SU1697395A1 - 4-quinolylbenzimidazole quaternary salts as inhibitors of steel corrosion in hydrochloric acid solution - Google Patents

4-quinolylbenzimidazole quaternary salts as inhibitors of steel corrosion in hydrochloric acid solution

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Publication number
SU1697395A1
SU1697395A1 SU4790145/04A SU4790145A SU1697395A1 SU 1697395 A1 SU1697395 A1 SU 1697395A1 SU 4790145/04 A SU4790145/04 A SU 4790145/04A SU 4790145 A SU4790145 A SU 4790145A SU 1697395 A1 SU1697395 A1 SU 1697395A1
Authority
SU
USSR - Soviet Union
Prior art keywords
quinolylbenzimidazole
quaternary salts
chnso
inhibitors
hydrochloric acid
Prior art date
Application number
SU4790145/04A
Other languages
Russian (ru)
Inventor
И.В. Романенко
А.К. Шейнкман
Original Assignee
Институт физико-органической химии и углехимии АН УССР
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Институт физико-органической химии и углехимии АН УССР filed Critical Институт физико-органической химии и углехимии АН УССР
Priority to SU4790145/04A priority Critical patent/SU1697395A1/en
Application granted granted Critical
Publication of SU1697395A1 publication Critical patent/SU1697395A1/en

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  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

FIELD: organic chemistry. SUBSTANCE: invention relates to heterocyclic compounds, in part, 4-quinolylbenzimidazole quaternary salts - 4-(benzimidazolyl-2')-quinoline diethylsulfates or its 2-phenyl- or 2-methyl-substituents. Synthesis is carried out by short time heating the corresponding substituted quinolines as hydrates with diethylsulfate in medium of an organic solvent. Yield, %; m. p., C; empirical formula; inhibitory activity at 30 and 90 C in 10% HCl (concentration is 0.8 g/l, solvent - AM, ratio = 1: 8): a) 20; 265-267; CHNSO; 85.2 and 83.0; b) 36.8; above 300; CHNSO; 86.6 and 87.4; c) 29; 210-212; CHNSO•HO;; 99.8 and 99.6. EFFECT: improved method of synthesis, increased yield, enhanced effectiveness. 2 tbl
SU4790145/04A 1990-02-12 1990-02-12 4-quinolylbenzimidazole quaternary salts as inhibitors of steel corrosion in hydrochloric acid solution SU1697395A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4790145/04A SU1697395A1 (en) 1990-02-12 1990-02-12 4-quinolylbenzimidazole quaternary salts as inhibitors of steel corrosion in hydrochloric acid solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4790145/04A SU1697395A1 (en) 1990-02-12 1990-02-12 4-quinolylbenzimidazole quaternary salts as inhibitors of steel corrosion in hydrochloric acid solution

Publications (1)

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SU1697395A1 true SU1697395A1 (en) 1998-04-10

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SU4790145/04A SU1697395A1 (en) 1990-02-12 1990-02-12 4-quinolylbenzimidazole quaternary salts as inhibitors of steel corrosion in hydrochloric acid solution

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SU (1) SU1697395A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104513997A (en) * 2013-09-26 2015-04-15 南京工业大学 1-ethyl-2-substituted benzimidazole carbon steel pickling corrosion inhibitor and application thereof
CN104630796A (en) * 2013-11-06 2015-05-20 南京工业大学 Benzimidazole carbon steel pickling corrosion inhibitor and application thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104513997A (en) * 2013-09-26 2015-04-15 南京工业大学 1-ethyl-2-substituted benzimidazole carbon steel pickling corrosion inhibitor and application thereof
CN104630796A (en) * 2013-11-06 2015-05-20 南京工业大学 Benzimidazole carbon steel pickling corrosion inhibitor and application thereof

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