Cooperative Lewis Acid‐1,2,3‐Triazolium‐Aryloxide Catalysis: Pyrazolone Addition to Nitroolefins as Entry to Diaminoamides
作者:Daniel M. Wanner、Patrick M. Becker、Simon Suhr、Nick Wannenmacher、Slava Ziegler、Justin Herrmann、Felix Willig、Julia Gabler、Khushbu Jangid、Juliane Schmid、Andreas C. Hans、Wolfgang Frey、Biprajit Sarkar、Johannes Kästner、René Peters
DOI:10.1002/anie.202307317
日期:2023.9.4
Pyrazolones represent an important structural motif in active pharmaceutical ingredients. A polyfunctional CuII-1,2,3-triazolium-aryloxide catalyst which enables their addition to nitroolefins with high enantio- and diastereocontrol is presented. DFT studies show that the catalyst adopts a rigid chiral cage structure by intramolecular hydrogen bonding. The products were used to form bioactive compounds
吡唑啉酮代表了活性药物成分中的重要结构基序。提出了一种多官能 Cu II -1,2,3-三唑芳基氧化物催化剂,使其能够以高对映体和非对映体控制加成硝基烯烃。DFT研究表明该催化剂通过分子内氢键采用刚性手性笼结构。该产品用于形成生物活性化合物、吡唑烷酮和β,γ'-二氨基酰胺。