Synthesis of (alkylaminomethyl)lactones and hydroxypiperidones using alkylaminomethylation methodology
作者:Evgeny M. Buev、Vladimir S. Moshkin、Vyacheslav Y. Sosnovskikh
DOI:10.1016/j.tetlet.2015.10.024
日期:2015.11
compounds bearing CO2R or CN groups with nonstabilized azomethineylides. Oxazolidine–lactone rearrangement of the intermediate adducts was carried out for the first time to give (aminomethyl)lactones in good yields. The latter could be rearranged to give 5-hydroxy-2-piperidones, which could also be directly obtained from the aromatic ketones thus avoiding isolation of the intermediate lactone.