Metal ion oxidation. 6. Oxidative acetoxylation of aromatic compounds by silver(II) complexes in acetic acid

1978 ◽  
Vol 43 (13) ◽  
pp. 2613-2617 ◽  
Author(s):  
Klas Nyberg ◽  
Lars G. Wistrand
Keyword(s):  
Acetic Acid ◽  
Aromatic Compounds ◽  
Metal Ion ◽  
Oxidative Acetoxylation

scholarly journals Metal Ion Oxidation. IV. Oxidative Acetoxylation of Arenes by Bis-(2,2'-bipyridine)-silver(II) Peroxydisulfate in Acetic Acid.

1975 ◽  
Vol 29b ◽  
pp. 629-630 ◽  
Author(s):  
Klas Nyberg ◽  
Lars-Göran Wistrand ◽  
Carl-Gunnar Swahn ◽  
Anna-Britta Hörnfeldt ◽  
Rolf Servin ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Metal Ion ◽  
Oxidative Acetoxylation

Adsorption of metal ion and aromatic compounds by anionic surfactant-coated particles of titanium dioxide

1998 ◽  
Vol 144 (1-3) ◽  
pp. 201-206 ◽  
Author(s):  
Kunio Esumi ◽  
Hiroshi Hayashi ◽  
Yoshifumi Koide ◽  
Tsuneo Suhara ◽  
Hiroshi Fukui
Keyword(s):  
Titanium Dioxide ◽  
Anionic Surfactant ◽  
Aromatic Compounds ◽  
Metal Ion ◽  
Coated Particles

Zum stoffwechsel von aromaten, II. über die muconsäurespaltung von einfachen o-diphenolen / on the metabolism of aromatic compounds, ii * the muconic acid scission of simple o-diphenols

1973 ◽  
Vol 28 (11-12) ◽  
pp. 662-674 ◽  
Author(s):  
Günther Schulz ◽  
Erich Hecker
Keyword(s):  
Acetic Acid ◽  
Sulfuric Acid ◽  
Ethyl Acetate ◽  
Peracetic Acid ◽  
Aromatic Compounds ◽  
Time Course ◽  
Protocatechuic Acid ◽  
Uv Light ◽  
Steric Effects ◽  
Muconic Acid

Abstract The preparation of substituted cis,cis-muconic acids by oxidative ring scission of simple o-di-phenols with peracetic acid is investigated. Scission of pyrocatechol (1) to cis,cis-muconic acid (2) gives optimal yields, if acetic acid or ethyl acetate is used as solvent and if the solution is 15-20% with respect to sulfuric acid free peracetic acid comprising a one molar excess of oxidant. Under similar conditions, 3-tosylamino-pyrocatechol yields with peracetic acid the hitherto unknown α-tosylamino-cis,cis-muconic caid (18). 18 may be converted to α-tosylamino-traras,trans-muconic acid (19) by means of iodine, UV light or heating. From protocatechuic acid (4) under similar conditions not β-carboxy-cis,cis-muconic acid (5) is obtained, but rather β-carboxy-mucono-lactone (6 b, γ-carboxymethyl-β-carboxy-Δα-butenolide). As yet, this lactone has been accessible only from an isomer of β-carboxy-cis,cis-muconic acid, the latter being obtainable by enzymatic scission of protocatechuic acid (4). Steric effects are responsible for both, the formation of the free cis,cis-muconic acids 2 and 18 from pyrocatechol (1) and α-tosylamino-pyrocatechol, and the formation of the γ-lactone 6 b instead of β -carboxy-cis,cis-muconic acid by scission of protocatechuic acid (4). The time course of the reactions shows that - compared to pyrocatechol (1) - a 3-tosylamino-group enhances the peracetic acid scission, whereas a 4-carboxygroup as in 4 slows it down

ChemInform Abstract: ANODIC CHLORINATION OF AROMATIC COMPOUNDS IN ACETIC ACID

1974 ◽  
Vol 5 (51) ◽  
pp. no-no
Author(s):  
M. MASTRAGOSTINO ◽  
G. CASALBORE ◽  
S. VALCHER
Keyword(s):  
Acetic Acid ◽  
Aromatic Compounds
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