[EN] A PURIFICATION METHOD OF IONIC LIQUIDS TO OBTAIN THEIR HIGH PURITY [FR] PROCEDE DE PURIFICATION DE LIQUIDES IONIQUES PERMETTANT D'OBTENIR UNE GRANDE PURETE
Process for the Preparation of Onium Alkylsulfonates
申请人:Ignatyev Nikolai (Mykola)
公开号:US20080221334A1
公开(公告)日:2008-09-11
The invention relates to a process for the preparation of onium alkylsulfonates by reaction of an onium halide or carboxylate with a symmetrically substituted dialkyl sulfite or with an asymmetrically substituted dialkyl sulfite at temperatures of 50 to 170° C.
Process for the preparation of onium alkylsulfonates
申请人:Merck Patent Gesellschaft mit beschrankter Haftung
公开号:US07999111B2
公开(公告)日:2011-08-16
The invention relates to a process for the preparation of onium alkylsulfonates by reaction of an onium halide or carboxylate with a symmetrically substituted dialkyl sulfite or with an asymmetrically substituted dialkyl sulfite at temperatures of 50 to 170° C.
A 2-cyanoacrylate-based adhesive composition includes a 2-cyanoacrylic acid ester (a) and an onium salt (b) represented by general formula C
+
A
−
. In the formula, C
+
is an onium cation, and A
−
is a hydrogen sulfate anion, bisulfite anion, sulfonate anion represented by R
1
SO
3
−
(where R
1
is an alkyl group, perfluoroalkyl group having 3 to 10 carbon atoms, cycloalkyl group, vinyl group, aryl group, perfluoroaryl group, aralkyl group, or halogen atom), or bis(substituted sulfonyl)imide anion represented by (R
2
SO
2
)
2
N
−
(where R
2
is an alkyl group, perfluoroalkyl group, or aryl group).) The 2-cyanoacrylate-based adhesive composition has good storage stability and has an excellent adhesion rate to metals and thermoplastic elastomers.
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.
[EN] FACILE N-ALKYLATION OF ACRIDINE COMPOUNDS IN IONIC LIQUIDS<br/>[FR] N-ALKYLATION FACILE DE COMPOSÉS D'ACRIDINE DANS DES LIQUIDES IONIQUES
申请人:SIEMENS HEATHCARE DIAGNOSTICS
公开号:WO2009067417A1
公开(公告)日:2009-05-28
A method is provided for N-alkylation of acridine compounds, typically with a 1,3- propane sultone alkylating reagent, in ionic liquid solvents to provide the corresponding acridinium compounds in high yeild.