ChemInform Abstract: Manganese Triacetate Oxidation of Phenolic Schiff′s Bases: Synthesis of 2-Arylbenzoxazoles.

ChemInform ◽  
2010 ◽  
Vol 30 (17) ◽  
pp. no-no
Author(s):  
Rajender S. Varma ◽  
Dalip Kumar
Keyword(s):  
Manganese Triacetate

Mn(OAc)3 induced C-4 arylations of quinazoline 3-oxides with arylboronic acids

Synthesis ◽  
2021 ◽  
Author(s):  
Rashinikumar Samandram ◽  
Meliha Çetin Korukçu ◽  
Necdet Coskun
Keyword(s):  
Aromatic Rings ◽  
Arylboronic Acids ◽  
Manganese Triacetate ◽  
High Yields

The use of manganese triacetate as an oxidant component in the C-4 arylations of 2-aryl-quinazoline 3-oxides with arylboronic acids is reported. The new protocol was applied to prepare new 2,4-diarylated quinazoline 3-oxides in good to high yields. The method was shown to tolerate various substituents on both aromatic rings, and no complications as deoxygenation and rearrangement to quinazolin-4(3H)-one was observed.

Transition-Metal-Promoted Oxidative Cyclization To Give 1,2,4-Trisubstituted Carbazole Scaffolds

Synthesis ◽  
2019 ◽  
Vol 51 (24) ◽  
pp. 4625-4634
Author(s):  
Milena Szewczyk ◽  
Małgorzata Ryczkowska ◽  
Sławomir Makowiec
Keyword(s):  
Transition Metal ◽  
Oxidative Cyclization ◽  
Oxidizing Agent ◽  
Reaction Intermediate ◽  
Manganese Triacetate ◽  
Unexpected Reaction ◽  
Fused Ring ◽  
Acid Esters

Herein, we describe the synthesis of a 1,2,4-trisubstituted carbazole core from 5-(1H-indol-3-yl)-3-oxopentanoic acid esters or amides. For oxidative cyclization, we tested two different approaches. First, we used manganese triacetate as a conventional moderate oxidizer to ensure the radical course of the reaction. Second, we examined the use of a more complex oxidizing agent I2/Me(OTf)3. In both cases, formation of a fused-ring carbazole system with a 2-hydroxyl and 1-carboxylic substituent were observed. In connection with the formation of an unexpected reaction intermediate, mechanistic aspects of the process were discussed.

Formation of acyl radicals by reaction of manganese triacetate with aldehydes

1969 ◽  
Vol 18 (8) ◽  
pp. 1698-1700 ◽  
Author(s):  
G. I. Nikishin ◽  
M. G. Vinogradov ◽  
S. P. Verenchikov
Keyword(s):  
Manganese Triacetate ◽  
Acyl Radicals

scholarly journals The sonochemical arylation of malonic esters mediated by manganese triacetate

2001 ◽  
Vol 8 (2) ◽  
pp. 119-122 ◽  
Author(s):  
Maria Meciarova ◽  
Stefan Toma ◽  
Jean-Louis Luche
Keyword(s):  
Manganese Triacetate

Manganese triacetate as an efficient catalyst for bisperoxidation of styrenes

2015 ◽  
Vol 13 (5) ◽  
pp. 1439-1445 ◽  
Author(s):  
Alexander O. Terent'ev ◽  
Mikhail Yu. Sharipov ◽  
Igor B. Krylov ◽  
Darya V. Gaidarenko ◽  
Gennady I. Nikishin
Keyword(s):  
Catalytic Amount ◽  
Efficient Catalyst ◽  
Butyl Hydroperoxide ◽  
Manganese Triacetate

Bisperoxidation of styrenes with tert-butyl hydroperoxide in the presence of a catalytic amount of Mn(OAc)3.

Manganese triacetate oxidative lactonisation of electron-rich stilbenes possessing catechol and resorcinol substitution (resveratrol analogues)

2002 ◽  
Vol 43 (17) ◽  
pp. 3151-3155 ◽  
Author(s):  
N.F. Thomas ◽  
K.C. Lee ◽  
Thomas Paraidathathu ◽  
J.F.F. Weber ◽  
K. Awang
Keyword(s):  
Manganese Triacetate ◽  
Resveratrol Analogues
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