Solubilization and desulphurization of high sulphur coal under mild condition with trifluoromethane sulphonic acid

ABSTRACT Effects of inorganic ions on the uptake of chloromercuribenzene-p-sulphonic acid (CMBS) were studied in microdissected pancreatic islets of non-inbred ob/ob-mice. Na2SO4 stimulated the total islet cell uptake of CMBS but decreased the amount of CMBS remaining in islets after brief washing with L-cysteine. CaCl2 stimulated both the total and the cysteine-non-displaceable uptake; the stimulatory effect of CaCl2 on the cysteine-non-displaceable CMBS uptake was counteracted by Na2SO4. NaCl, KCl or choline chloride had no significant effect on the total islet cell uptake of CMBS, whereas LiCl was stimulatory. It is concluded that β-cells resemble erythrocytes in having a permeation path for CMBS that is inhibited by SO42−. By analogy with existing models of the erythrocyte membrane, it is suggested that the SO42−-sensitive path leads to sulphydryl groups controlling monovalent cationic permeability in β-cells.

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Fe-N-C Artificial Enzyme: Activation of Oxygen for Dehydrogenation and Monoxygenation of Organic Substrates under Mild Condition and Cancer Therapeutic Application

10.26434/chemrxiv.6427643.v1 ◽

2018 ◽

Author(s):

Fei He ◽

Li Mi ◽

Yanfei Shen ◽

Toshiyuki Mori ◽

Songqin Liu ◽

...

Keyword(s):

Mild Condition ◽

Enzyme Activation ◽

Artificial Enzymes ◽

Organic Substrates ◽

Artificial Enzyme ◽

Therapeutic Application ◽

Highly Efficient ◽

Activation Of Oxygen

Developing highly efficient artificial enzymes that directly employ O<sub>2</sub> as terminal oxidant has long been pursued but has rarely achieved yet. We report Fe-N-C has unusual enzyme-like activity in both dehydrogenation and monoxygenation of organic substrates with ~100% selectivity by direct using O<sub>2</sub>.

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Efficient Catalyst for Hydroarylation Reaction of Styrene with Phenol to Obtain High DSP Selectivity in Mild Condition

Letters in Organic Chemistry ◽

10.2174/1570178614666170720111558 ◽

2018 ◽

Vol 15 (2) ◽

Cited By ~ 1

Author(s):

Vicna Kim ◽

Eun Ju Shin ◽

Hogeun Ahn ◽

Minchul Chung ◽

Sunghun Jung ◽

...

Keyword(s):

Mild Condition ◽

Efficient Catalyst

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An Efficient Synthesis of 2-Substituted Quinazolin-4(3H)-ones by Using Recyclable Wang Resin Supported Sulfonic Acid Catalyst

Letters in Organic Chemistry ◽

10.2174/1570178617999201109203731 ◽

2020 ◽

Vol 17 ◽

Author(s):

Kalyani K. ◽

Srinivasa Reddy Kallam

Keyword(s):

Sulfonic Acid ◽

Functional Group ◽

Acid Catalyst ◽

Sulphonic Acid ◽

Isatoic Anhydride ◽

Efficient Synthesis ◽

Wang Resin ◽

Polymer Supported ◽

High Yields

Abstract:: An efficient synthesis of 2-substituted Quinazolin-4(3H)-ones has been developed from isatoic anhydride with various amidoximes by using recyclable polymer supported sulphonic acid catalyst. Excellent functional group compatibil-ity and high yields are the important features of this protocol.

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Determination of S-hydroxyquinoline-5-sulphonic acid

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19581803 ◽

1958 ◽

Vol 23 (9) ◽

pp. 1803-1805

Author(s):

V. Velich

Keyword(s):

Sulphonic Acid

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Pulse polarographic study of the behaviour of some o,o'-dihydroxyazo-compounds

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19891219 ◽

1989 ◽

Vol 54 (5) ◽

pp. 1219-1226 ◽

Cited By ~ 3

Author(s):

Enric Casassas ◽

Miquel Esteban ◽

Santiago Alier

Keyword(s):

Carboxylic Acid ◽

Reaction Mechanisms ◽

Sulphonic Acid ◽

Base Catalysis ◽

Polarographic Study ◽

Acid Base ◽

Eriochrome Black T ◽

Naphthoic Acid ◽

Calcon Carboxylic Acid

The reduction of several o,o'-dihydroxyazo-compounds is studied by means of pulse polarographic techniques (DPP, NPP and RPP). The compounds studied are the following: 2-(2'-hydroxyphenylazo)-phenol (o,o'-dihydroxyazobenzene), 1-(2'-hydroxy-1'-naphthylazo)-2-naphthol-4-sulphonic acid (calcon or Eriochrome Blue Black R), 1-(2'-hydroxy-4'-sulpho-1'-naphthylazo)-2-hydroxy-3-naphthoic acid (calcon carboxylic acid), and 1-(1'-hydroxy-2'-naphthylazo)-6-nitro-2-naphthol-4-sulphonic acid (Eriochrome Black T). Correlations between Ip and Epand experimental variables (pH, T, conc.) and instrumental parameters (dropping time, t, and pulse magnitude, ΔE) are established. Reaction mechanisms formerly proposed are discussed on the basis of the new obtained results, and the ranges are defined where adsorption and/or acid-base catalysis are operative.

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Pd 3 Pb Nanosponges for Selective Conversion of Furfural to Furfuryl Alcohol under Mild Condition

Small Methods ◽

10.1002/smtd.202100400 ◽

2021 ◽

pp. 2100400

Author(s):

Minki Jun ◽

Heesu Yang ◽

Dongyong Kim ◽

Gi Joo Bang ◽

Minah Kim ◽

...

Keyword(s):

Mild Condition ◽

Furfuryl Alcohol ◽

Selective Conversion

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Updating Awareness and Information Aggregation

The B E Journal of Theoretical Economics ◽

10.1515/bejte-2018-0193 ◽

2020 ◽

Vol 0 (0) ◽

Author(s):

Spyros Galanis ◽

Stelios Kotronis

Keyword(s):

Mild Condition ◽

Private Information ◽

Dynamic Environment ◽

Information Aggregation ◽

Aggregate Information

AbstractThe ability of markets to aggregate information through prices is examined in a dynamic environment with unawareness. We find that if all traders are able to minimally update their awareness when they observe a price that is counterfactual to their private information, they will eventually reach an agreement, thus generalising the result of Geanakoplos and Polemarchakis (1982). Moreover, if the traded security is separable, then agreement is on the correct price and there is information aggregation, thus generalizing the result of Ostrovsky (2012) for non-strategic traders. We find that a trader increases her awareness if and only if she is able to become aware of something that other traders are already aware of and, under a mild condition, never becomes aware of anything more. In other words, agreement is more the result of understanding each other, rather than being unboundedly sophisticated.

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