(US20200318243) Heterocyclic corrosion inhibitor compounds and uses thereof 机翻标题: 暂无翻译,请尝试点击翻译按钮。

源语言标题
(US20200318243) Heterocyclic corrosion inhibitor compounds and uses thereof
公开号/公开日
US20200318243 / 2020-10-08
申请号/申请日
US16/376,819 / 2019-04-05
发明人
OBOT IME BASSEYONYEACHU BENEDICT IKENNAQURAISHI MUMTAZ AHMAD;
申请人
KING FAHD UNIVERSITY OF PETROLEUM & MINERALS;
主分类号
IPC分类号
C07D-487/04 C23F-011/16
摘要
(US20200318243) Heterocyclic compounds having fused pyrimidine moieties with electron-donating groups. A method of preparing the heterocyclic compounds via a multicomponent condensation reaction is specified. These compounds are effective against corrosion of metallic substrates in acidic (i.e. CO2), and high salinity environments commonly found in oil and gas industry.
机翻摘要
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地址
代理人
代理机构
;
优先权号
2019US-16376819
主权利要求
(US20200318243) 1: A compound of formula (I) or a salt thereof, a solvate thereof, a tautomer thereof, a stereoisomer thereof, or a mixture thereof;   wherein:   R1 is selected from the group consisting of an optionally substituted alkoxy, an optionally substituted aryloxy, an optionally substituted amino, and an optionally substituted amide;   each R2 is independently selected from the group consisting of a hydrogen, an optionally substituted alkyl, an optionally substituted cycloalkyl, an optionally substituted arylalkyl, and an optionally substituted aryl;   each R3 is independently selected from the group consisting of a hydrogen, an optionally substituted alkoxy, an optionally substituted aryloxy, an optionally substituted amino, an optionally substituted amide, an optionally substituted alkyl, an optionally substituted cycloalkyl, an optionally substituted arylalkyl, and an optionally substituted aryl;   X is O or S; and   Y is O or S. 2: The compound of formula (I) of claim 1, wherein R1 is —NH2, a (C1-6)alkylamino, or a di(C1-6)alkylamino. 3: The compound of formula (I) of claim 1, wherein R1 is selected from the group consisting of —NH2, —NHCH3, —NHC2H5, —N(CH3)2, —N(CH3)C2H5, —N(C2H5)2, pyrrolidinyl, piperidinyl, 4-methylpiperidinyl, morpholinyl, piperazinyl, and (N-methyl)piperazinyl. 4: The compound of formula (I) of claim 3, wherein R1 is —N(CH3)2. 5: The compound of formula (I) of claim 1, wherein each R2 is a hydrogen. 6: The compound of formula (I) of claim 1, wherein each R3 is a hydrogen. 7: The compound of formula (I) of claim 1, wherein X is S. 8: The compound of formula (I) of claim 1, wherein Y is S. 9: The compound of formula (I) of claim 1, which is 10: A method of inhibiting corrosion of a metallic substrate in contact with a corrosive medium, the method comprising:   introducing the compound of formula (I) of claim 1 into the corrosive medium in contact with the metallic substrate. 11: The method of claim 10, wherein the compound of formula (I) is 12: The method of claim 10, wherein the metallic substrate comprises steel. 13: The method of claim 10, wherein the metallic substrate comprises carbon steel. 14: The method of claim 10, wherein the corrosive medium comprises at least one inorganic acid, at least one inorganic salt, or both. 15: The method of claim 14, wherein the corrosive medium comprises CO2, brine, or both. 16: The method of claim 10, wherein the corrosive medium has a pH of 5 or below. 17: The method of claim 10, wherein the compound of formula (I) is introduced into the corrosive medium at a concentration of 0.1-200 ppm. 18: The method of claim 10, which has a corrosion inhibition efficiency in a range of 85-98%. 19: The method of claim 10, wherein the compound of formula (I) imparts a corrosion rate in a range of 0.8-2.5 mils penetration per year (mpy) to the metallic substrate. 20: The method of claim 10, wherein the metallic substrate is part of a system for oil or gas production, transportation, or refining.
法律状态
PENDING
专利类型码
A1
国别省市代码
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