scholarly journals Aldol condensation of refluxing acetone on CaC2 achieves efficient coproduction of diacetone alcohol, mesityl oxide and isophorone

RSC Advances ◽  
2018 ◽  
Vol 8 (53) ◽  
pp. 30610-30615 ◽  
Author(s):  
Xuebing Xu ◽  
Hong Meng ◽  
Yingzhou Lu ◽  
Chunxi Li
Keyword(s):  
Aldol Condensation ◽  
Mesityl Oxide ◽  
Diacetone Alcohol

The refluxing reaction of acetone on CaC2 realizes an efficient coproduction of diacetone alcohol, mesityl oxide, isophorone and C2H2.

Some Physical Properties of Diacetone Alcohol, Mesityl Oxide and Methyl Isobutyl Ketone

1952 ◽  
Vol 56 (8) ◽  
pp. 1013-1016 ◽  
Author(s):  
E. T. J. Fuge ◽  
S. T. Bowden ◽  
W. J. Jones
Keyword(s):  
Physical Properties ◽  
Methyl Isobutyl Ketone ◽  
Mesityl Oxide ◽  
Methyl Isobutyl ◽  
Isobutyl Ketone ◽  
Diacetone Alcohol

Phase equilibrium in acetone-water-mesityl oxide-diacetone alcohol four-component system

2012 ◽  
Vol 46 (2) ◽  
pp. 113-119 ◽  
Author(s):  
N. N. Kulov ◽  
N. P. Slaikovskaya ◽  
V. A. Lotkhov
Keyword(s):  
Phase Equilibrium ◽  
Mesityl Oxide ◽  
Component System ◽  
Diacetone Alcohol ◽  
Acetone Water

Simultaneous production of diacetone alcohol and mesityl oxide from acetone using reactive distillation

2007 ◽  
Vol 62 (18-20) ◽  
pp. 5567-5574 ◽  
Author(s):  
Suman Thotla ◽  
Vishal Agarwal ◽  
Sanjay M. Mahajani
Keyword(s):  
Reactive Distillation ◽  
Mesityl Oxide ◽  
Simultaneous Production ◽  
Diacetone Alcohol

A comparative ion chemistry study of acetone, diacetone alcohol, and mesityl oxide

1986 ◽  
Vol 64 (10) ◽  
pp. 1979-1988 ◽  
Author(s):  
Afaf Kamar ◽  
Alexander Baldwin Young ◽  
Raymond Evans March
Keyword(s):  
Infrared Multiphoton Dissociation ◽  
Mesityl Oxide ◽  
Alternative Form ◽  
Dehydration Process ◽  
Ion Chemistry ◽  
Bimolecular Reactions ◽  
Common Structure ◽  
Diacetone Alcohol ◽  
Multiphoton Dissociation ◽  
Ion Species

The evolution of ion species by unimolecular and bimolecular reactions, both concurrent and sequential, has been investigated for each of 2-propanone, d6-2-propanone, 4-hydroxy-4-methyl-2-pentanone, and 4-methyl-3-penten-2-one. Infrared multiphoton dissociation (IRMPD) has been used in order to differentiate between gaseous ionic isomers. It is concluded that the isomeric species, protonated 2-propanone dimer and protonated 4-hydroxy-4-methyl-2-pentanone, both of m/z 117, are of different structures. The ion species C6H11O+ of m/z 99, and its perdeuterated analogue, which is observed in all three systems, may exist in two forms, one of which is unique to 2-propanone while an alternative form appears to be common to 4-hydroxy-4-methyl-2-pentanone and 4-methyl-3-penten-2-one. The ion species of m/z 83 (C5H7O+) which is observed only in the latter two systems only could not be differentiated and may have a common structure. In the protonated dimers of 2-propanone and 4-hydroxy-4-methyl-2-pentanone, evidence obtained by IRMPD indicates that the activation energy for dedimerization (134 kJ mol−1) is less than that for the dehydration process.

