Indolizine quaternary ammonium salt inhibitors, part III: insights into the highly effective low-toxicity acid corrosion inhibitor – synthesis and protection performance

2019 ◽  
Vol 43 (47) ◽  
pp. 18461-18475 ◽  
Author(s):  
Zhen Yang ◽  
Yefei Wang ◽  
Fengtao Zhan ◽  
Wuhua Chen ◽  
Mingchen Ding ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Acid Corrosion ◽  
Propargyl Alcohol ◽  
High Yield ◽  
Dipolar Cycloaddition ◽  
Acid Corrosion Inhibitor ◽  
Low Toxicity

Three indolizine derivatives (Di-BQC, QM-DiBQC, PyM-DiBQC) were prepared facilely in high yield via 1,3-dipolar cycloaddition. These compounds exhibit good inhibition for steel in concentrated acid without the synergism of propargyl alcohol (PA).

scholarly journals Correction: Indolizine quaternary ammonium salt inhibitors part II: a reinvestigation of an old-fashioned strong acid corrosion inhibitor phenacyl quinolinium bromide and its indolizine derivative

2019 ◽  
Vol 43 (43) ◽  
pp. 17123-17124
Author(s):  
Yefei Wang ◽  
Zhen Yang ◽  
Fengtao Zhan ◽  
Zhifeng LYu ◽  
Chengyou Han ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Acid Corrosion ◽  
Strong Acid ◽  
Acid Corrosion Inhibitor

Correction for ‘Indolizine quaternary ammonium salt inhibitors part II: a reinvestigation of an old-fashioned strong acid corrosion inhibitor phenacyl quinolinium bromide and its indolizine derivative’ by Yefei Wang et al., New J. Chem., 2018, 42, 12977–12989.

Indolizine quaternary ammonium salt inhibitors part II: a reinvestigation of an old-fashioned strong acid corrosion inhibitor phenacyl quinolinium bromide and its indolizine derivative

2018 ◽  
Vol 42 (15) ◽  
pp. 12977-12989 ◽  
Author(s):  
Yefei Wang ◽  
Zhen Yang ◽  
Fengtao Zhan ◽  
Zhifeng LYu ◽  
Chengyou Han ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Corrosion Inhibition ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Acid Corrosion ◽  
Strong Acid ◽  
Acid Corrosion Inhibitor

Anti-corrosion inhibition was dramatically improved by transforming heterocyclic ammonium inhibitors into their dimer indolizine derivatives.

Thiourea–Quaternary Ammonium Salt Catalyzed Asymmetric 1, 3-Dipolar Cycloaddition of Imino Esters To Construct Spiro[pyrrolidin-3,3′-oxindoles]

2016 ◽  
Vol 18 (19) ◽  
pp. 4774-4777 ◽  
Author(s):  
Jia-Xing Zhang ◽  
Hong-Yu Wang ◽  
Qiao-Wen Jin ◽  
Chang-Wu Zheng ◽  
Gang Zhao ◽  
...  
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Dipolar Cycloaddition ◽  
Imino Esters

Synthesis and evaluation of hexamethylenetetramine quaternary ammonium salt as corrosion inhibitor

2019 ◽  
Vol 70 (10) ◽  
pp. 1907-1916 ◽  
Author(s):  
Dexin Liu ◽  
Xiaolong Qiu ◽  
Minglu Shao ◽  
Jianchong Gao ◽  
Jiaju Xu ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt

Highly enantioselective 1,3-dipolar cycloaddition of imino esters with benzofuranone derivatives catalyzed by thiourea−quaternary ammonium salt

Tetrahedron ◽  
2018 ◽  
Vol 74 (52) ◽  
pp. 7485-7494 ◽  
Author(s):  
Ting Du ◽  
Zhaokun Li ◽  
Changwu Zheng ◽  
Guosheng Fang ◽  
Longhui Yu ◽  
...  
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Dipolar Cycloaddition ◽  
Imino Esters

Catalyst- and oxidant-free electrochemical para-selective hydroxylation of N-arylamides in batch and continuous-flow

2020 ◽  
Vol 22 (19) ◽  
pp. 6437-6443
Author(s):  
Cheng-Kou Liu ◽  
Meng-Yi Chen ◽  
Xin-Xin Lin ◽  
Zheng Fang ◽  
Kai Guo
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Continuous Flow ◽  
Quaternary Ammonium Salt ◽  
Selective Hydroxylation

A catalyst-, oxidant-, acidic solvent- and quaternary ammonium salt-free electrochemical para-selective hydroxylation of N-arylamides at rt in batch and continuous-flow was developed.

Synthesis and Performance of Polyoxy-ethylene Ester Quaternary Ammonium Salt

2013 ◽  
Vol 50 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Yong-Qiang Sun ◽  
Wen-Jing Li ◽  
Wan-Xu Wang ◽  
Qiu-Xiao Li ◽  
Wieslaw Hreczuch ◽  
...  
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
And Performance

Instability of Solutions of Quaternary Ammonium Permanganates in Dichloromethane

1997 ◽  
Vol 62 (6) ◽  
pp. 849-854 ◽  
Author(s):  
Vladislav Holba ◽  
Renata Košická
Keyword(s):  
Ammonium Salt ◽  
Rate Constants ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Activation Parameters ◽  
The Stability

The paper deals with instability of solutions of quaternary ammonium permanganates, QMnO4 (Q = tetraethyl-, tetra-1-propyl-, tetra-1-butyl-, tetra-1-pentyl-, tetra-1-octyl-, and cetyltrimethylammonium), in dichloromethane and presents the rate constants and activation parameters of the reduction of permanganate. Attention was paid to the properties of colloidal Mn(IV) intermediate. The stability of the solutions depends markedly on the quaternary ammonium salt used.

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