Novel transition metal free oxidation of aromatic aldehydes to carboxylic acids using N-methylpyrrolidin-2-one hydrotribromide (MPHT) as catalyst and hydrogen peroxide as oxidant

2007 ◽  
Vol 8 (1) ◽  
pp. 83-87 ◽  
Author(s):  
Jomy K. Joseph ◽  
Suman L. Jain ◽  
Bir Sain
Keyword(s):  
Hydrogen Peroxide ◽  
Transition Metal ◽  
Carboxylic Acids ◽  
Aromatic Aldehydes ◽  
Metal Free ◽  
Free Oxidation

tert-Butylhydroperoxide-Mediated Oxidation of Carbazole-3-carboxyaldehydes

Synlett ◽  
2018 ◽  
Vol 29 (08) ◽  
pp. 1084-1086
Author(s):  
Ramu Meesala ◽  
Ahmad Arshad ◽  
Mallikarjuna Pichika ◽  
Mohd Mordi ◽  
Sharif Mansor
Keyword(s):  
Aqueous Solution ◽  
Transition Metal ◽  
Carboxylic Acids ◽  
Metal Free ◽  
Tert Butylhydroperoxide ◽  
Free Oxidation ◽  
Mediated Oxidation

Oxidation of carbazole-3-carboxyaldehydes promoted by a 70% aqueous solution of tert-butylhydroperoxide leads to the corresponding carbazole-3-carboxylic acids in good yields. This transition-metal-free oxidation protocol is attractive for the synthesis of pharmaceutically important carbazole analogues.

Transition metal-free, visible-light-mediated construction of α,β-diamino esters via decarboxylative radical addition at room temperature

2019 ◽  
Vol 6 (13) ◽  
pp. 2245-2249 ◽  
Author(s):  
Guibing Wu ◽  
Jingwen Wang ◽  
Chengyu Liu ◽  
Maolin Sun ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Carboxylic Acids ◽  
Room Temperature ◽  
Radical Addition ◽  
Metal Free ◽  
Radical Coupling

A metal-free photoredox catalyzed decarboxylative radical coupling of free-carboxylic acids and glyoxylic oximes was developed to synthesize α,β-diamino acids.

Transition Metal‐Free, Base‐Induced Arylation of Amino Acids: Synthesis of N ‐( para ‐Substituted phenyl)amino‐2‐carboxylic acids

2020 ◽  
Vol 5 (28) ◽  
pp. 8644-8648 ◽  
Author(s):  
Adejoke D. Osinubi ◽  
Josephat U. Izunobi ◽  
Olayinka T. Asekun ◽  
Oluwole B. Familoni ◽  
Xiaoguang Bao
Keyword(s):  
Amino Acids ◽  
Transition Metal ◽  
Carboxylic Acids ◽  
Free Base ◽  
Metal Free

Transition metal-free decarboxylative alkylation reactions

2016 ◽  
Vol 14 (46) ◽  
pp. 10763-10777 ◽  
Author(s):  
Ping Liu ◽  
Guanghui Zhang ◽  
Peipei Sun
Keyword(s):  
Transition Metal ◽  
Carboxylic Acids ◽  
Metal Free ◽  
Recent Advances ◽  
Alkylation Reactions

This review summarizes recent advances in the transition metal-free decarboxylative alkylation of carboxylic acids and their derivatives.

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