Reactivity and Selectivity of Azaspirocycles in Radical C–H Functionalization
作者:Chad N. Ungarean、Egor M. Larin、Dominic T. Egger、Philipp Ziegler、Quentin Lefebvre、Thomas C. Fessard、Bill Morandi
DOI:10.1021/acs.orglett.3c02881
日期:2024.4.12
spirocycles toward selective C–H functionalization reactions are scarce, despite their potential applications. In this work, we uncovered fundamental reactivity and selectivity differences between saturated heterocycles and their spirocyclic analogues using a model radical C–H xanthylation coupled with computational analysis. Ultimately, this study sheds light on the fundamental, understudied radical reactivity
Described herein are retinoic acid related-related orphan nuclear receptor (ROR) modulators and methods of utilizing ROR-gamma modulators in the treatment of diseases, disorders or conditions. Also described herein are pharmaceutical compositions containing such compounds.
Access to 3‐Azetidines via Halogenation of Titanacyclobutanes
作者:Tyler D. Weinhold、James A. Law、James H. Frederich
DOI:10.1002/adsc.202301527
日期:2024.5.21
Azetidines are valuable nitrogenous heterocycles. Herein, we disclose a strategy for the modular assembly of 3‐azetidines and related spirocyclic congeners featuring all‐carbon quaternary centers. This approach leverages titanacyclobutanes generated from ketones or alkenes. Halogenation of these organotitanium species gives rise to functionalized alkyl dihalides that can be subsequently captured by