Dehydroxylated amination accompanied by 1,2-sulfur immigration

2019 ◽  
Vol 6 (5) ◽  
pp. 643-647 ◽  
Author(s):  
Yong Cui ◽  
Tao Lu ◽  
Zhihao Shi ◽  
Jie Feng
Keyword(s):  
Free System ◽  
Group Participation ◽  
Metal Free ◽  
System P ◽  
Neighbouring Group Participation

A sulfur neighbouring-group participation N-alkylation method is presented, which enables the simultaneous C–O cleavage, C–S immigration and C–N formation performed in a metal free system.

A tunable precious metal-free system for selective oxidative esterification of biobased 5-(hydroxymethyl)furfural

2019 ◽  
Vol 21 (12) ◽  
pp. 3464-3468 ◽  
Author(s):  
Kirill S. Kozlov ◽  
Leonid V. Romashov ◽  
Valentine P. Ananikov
Keyword(s):  
Precious Metal ◽  
Free System ◽  
Oxidative Esterification ◽  
Metal Free ◽  
Hydroxymethyl Furfural ◽  
System P

Oxidative esterification of biomass-derived 5-(hydroxymethyl) furfural (HMF) and furfural and their derivatives has been performed using a simple MnO2/NaCN system.

Selective Oxidation of Alcohols Catalyzed by a Transition Metal-Free System of NHPI/DDQ/NaNO2

2011 ◽  
Vol 32 (1) ◽  
pp. 118-122 ◽  
Author(s):  
Lipeng ZHOU ◽  
Chaofeng ZHANG ◽  
Tao FANG ◽  
Bingbing ZHANG ◽  
Ying WANG ◽  
...  
Keyword(s):  
Transition Metal ◽  
Selective Oxidation ◽  
Free System ◽  
Metal Free ◽  
Oxidation Of Alcohols

Metal free decarboxylative aminoxylation of carboxylic acids using a biphasic solvent system

2021 ◽  
Vol 19 (1) ◽  
pp. 273-278
Author(s):  
Göran Schulz ◽  
Andreas Kirschning
Keyword(s):  
Carboxylic Acids ◽  
Solvent System ◽  
Radical Scavenger ◽  
Synthetic Approach ◽  
Metal Free ◽  
System P

The oxidative radical decarboxylation of carboxylic acids with TEMPO as radical scavenger in a biphasic solvent system is reported which is successfully used in a new synthetic approach for the antidepressants indatraline.

Transition metal free, green and facile halogenation of ketene dithioacetals using a KX–oxidant system

2021 ◽  
Author(s):  
Vishakha Rai ◽  
Ganesh Shivayogappa Sorabad ◽  
Mahagundappa Rachappa Maddani
Keyword(s):  
Transition Metal ◽  
Ambient Temperature ◽  
Metal Free ◽  
Ketene Dithioacetals ◽  
System P ◽  
Oxidative Halogenation ◽  
Potassium Halide

A facile oxidative halogenation of α-oxo ketene dithioacetals is achieved by using a potassium halide and an oxidant combination under transition metal free conditions at ambient temperature.

scholarly journals Neighbouring Group Participation in the Methanolysis of a Vicinal Diepoxide

1999 ◽  
Vol 23 (6) ◽  
pp. 356-357
Author(s):  
James R. Hanson ◽  
Peter B. Hitchcock ◽  
Ismail Kiran
Keyword(s):  
Hydroxy Group ◽  
Group Participation ◽  
Neighbouring Group Participation

The tetracyanoethylene catalysed methanolysis of 17β-acetoxy-4β,5β:6α,7α-diepoxyandrostane afforded 17β-acetoxy-4α,7α-oxido-5β-hydroxy-6β-methoxyandrostane in which the methanolysis product of the 6α,7α-epoxide has participated in the cleavage of the 4β,5β-epoxide; the reaction is modified however by an adjacent 3β-hydroxy group.

Hydrogen evolution reaction highly electrocatalyzed by MWCNT/N-octylpyridinum hexafluorophosphate metal-free system

2021 ◽  
Vol 372 ◽  
pp. 137859
Author(s):  
Leyla Gidi ◽  
Roxana Arce ◽  
José Ibarra ◽  
M. Isaacs ◽  
M.J. Aguirre ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Free System ◽  
Metal Free

scholarly journals Solvent-free hydrogenation of cyclohexene over Rh-TUD-1 at ambient conditions

RSC Advances ◽  
2018 ◽  
Vol 8 (60) ◽  
pp. 34370-34373 ◽  
Author(s):  
Mhamed Benaissa ◽  
Abdullah M. Alhanash ◽  
Ahmed T. Mubarak ◽  
Morad Eissa ◽  
Taher Sahlabji ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Room Temperature ◽  
Hydrogenation Reaction ◽  
Solvent Free ◽  
Ambient Conditions ◽  
Total Conversion ◽  
Free System ◽  
Liquid Phase Hydrogenation ◽  
System P ◽  
Solvent Free System

Total conversion of cyclohexene to cyclohexane was achieved in a liquid phase hydrogenation reaction at room temperature, 1 atm H2 pressure and solvent-free system.

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