作者:Ellen M. Sletten、Gabriela de Almeida、Carolyn R. Bertozzi
DOI:10.1021/ol500260d
日期:2014.3.21
Difluorinated cyclooctynes are important reagents for labeling azido-biomolecules through copper-free click chemistry. Here, a safe, scalable synthesis of a difluorinated cyclooctyne is reported, which involves a key homologation/ring-expansion reaction. Sequential ring expansions were also employed to synthesize and study a novel difluorinated cyclononyne.
二氟化环辛炔是通过无铜点击化学标记叠氮生物分子的重要试剂。在这里,报道了一种安全、可扩展的二氟化环辛炔合成,它涉及关键的同系化/扩环反应。还采用顺序扩环来合成和研究新型二氟化环壬炔。