cas 999-55-3, ALLYL ACRYLATE | Articles data

Articles about 999-55-3Total 16 be found

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DIRECT CATALYTIC PARTIAL OXIDATION OF ALLYL ETHER
A process for forming allyl acrylate, comprising contacting allyl ether in solution with a solvent with one or more oxidants in the presence of a mesoporous manganese oxide (MnOx) catalyst.
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Paragraph 0040-0041; 0043-0044; 0046-0047; 0049-0050; 0052

(2018/10/11)

Synthetic method of allyl acrylate
The invention discloses a new synthetic method of allyl acrylate. According to the method, an organic silicon monomer with functional groups is used, and the allyl acrylate is prepared under the soft reaction condition. The synthetic method of the allyl acrylate includes three steps that (1) acryloxytrimethylsilane is synthesized; (2) allyloxy silane is synthesized; and (3) the acryloxytrimethylsilane and the allyloxy silane are mixed. According to the raw materials used in a reaction, chlorine elements are fully converted into inorganic salt, low-boiling-point chloride like phosphorus trichloride is not used, and it is guaranteed that the chlorine elements are not contained in a prepared product; reaction conditions are soft, and the requirement for the equipment is not high; purification is easy, boiling points of all components are large in difference, and reduced pressure distillation separation is easy; water washing is not needed, and amplification is easy; and trifluoromethanesulfonic acid serves as a catalyst, the high acidity is achieved, and double bonds cannot be damaged.
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Paragraph 0019

(2017/04/28)

Synthesis of unsaturated esters via highly efficient esterification catalyzed by polymer grafted quarternary ammonium salts as triphase catalysts
A series of unsaturated esters were prepared via condensation of sodium carboxylates and alkenyl halide under the condition of macroporous polystyrene grafted quarternary ammonium salt as recyclable phase transfer catalyst, NaI as co-catalyst, Cu powder as inhibitor and H2O as solvent. Under optimal conditions, products yields are 78.2～ 96.0%. The catalyst can be convenient recycled and reutilized for about five times without losing its activity obviously.
Liang, Zheng Yong,Wang, Li Li,Liu, Hui,Huang, Jin Shuo
p. 1558 - 1561
(2013/09/12)

Solvent-free biocatalytic interesterification of acrylate derivatives
The ability of diverse commercial lipases and whole cells (fungal resting cells) to synthesise allyl and dichloropropyl acrylate from allyl dodecanoate through an interesterification process is presented. The process was carried out without solvent in a conventional batch system. The best biocatalyst among those studied was the commercial enzyme CALB (Candida antarctica lipase B immobilised onto a macroporous acrylic resin). The reaction was sensitive to water activity, and a decrease in the yield was observed at the highest activity studied. CALB could also be applied to diverse acrylic derivatives, although the yields decreased using either ethyl methacrylate or acrylic acid.
Yara-Varón, Edinson,Eras Joli, Jordi,Torres, Mercè,Sala, Nuria,Villorbina, Gemma,Méndez, Jonh Jairo,Canela-Garayoa, Ramon
p. 86 - 90
(2013/01/15)

A modular rearrangement approach toward medicinally relevant phosphinic structures
An unprecedented coupling of a P - C and a C - C bond-forming event In a practical operation was developed to access medicinally relevant phosphinic structures. The strategy relies on an Ireland-Claisen rearrangement triggered by the phospha-Michael addition of silyl phosphonltes to allyl acrylates. This protocol was extended to a more versatile three-component variant that utilizes phosphinic acids, acryloyl chlorides, and allylic alcohols as starting materials.
Rogakos, Vassilis,Georgiadis, Dimitris,Dive, Vincent,Yiotakis, Athanaslos
supporting information; experimental part
p. 4696 - 4699
(2009/12/08)

PROCESS FOR PREPARING ACRYLIC ACID
A process for preparing acrylic acid, in which an acrylic acid-comprising product gas mixture obtained by catalytic gas phase partial oxidation of a C3 precursor of acrylic acid is fractionally condensed in a condensation column provided with internals ascending into itself with side draw removal of crude acrylic acid and with liquid phase draw removal of acrylic acid-comprising acid water, and acrylic acid present in acid water is taken up into an extractant and then removed from the extractant and recycled into the condensation column, or taken up in aqueous metal hydroxide, or sent to further purification of the crude acrylic acid.
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Page/Page column 16

(2008/12/07)

METHOD FOR PRODUCING CYCLIC UNSATURATED COMPOUND
The present invention provides a method for producing a cyclic unsaturated compound, which sufficiently suppresses generation of acyclic unsaturated compounds and permits excellent yield and reaction rate. Such a method for producing a cyclic unsaturated compound is a method for producing a cyclic unsaturated compound by reacting an a, ?-unsaturated carboxylic acid with an unsaturated organic compound, wherein the method comprises a step of reacting the a, ?-unsaturated carboxylic acid with the unsaturated organic compound in the presence of a catalyst.
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Page/Page column 83, 92

