MONO AND BIS-ESTER DERIVATIVES OF PYRIDINIUM AND QUINOLINIUM COMPOUNDS AS ENVIRONMENTALLY FRIENDLY CORROSION INHIBITORS
申请人:Tiwari Laxmikant
公开号:US20110003992A1
公开(公告)日:2011-01-06
A quaternary nitrogen-containing corrosion inhibitor of formula
wherein
is an aromatic, nitrogen-containing ring of 5 to 14 ring atoms, optionally containing an additional N, O or S ring atom and optionally substituted with one or more alkyl, alkenyl, aryl, arylalkyl, cycloalkyl, amino, aminoalkyl, alkoxy, hydroxylalkyl, or cyano groups, or a mixture thereof; Y is a group of formula —OC(O)R
1
or —C(O)R
1
; L is C
1
-C
10
alkyl, C
2
-C
10
alkenyl or a group of formula —CH
2
CH(OR
2
)CH
2
—; R
1
is C
8
-C
20
alkyl or C
8
-C
20
alkenyl; R
2
is H or —C(O)R
1
; R
3
and R
4
are independently selected from H, alkyl, alkenyl, amino, alkoxy, hydroxylalkyl and cyano; and X is Br, Cl or I is particularly useful for inhibiting corrosion in oil and gas field applications.