Synthesis of N-methylene phosphonate aziridines: reaction scope and mechanistic insights. (16th March 2022)

• Record Type: Journal Article
• Authors: Cheviet, Thomas; Gonzales, Ilyana; Peyrottes, Suzanne
• Is Part Of: New journal of chemistry. Volume 46:Number 14(2022)
• Page Start: 6453
• Page End: 6460
• Publication Date: 2022-03-16
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d2nj00595f
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Treatment of N -carbamoyl aziridines by the diethyl phosphite anion affords either α-methylene-phosphonate or gem -bisphosphonate derivatives containing an aziridine motif depending on the nature of the base used. Abstract : A series of N -carbamoyl aziridines has been treated by diethyl phosphite in the presence of n -BuLi to afford α-methylene phosphonate aziridines in modest yields. The study of the reaction's scopes and the analysis of byproducts indicated that this transformation proceeds via a unique mechanism. The mechanism that produces the α-methylene phosphonate relies on the use of BuLi, where both the lithium ion and then the presence of the nucleophilic butyl is essential. In addition, the nature of the final compound, either α-methylene phosphonate or α-methylene- gem -bisphosphonate derivatives containing an aziridine motif, is highly dependent on the nature of the base used.