ISOHEXIDE MONOTRIFLATES AND PROCESS FOR SYNTHESIS THEREOF
申请人:ARCHER DANIELS MIDLAND COMPANY
公开号:US20160016969A1
公开(公告)日:2016-01-21
Isohexide monotriflate compounds and a method of preparing the same are described. The method involves reacting a mixture of an isohexide, a trifluoromethanesulfonate anhydride, and either 1) a nucleophilic base or 2) a combination of a non-nucleophilic base and a nucleophile. The isohexide monotriflate compounds can serve as precursor materials from which various derivative compounds can be synthesized.
[EN] ISOHEXIDE MONOTRIFLATES AND PROCESS FOR SYNTHESIS THEREOF<br/>[FR] MONOTRIFLATES D'ISOHEXIDE ET LEUR PROCÉDÉ DE SYNTHÈSE
申请人:ARCHER DANIELS MIDLAND CO
公开号:WO2014137576A1
公开(公告)日:2014-09-12
Isohexide monotriflate compounds and a method of preparing the same are described. The method involves reacting a mixture of an isohexide, a trifluoromethanesulfonate anhydride, and either 1) a nucleophilic base or 2) a combination of a non-nucleophilic base and a nucleophile. The isohexide monotriflate compounds can serve as precursor materials from which various derivative compounds can be synthesized.
Methyl transfer in quaternary alkylammonium salts, derivatives of 1,4:3,6-dianhydrohexitols
place during the synthesis of quaternary ammonium salts with O-triflyl derivatives of 1,4:3,6-dianhydrohexitols and tertiary alkylamines. The products were identified as tertiary amine derivatives of 1,4:3,6-dianhydrohexitol and tetraalkylammonium triflate. It was found that formation of the products was the consequence of the methyl group migration from QAS formed to the amine present in excess in the