Hydration of 3-methyl-3-norcarene epoxides under acid and basic catalysis conditions

1982 ◽  
Vol 31 (7) ◽  
pp. 1456-1458
Author(s):  
�. Kh. Kazakova ◽  
L. N. Surkova ◽  
S. V. Andreeva
Keyword(s):  
Basic Catalysis

scholarly journals Exploring alkaline routes for production of TEOS-based consolidants for carbonate stones using amine catalysts

2021 ◽  
Vol 45 (8) ◽  
pp. 3833-3847 ◽  
Author(s):  
Alexandra Rodrigues ◽  
Bruno Sena da Fonseca ◽  
Ana Paula Ferreira Pinto ◽  
Susana Piçarra ◽  
M. Fátima Montemor
Keyword(s):  
High Potential ◽  
Basic Catalysis ◽  
Amine Catalysts

TEOS-based sols following basic catalysis routes were explored and showed high potential and important advantages for consolidation of soft limestone.

Faujasites exchanged with alkylammonium cations applied to basic catalysis

2019 ◽  
Vol 282 ◽  
pp. 159-168 ◽  
Author(s):  
Karina Arruda Almeida ◽  
Peter Hammer ◽  
Dilson Cardoso
Keyword(s):  
Basic Catalysis

scholarly journals Switching acidic and basic catalysis through supramolecular functionalization in a porous 3D covalent imine-based material

2019 ◽  
Vol 9 (21) ◽  
pp. 6007-6014 ◽  
Author(s):  
Javier Luis-Barrerra ◽  
Rafael Cano ◽  
Ghazaleh Imani-Shakibaei ◽  
Javier Heras-Domingo ◽  
Javier Pérez-Carvajal ◽  
...  
Keyword(s):  
Basic Catalysis ◽  
Acid And Base ◽  
Acidic And Basic Catalysis

Non-covalent inclusion of small acid and base molecules in an imine structure based on COF-300 nanoparticles is presented.

Aqueous catalyst systems for the water-gas shift reaction. 2. Mechanism of basic catalysis

1983 ◽  
Vol 22 (3) ◽  
pp. 431-435 ◽  
Author(s):  
Douglas C. Elliott ◽  
Richard T. Hallen ◽  
L. John Sealock
Keyword(s):  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Basic Catalysis ◽  
Catalyst Systems ◽  
Shift Reaction ◽  
Water Gas

Preparation of polyimide/silica hybrid material by sol-gel process under basic catalysis: Comparison with acid conditions

2008 ◽  
Vol 46 (18) ◽  
pp. 1891-1902 ◽  
Author(s):  
Benoît Didier ◽  
Régis Mercier ◽  
Nicole D. Alberola ◽  
Corine Bas
Keyword(s):  
Hybrid Material ◽  
Sol Gel ◽  
Basic Catalysis ◽  
Sol Gel Process ◽  
Silica Hybrid

THE ACIDIC AND BASIC CATALYSIS OF ACETYLATION REACTIONS

1928 ◽  
Vol 50 (8) ◽  
pp. 2305-2311 ◽  
Author(s):  
James B. Conant ◽  
George M. Bramann
Keyword(s):  
Basic Catalysis ◽  
Acidic And Basic Catalysis

scholarly journals Activated carbon xerogels derived from phenolic oil: Basic catalysis synthesis and electrochemical performances

2020 ◽  
Vol 205 ◽  
pp. 106427 ◽  
Author(s):  
Angela Sanchez-Sanchez ◽  
Maria Teresa Izquierdo ◽  
Sandrine Mathieu ◽  
Ghouti Medjahdi ◽  
Vanessa Fierro ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performances ◽  
Basic Catalysis ◽  
Carbon Xerogels

scholarly journals The base catalysed prototropy of substituted acetones

1940 ◽  
Vol 176 (964) ◽  
pp. 88-113 ◽  
Keyword(s):  
Water Molecule ◽  
Acid Catalysis ◽  
Dissociation Constants ◽  
Zero Order ◽  
Acetoacetic Ester ◽  
Acetoacetic Acid ◽  
Kinetic Measurements ◽  
Basic Catalysis ◽  
Carboxylate Anions ◽  
Hydroxyl Ion

Kinetic measurements have been made at 25° on the catalysed halogenation of the following ketones: acetone, acetonylacetone, monochloroacetone, monobromoacetone, as . dichloroacetone and acetylacetone. In all cases the reactions are of zero order with respect to the halogen and exhibit general basic catalysis. For the first two ketones general acid catalysis is also detectable. For each ketone the catalytic constants k B of four carboxylate anions are related to the dissociation constants K A of the corresponding acids by an equation of the type k B = G (1/ K A ) α , where G and the α are constants for a given ketone. The catalytic constants measured cover a range of about 10 8 . Examination of the results (together with those of Pedersen for the bromination of acetoacetic ester and acetoacetic acid) shows that the exponent α decreases steadily from 0.88 to 0.48 as the reactivity of the ketone increases. The catalytic coefficients of the water molecule are given approximately by the equations valid for the carboxylate anions, but the hydroxyl ion is in each case much less effective as a catalyst than these equations predict.

Acidic and Basic Catalysis

1954 ◽  
pp. 241-270
Author(s):  
Martin Kilpatrick
Keyword(s):  
Basic Catalysis ◽  
Acidic And Basic Catalysis
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