Abstract
Selective O-demethylation of the ortho methyl catecholate of N,N′,N″-tris-(2,3-dimethoxybenzoyl)-1,1,1-tris-(L-methioninemehyl)-ethane ( 7 ) has been accomplished by boron tribromide. The intramolecular nucleophilic attack of divalent sulphur on methyl enhance this cleavage, favours this selctivity and consequently afford the triprotonated ligand N,N′,N″-tris-(2-hydroxy-3-methoxybenzoyl)-1,1,1-tris-(L-methioninemethyl)-ethane ( 8 ) in a good yield.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