Hydrotalcite-assisted cataluminescence: A new approach for sensing mesityl oxide in aldol condensation of acetone

2015 ◽  
Vol 207 ◽  
pp. 498-503 ◽  
Author(s):  
Zenghe Li ◽  
Wei Xi ◽  
Chao Lu
Keyword(s):  
Aldol Condensation ◽  
Mesityl Oxide ◽  
New Approach

The aldol condensation of acetophenone with acetone

1991 ◽  
Vol 69 (2) ◽  
pp. 339-344 ◽  
Author(s):  
J. Peter Guthrie ◽  
Xiao-Ping Wang
Keyword(s):  
Alkaline Solution ◽  
Aldol Condensation ◽  
Equilibrium Constants ◽  
Mesityl Oxide ◽  
Initial Compound ◽  
Aqueous Alkaline Solution ◽  
First Order ◽  
Related Series ◽  
Carbon Acid ◽  
Condensation Of Acetophenone

The kinetics and equilibria involved in the aldol condensation of acetophenone, acting as carbon acid, and acetone have been studied in aqueous alkaline solution. The reactions are all first order in hydroxide, with rate and equilibrium constants (defined for enone as initial compound) of: k12 = 3.3 × 10−4 M−1 s−1, k21 = 3.2 × 10−5 M−1 s−1K12 = 10.2, k23 = 8.0 × 10−2 M−1 s−1, k32 = 3.3 × 10−4 M−2 s−1, K32 = 4.1 × 10−3 M−1. The series methylbutenal, mesityl oxide, and 3-methyl-1-phenyl-2-buten-1-one can now be compared with regard to regularities and deviations from regularity. The related series cinnamaldehyde, benzalacetone, and chalcone also provides insights into the behaviour of this system. Key words: aldol, dehydration, equilibrium, acetophenone, acetone.

Nickel(II) and copper(II) complexes of the macrocyclic ligand 5,7,7-Trimethyl-1,4,8,11-tetraazacyclotetradec-4-ene

1975 ◽  
Vol 28 (2) ◽  
pp. 275 ◽  
Author(s):  
NF Curtis ◽  
TN Milestone
Keyword(s):  
Ground State ◽  
Macrocyclic Ligand ◽  
Mesityl Oxide ◽  
Singlet Ground State ◽  
Triplet Ground State ◽  
Diacetone Alcohol ◽  
Square Planar

Nickel(II) and copper(II) complexes of 1,4,8,11-tetraazaundecane, (L), react with acetone, diacetone alcohol or mesityl oxide to form complexes of the macrocyclic ligand 5,7,7-trimethyl-1,4,8,11-tetra- azacyclotetradec-4-ene. For the nickel(II) cation, singlet ground state, square planar, salts are formed with poorly coordinating anions such as tetrachlorozincate, and triplet ground state, pseudoocta- hedral compounds with coordinating anions. These occur as trans compounds (macrocycle in planar coordination) for the unidentate anions NCS-, N3- and Cl- and as cis compounds (macrocycle in folded coordination)for the chelating anions acetylacetonate and oxalate. Different configurations of the chiral nitrogen centres are optimum for planar and for folded coordination of the macrocycle.

scholarly journals Preparation of Triacetoneamine, I

1977 ◽  
Vol 32 (3) ◽  
pp. 328-337 ◽  
Author(s):  
G. Sosnovsky ◽  
M. Konieczny
Keyword(s):  
Gas Chromatography ◽  
Calcium Chloride ◽  
Room Temperature ◽  
Mesh Size ◽  
Mesityl Oxide ◽  
Diacetone Alcohol ◽  
Weight Yield ◽  
Optimized Conditions

The preparation of triacetoneamine (1) by the condensation of acetone with ammonia in the presence of calcium chloride at room temperature is investigated. In addition to 1, acetonin (8), diacetone alcohol (4), mesityl oxide, and diacetoneamine (7) are formed during the reaction. The progress of the reaction is monitored by gas chromatography. The effects of the extent and the rate of stirring, the amount of ammonia introduced on the critical first day of the reaction, and the mesh size and the amount of calcium chloride on the purity and weight yield of 1 are studied. The yield of 1 is maximized by recovery of the unreacted acetone. The reaction at room temperature under optimized conditions is described.

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