Maïté Weisgerber、Erick M. Carreira
DOI:10.1021/jacs.4c01786
日期:2024.4.10
convenient syntheses of aryl azocyclopropeniums and a study of their photochemical properties. Incorporation of the smallest arene leads to pronounced redshift of the π–π* absorbance band, compared to azobenzenes. Photoisomerization under purple or green light irradiation affords Z- or E-isomers in ratios up to 94% Z or 90% E, and the switches proved stable over multiple irradiation cycles. Thermal half-lives