Ball-Milling Synthesis of Sulfonyl Quinolines via Coupling of Haloquinolines with Sulfonic Acids

2021 ◽  
Author(s):  
Xiao-Wen Liu ◽  
Jia-Qian Wang ◽  
Hui Ma ◽  
Qi Zhu ◽  
Long-Yong Xie
Keyword(s):  
Ball Milling ◽  
Sulfonic Acid ◽  
Practical Approach ◽  
Sulfonic Acids ◽  
Metal Solvent

An efficient and practical approach for the synthesis of sulfonyl quinolines via ball milling promoted coupling of haloquinolines with sulfonic acid under metal-, solvent- and additive-free conditions has been developed....

Effect of surface acidity on the catalytic activity and deactivation of supported sulfonic acids during dehydration of methanol to DME

2020 ◽  
Vol 44 (39) ◽  
pp. 16810-16820
Author(s):  
Rosanna Viscardi ◽  
Vincenzo Barbarossa ◽  
Daniele Mirabile Gattia ◽  
Raimondo Maggi ◽  
Giovanni Maestri ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Sulfonic Acid ◽  
Water Resistance ◽  
Surface Acidity ◽  
Acid Catalyst ◽  
Acid Sites ◽  
Sulfonic Acids ◽  
Effect Of Surface

Superiorty of the supported sulfonic acid catalyst in terms of the water resistance and efficiency of the acid sites compared to the commercial reference.

scholarly journals Initial steps in the degradation of benzene sulfonic acid, 4-toluene sulfonic acids, and orthanilic acid in Alcaligenes sp. strain O-1

1990 ◽  
Vol 1 (1) ◽  
pp. 55-64 ◽  
Author(s):  
Thomas Thurnheer ◽  
Daniel Z�rrer ◽  
Otmar H�glinger ◽  
Thomas Leisinger ◽  
Alasdair M. Cook
Keyword(s):  
Sulfonic Acid ◽  
Sulfonic Acids ◽  
Benzene Sulfonic Acid ◽  
Orthanilic Acid

Edge-iodine/sulfonic acid-functionalized graphene nanoplatelets as efficient electrocatalysts for oxygen reduction reaction

2014 ◽  
Vol 2 (23) ◽  
pp. 8690-8695 ◽  
Author(s):  
Jong Yeol Baek ◽  
In-Yup Jeon ◽  
Jong-Beom Baek
Keyword(s):  
Oxygen Reduction Reaction ◽  
Ball Milling ◽  
Electrocatalytic Activity ◽  
Sulfonic Acid ◽  
Sulfur Trioxide ◽  
Reduction Reaction ◽  
Graphene Nanoplatelets ◽  
Functionalized Graphene ◽  
Cycle Stability ◽  
Polar Solvents

Edge-iodine/sulfonic acid-functionalized graphene nanoplatelets (ISGnPs) were prepared by two-step sequential ball-milling of graphite in the presence of iodine and sulfur trioxide. The resultant ISGnPs are highly dispersible in various polar solvents and the ORR performance of ISGnPs in an alkaline medium is superior to commercial Pt/C in terms of electrocatalytic activity and cycle stability.

Methylation of polymethylbenzenesulfonic acids by hexamethylbenzene and pentamethylbenzenesulfonic acid in concentrated sulfuric acid

1988 ◽  
Vol 66 (1) ◽  
pp. 162-167 ◽  
Author(s):  
Hans Cerfontain ◽  
Ankie Koeberg-Telder
Keyword(s):  
Sulfuric Acid ◽  
Sulfonic Acid ◽  
Sulfonic Acids ◽  
Substrate Reactivity ◽  
Concentrated Sulfuric Acid

The methylation of a series of polymethylbenzenes (PoMB's) or their sulfonic acids by added hexamethylbenzene (HMB) and pentamethylbenzene-1-sulfonic acid (PeMB-1-S) as reagents in 95.5 and 98.4% H2SO4 as solvent has been studied under homogeneous conditions. HMB effects methylation of 2,4,6-trimethylbenzene-1-sulfonic acid (2,4,6-TrMB-1-S), 2,3,4,6-tetramethylbenzene-1-sulfonic acid (2,3,4,6-TeMB-1-S), and 2,3,5,6-TeMB-1-S, but not of the sulfonic acids of 1,3-dimethylbenzene (1,3-DMB), 1,2,3-TrMB, 1,2,4-TrMB, and 1,2,3,4-TeMB. PeMB-1-S is less reactive as methylating reagent than HMB. The observed substrate reactivity towards methylation by HMB was observed to decrease in the order [Formula: see text], and towards methylation by PeMB-1-S to decrease in the order [Formula: see text]. On the basis of a comparison of these orders of substrate reactivities with those predicted for the series of the PoMB-1-sulfonates and the corresponding PoMB's, it is concluded that the substrate species undergoing methylation are the PoMB's and not the corresponding sulfonates.

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