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