ChemInform Abstract: Tin Cobalt Carbonyl Compounds as Catalysts for Ring-Opening of Oxiranes by Secondary and Tertiary Alcohols at Ambient Temperature

ChemInform ◽  
2010 ◽  
Vol 23 (21) ◽  
pp. no-no
Author(s):  
H. SAMAIN ◽  
J.-F. CARPENTIER ◽  
A. MORTREUX ◽  
F. PETIT
Keyword(s):  
Ambient Temperature ◽  
Carbonyl Compounds ◽  
Ring Opening ◽  
Cobalt Carbonyl ◽  
Tertiary Alcohols

Direct Asymmetric α-Hydroxylation of Cyclic α-Branched Ketones through Enol Catalysis

Synlett ◽  
2018 ◽  
Vol 30 (01) ◽  
pp. 49-53 ◽  
Author(s):  
Benjamin List ◽  
Grigory Shevchenko ◽  
Gabriele Pupo
Keyword(s):  
Natural Products ◽  
Phosphoric Acid ◽  
Carbonyl Compounds ◽  
Tertiary Alcohols ◽  
Chiral Phosphoric Acid

Enantiopure α-hydroxy carbonyl compounds are common scaffolds in natural products and pharmaceuticals. Although indirect approaches towards their synthesis are known, direct asymmetric methodologies are scarce. Herein, we report the first direct asymmetric α-hydroxylation of α-branched ketones through enol catalysis, enabling a facile access to valuable α-keto tertiary alcohols. The transformation, characterized by the use of nitrosobenzene as the oxidant and a new chiral phosphoric acid as the catalyst, delivers a good scope and excellent enantioselectivities.

Ambient-Temperature Synthesis of Primary Amines via Reductive Amination of Carbonyl Compounds

ACS Catalysis ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 7763-7772 ◽  
Author(s):  
Chao Xie ◽  
Jinliang Song ◽  
Manli Hua ◽  
Yue Hu ◽  
Xin Huang ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Carbonyl Compounds ◽  
Reductive Amination ◽  
Primary Amines ◽  
Temperature Synthesis

scholarly journals Binuclear Rhenium and Manganese Carbonyl Compounds Containing Hetero-Mercaptanes

2012 ◽  
Vol 25 (1) ◽  
pp. 62-70 ◽  
Author(s):  
Md Anwarul Hoque ◽  
Md Arzu Miah ◽  
Md Nurul Abser ◽  
Abul K Azad ◽  
Kamrun N Khan ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Spectral Data ◽  
1H Nmr ◽  
Metal Atom ◽  
Carbonyl Compounds ◽  
Chemical Society ◽  
Mass Spectral Data ◽  
Heterocyclic Ligands ◽  
Mass Spectral ◽  
Manganese Carbonyl

Treatment of 2-Mercaptothiazoline, 2-Mercaptobenzimidazole, 2-Mercapto-1- methylimidazole with [M2(CO)10] (M = Re and Mn) at ambient temperature in presence of decarbonylating reagent Me3NO give the complexes [Mn2(?-?2-C3H4NS2)2(CO)6] (1), [Re2(?-?2-C3H4NS2)2(CO)6] (2), [Mn2(?-?2-C7H5SN2)2(CO)6] (3), [Re2(?-?2- C7H5SN2)2(CO)6] (4), [Re2(?-?2-C4H5N2S)2(CO)6] (5) and [Re2(?1-C4H5N2SH)(CO)9] (6) respectively. All the compounds have been characterized by IR, 1H NMR and mass spectral data. The heterocyclic ligands are expected to be coordinated to two or single metal atom through the nitrogen and sulfur atoms or via only sulfur atom.DOI: http://dx.doi.org/10.3329/jbcs.v25i1.11775 Journal of Bangladesh Chemical Society, Vol. 25(1), 62-70, 2012> 

Supported RuB amorphous alloy mediated 1 atm hydrogenation of carbonyl compounds under ambient temperature

2008 ◽  
Vol 9 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Hong-Bing Ji ◽  
Yue-Ying Huang ◽  
Li-Xia Pei ◽  
Xing-Dong Yao
Keyword(s):  
Amorphous Alloy ◽  
Ambient Temperature ◽  
Carbonyl Compounds

scholarly journals Anhydrous Titanium(III) chloride as a New Lewis-Acid Catalyst for Ring Opening of Epoxides with Aromatic Amines

2007 ◽  
Vol 2 (2) ◽  
pp. 1934578X0700200
Author(s):  
Suchitra Bhatt ◽  
Sandip K. Nayak
Keyword(s):  
Ambient Temperature ◽  
Lewis Acid ◽  
Aromatic Amines ◽  
Ring Opening ◽  
Acid Catalyst ◽  
Amino Alcohols ◽  
Azide Ion ◽  
Ring Opening Of Epoxides ◽  
Lewis Acid Catalyst

Anhydrous titanium(III) chloride was found to be a simple and efficient Lewis acid catalyst for ring opening of epoxides at ambient temperature. The reaction proceeded smoothly with anilines as well as azide ion as nucleophiles to give the corresponding β-amino alcohols and β-azido alcohols in moderate to good yields.

Lead(IV) acetate oxidative ring-opening of 2,3-epoxy primary alcohols: a new entry to optically active α-hydroxy carbonyl compounds

2011 ◽  
Vol 52 (31) ◽  
pp. 4017-4020 ◽  
Author(s):  
Enrique Alvarez-Manzaneda ◽  
Rachid Chahboun ◽  
Esteban Alvarez ◽  
Ramón Alvarez-Manzaneda ◽  
Pedro E. Muñoz ◽  
...  
Keyword(s):  
Carbonyl Compounds ◽  
Ring Opening ◽  
Optically Active ◽  
Primary Alcohols ◽  
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