Regioselective N-Functionalization of Tetraazacycloalkanes
摘要:
Bisaminal type compounds obtained by condensation of pyruvic aldehyde with the suitable open-chain tetraamine followed by cyclization with either dibromoethane or dibromopropane can be regioselectively quaternized by a wide range of alkylating agents. Removal of the bisaminal bridge yields the monosubstituted tetraazamacrocycle or bismacrocycle. Further functionalization allows the preparation of bifunctional ligands or trisubstituted macrocycles. The structure of six compounds was solved by X-ray diffraction, and the unexpected results are rationalized according to the molecular modeling calculations.
A convenient method for the preparation of mono N-alkylated cyclams and cyclens in high yields
作者:Cong Li、Wing-Tak Wong
DOI:10.1016/s0040-4039(02)00497-5
日期:2002.4
Selective and high yield synthesis of mono N-substituted derivatives of cyclam and cyclen can be achieved by using a direct and general synthetic method with very mild reaction conditions.
MATERIAU COMPRENANT DES POLYAZACYCLOALCANES, GREFFES SUR DES FIBRES DE POLYPROPYLENE, SON PROCEDE DE PREPARATION, ET PROCEDE D'ELIMINATION DE CATIONS METALLIQUES D'UN LIQUIDE
申请人:Commissariat à l'Energie Atomique
公开号:EP2109632A2
公开(公告)日:2009-10-21
[EN] MATERIAL COMPRISING POLYAZACYCLOALKANES GRAFTED ONTO POLYPROPYLENE FIBRES METHOD FOR PRODUCTION THEREOF AND METHOD FOR REMOVAL OF METAL CATIONS FROM A LIQUID<br/>[FR] MATERIAU COMPRENANT DES POLYAZACYCLOALCANES, GREFFES SUR DES FIBRES DE POLYPROPYLENE, SON PROCEDE DE PREPARATION, ET PROCEDE D'ELIMINATION DE CATIONS METALLIQUES D'UN LIQUIDE
申请人:COMMISSARIAT ENERGIE ATOMIQUE
公开号:WO2008099114A2
公开(公告)日:2008-08-21
[EN] Material comprising a polyazacycloalkane grafted onto polypropylene fibres. Method for production thereof and method for removal of metal cations contained in a liquid for bringing said liquid into contact with material. [FR] Matériau constitué par un polyazacycloalcane greffé sur des fibres de polypropylène. Procédé de préparation de ce matériau. Procédé d'élimination des cations métalliques contenus dans un liquide pour mise en contact de ce liquide avec ledit matériau.