Synthesis of Aminomethylene-<i>gem</i>-bisphosphonates Containing an Aziridine Motif: Studies of the Reaction Scope and Insight into the Mechanism
作者:Thomas Cheviet、Suzanne Peyrottes
DOI:10.1021/acs.joc.0c02434
日期:2021.2.19
Study of the reaction’s scope and additional experiments indicates that the transformation proceeds via a new mechanism involving the chelation of lithium ion. This last step is crucial for the reaction to occur and disfavors the aziridine ring-opening. A phosphonate–phosphate rearrangement from a α-hydroxybisphosphonate aziridine intermediate is also proposed for the first time. This reaction provides