(2008/06/13)

PROCESS FOR HETEROGENEOUSLY CATALYZED PARTIAL GAS PHASE OXIDATION OF PROPYLENE TO ACRYLIC ACID
A process for heterogeneously catalyzed partial gas phase oxidation of propylene to acrylic acid, in which the starting reaction gas mixture comprises cyclopropane as an impurity and the acrylic acid, after conversion from the product gas mixture into the condensed phase, is removed with the aid of a crystallative removal.
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Page/Page column 20-22

(2008/06/13)

Process for removing methacrylic acid from liquid phase comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component
A process for removing methacrylic acid from liquid phase P comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component in which the removal is effected by crystallization, the acrylic acid accumulating in the crystals formed and the methacrylic acid in the remaining mother liquor.
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Page/Page column 8-9

(2008/06/13)

Method for producing acrylic acid from propane, in the presence of molecular oxygen
The invention concerns the production of acrylic acid from propane in the presence of molecular oxygen. Said method consists in passing a gas mixture comprising propane, molecular oxygen, water vapour and, optionally, an inert gas, on a catalyst of formula (I) Mo1VaTebNbcSidOx to oxidize propane into acrylic acid, the propane/molecular oxygen mol ratio in the initial gas mixture being not less than 0.5.
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Page/Page column 6-10

(2008/06/13)

Method for the producing acrylic acid from propane, in the absence of molecular oxygen
The invention concerns a method for producing acrylic acid from propane, in the absence of molecular oxygen which consists in: a) introducing a gas mixture free of molecular oxygen and comprising propane, water vapour, and, optionally, an inert gas, into a first reactor with fluidized catalytic bed, b) at the first reactor output, separating the gases from the catalyst, c) recycling the catalyst into a regenerator, d) introducing the gases into a second reactor with fluidized catalytic bed, e) at the second reactor output, separating the gases from the catalyst and recovering acrylic acid contained in the separated gases, f) recycling the catalyst into the regenerator, and g) reintroducing the regenerated catalyst from the regenerator into the first and second reactors.
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Page/Page column 4-7

(2008/06/13)

Allylation of Alcohols and Carboxylic Acids with Allyl Acetate Catalyzed by [Ir(cod)2]+BF4- Complex
A facile method for the synthesis of allyl alkyl ethers from alcohols with allyl acetate was developed by the use of [Ir(cod)2] +BF4- complex. For instance, the reaction of allyl acetate with n-octyl alcohol in the presence of a catalytic amount of [Ir(cod)2]+BF4- complex afforded allyl octyl ether in quantitative yield. Allyl carboxylates were also prepared by the exchange reaction between carboxylic acids and allyl acetate in good yields. The [Ir(cod)2]+BF4- complex catalyzed the reaction of alkyl and aromatic amines with allyl acetate to lead to the corresponding allylamines in fair to good yields.
Nakagawa, Hideto,Hirabayashi, Tomotaka,Sakaguchi, Satoshi,Ishii, Yasutaka
p. 3474 - 3477
(2007/10/03)

γ-lactone formation in the addition of benzenesulfonyl bromide to diene and enyne esters
The gem-dialkyl effect has been used to promote the formation of functionalized γ-lactones in the addition of benzenesulfonyl bromide to diene and enyne esters. Introduction of 3 tool % of pyridine into the reactions increases the yields of lactones produced from tertiary esters. Formation of the C(α)-C(β) bond of γ-lactones has been achieved in both C(α)→C(β) and Cβ→C(α) radical cyclization directions.
Wang, Chen,Russell, Glen A.
p. 2066 - 2069
(2007/10/03)

Phase-Transfer Catalyzed Synthesis of 2-Propenyl Esters of Carboxylic Acids
The tetrabutylammonium bromide catalyzed esterification of salts of carboxylic acids 1 a-e with 2-propenyl halides 2 a, b is described.Keywords.Esterification; Phase-transfer catalysis; 2-Propenyl esters.
Klan, Petr,Benovsky, Petr
p. 469 - 472
(2007/10/02)

The 'Baylis - Hillman reaction' mechanism and applications revisited
It is shown that reaction of aryl, benzyl, alkyl and functionalised alkyl acrylic esters with benzaldehyde, in the presence of 1,4-diazabicyclo[2.2.2] octane, strongly depends upon the electronic and steric effects of the ester part. This influence is also observed in condensation of furfuraldehyde. Moreover, for the first time, it is shown that the overall condensation is equilibrated.
Fort, Yves,Berthe, Marie Christine,Caubere, Paul
p. 6371 - 6384
(2007/10/02)

The effects of the carbonyl group in the cyclization of 1-hexenyl radicals
The radical chain cyclization of allyl ether derivatives promoted by tosyl halides and light is suppressed by the presence of one carbonyl group conjugated with the double bond (acrylic double bond).
Serra,Da Silva Correa,Do Vale
p. 9463 - 9488
(2007/10/02)