BIS-IMIDAZOLINE COMPOUNDS AS CORROSION INHIBITORS AND PREPARATION THEREOF
申请人:Dow Global Technologies LLC
公开号:EP3087216A1
公开(公告)日:2016-11-02
US7250415B2
申请人:——
公开号:US7250415B2
公开(公告)日:2007-07-31
[EN] 1,1-DISUBSTITUTEDCYCLOALKYL-, GLYCINAMIDYL-, SULFONYL-AMIDINO-, AND TETRAHYDROPYRIMIDINYL-CONTAINING DIAMINOALKYL, beta-AMINOACIDS, alpha-AMINOACIDS AND DERIVATIVES THEREOF AS FACTOR XA INHIBITORS<br/>[FR] DOLLAR G(A)-AMINOACIDES, DOLLAR G(B)-AMINOACIDES, DIAMINOALKYLE CONTENANT 1,1-DISUBSTITUE CYCLOALKYLE, GLYCINAMIDYLE, SULFONYL-AMIDINO-, ET TETRAHYDROPYRIMIDINYLE ET LEURS DERIVES UTILISES COMME INHIBITEURS DU FACTEUR XA
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2004108892A2
公开(公告)日:2004-12-16
The present application describes 1,1-disubstitutedcycloalkyl-, glycinamidyl-, sulfonyl-amidino-, and tetrahydropyrimidinyl-containing diaminoalkyl, β-aminoacids, α-aminoacids and derivatives therof of Formula(I) or pharmaceutically acceptable salt forms thereof, wherein M is a linear core. Compounds of the present invention are useful as inhibitors of trypsin-like serine proteases, specifically factor Xa.
[EN] BIS-IMIDAZOLINE COMPOUNDS AS CORROSION INHIBITORS AND PREPARATION THEREOF<br/>[FR] COMPOSÉS BIS-IMIDAZOLINE EN TANT QU'INHIBITEURS DE CORROSION ET LEUR PRÉPARATION
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:WO2015100031A1
公开(公告)日:2015-07-02
The disclosure provides compositions and methods for inhibiting corrosion of a copper surface using a bis-imidazoline compound having an aromatic group, such as an aryl bis-imidazoline. The bis-imidazoline corrosion inhibitor can provide one or more advantage in use such as synergistic performance in aqueous and acidic media at low active dosages, resistance to decomposition or degradation in the presence of harsh reagents, ease of dispersion in an aqueous system, and improved thermal stability over conventional triazole based inhibitors. The disclosure also provides methods for the synthesis of bis-imidazoline compounds.
Synthesis and Study of 1-Aryl-1<b>
<i>H</i>
</b>-4,5-dihydroimidazoles
An easy synthesis of 1-aryl-1H-4,5-dihydroimidazoles 1 by cyclocondensation of N-aryl-N′-formylethylenediamines 2 is described. Such precursors were synthesized by selective formylation of N-arylethylenediamines 3 with p-nitrophenyl formate. Cyclizations were performed using trimethylsilyl polyphosphate. Chemical properties of compounds 1, typical of amidine system, were studied. Reaction of 1 with methyl iodide leads to the corresponding 1-aryl-3-methyl-1H-4,5-dihydroimidazolium salts 5. Reduction of dihydroimidazoles 1 with sodium cyanoborohydride provides a convenient access to N-aryl-N′-methylethylenediamines 4.