SYNTHESIS OF ACRIDINIUM COMPOUNDS BY N-ALKYLATION OF ACRIDANS
申请人:Siemens Healthcare Diagnostics Inc.
公开号:US20150197491A1
公开(公告)日:2015-07-16
A method is provided for N-alkylation of acridine compounds by reduction of acridines to corresponding acridans to improve the reactivity of the acridine nitrogen, and subsequent N-alkylation of the acridans in ionic liquid solvents to provide the corresponding acridinium compounds in high yield. This inventive process improves chemical conversion, and does not require the use of highly toxic alkylating agents, such as 1,3-propane sultone.