cas 590-46-5, Betaine hydrochloride | Articles data

Articles about 590-46-5Total 9 be found

Betaine hydrochloride salt synthesis method
Betaine hydrochloride synthetic method, are sequentially added to the reaction bottle benzenedimethanol acetic acid, catalyst, ethanol, then heating up 100 — 115 °C reflux, molecular sieve dehydration backflow place, 2 — 8 hours after the completion of the reaction, the reaction solution is washed with water 2 times, divided chloroethyl ethyl acetate by reduced pressure distillation, the chloropropyl acetic acid ethyl ester are added to a reaction in the bottle, add a certain amount of water, the beginning of the access trimethylamine gas, maintained in the 20 — 45 °C, 2 — 6 hours of reaction, the temperature of the hydrochloric acid is then added to the hydrolysis, distilling the water and ethanol, cooling 10 — 15 °C crystallization centrifugation to obtain the betaine hydrochloride. The present invention made from the chloroacetic acid and ethanol raw material synthetic a chloroethyl ethyl acetate, to obtain pure chloro ethyl acetate through and dimethylamine synthesizing betaine ethyl ester hydrochloride, in the presence of hydrochloride heating water out to ethanol, concentrated liquid cooling to separate out betaine hydrochloride, prepared by the method of the betaine hydrochloride purity 99% or more, the yield of 97% or more, and there will not be any inorganic salt solid waste.
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Paragraph 0008-0013

(2019/07/08)

Method for preparing betaine hydrochloride through catalytic hydrolysis reaction
The invention discloses a method for preparing betaine hydrochloride through catalytic hydrolysis reaction. The method comprises the following steps: adding betaine ester hydrochloride in a reaction vessel, then adding water and a Ti-SiO2-Al2O3 molecular sieve catalyst, carrying out hydrolysis reaction at a certain temperature, carrying out suction filtration after completing reaction, and drying,thus obtaining the betaine hydrochloride, wherein a mass ratio of the water to the betaine ester hydrochloride is (1 to 2):1, and a molar ratio of Ti to SiO2 to Al2O3 in the Ti-SiO2-Al2O3 molecular sieve catalyst is 1:1:1. According to the method disclosed by the invention, preparation of the betaine hydrochloride is realized through high-efficiency catalytic hydrolysis of the betaine ester hydrochloride, the yield of a product is up to 98 percent or more, the quality is stable, the content of burning residue of the product is lower than 0.1 percent, the catalyst can be recycled, alcohol obtained through hydrolysis can be recycled and reutilized, industrial production can be conveniently carried out, and many problems of large chloroacetic acid consumption, long production period, high burning residue of the product, large emission of three wastes and the like existing in a traditional technology are overcome.
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Paragraph 0027; 0028; 0029

(2018/12/14)

Compound containing quaternary ammonium salt ions and peroxycarboxylic acid groups in structure as well as preparation method and application of compound
The invention provides a compound containing quaternary ammonium salt ions and peroxycarboxylic acid groups in structure and belongs to the field of organic compounds. The compound provided by the invention has the characteristics of quaternary ammonium salt and peroxides at the same time, can be continuously used, is small in corrosion, has the disinfection performance of an efficient disinfectorand can also be used as an ordinary quaternary ammonium salt disinfector after peroxy acid in the structure is disinfected and decomposed; and in presence of lipophilic alkyl groups on the quaternaryammonium salt groups, the ability of molecules passing through the bacterial cell walls is improved, so that the disinfector can act on the extrocytoplasmic surfaces and destroy the cell walls to reach the purpose of disinfection and can rapidly pass through the cell walls to enter the interiors of cells to destroy cytoplasm, so that the disinfection speed of the peroxides is greatly increased, and the effect of complete sterilization is achieved.
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Paragraph 0118; 0119; 0120

(2018/11/22)

In vitro visualization of betaine aldehyde synthesis and oxidation using hyperpolarized magnetic resonance spectroscopy
Real-time monitoring of betaine aldehyde metabolism at high temporal resolution was accomplished using a hyperpolarized choline analog and 13C-NMR. This represents the first observation of an aldehyde intermediate on hyperpolarized MR and opens the way for kinetic studies of oxidase/dehydrogenase enzymes in vitro and in vivo.
Allouche-Arnon, Hyla,Gamliel, Ayelet,Sosna, Jacob,Gomori, J. Moshe,Katz-Brull, Rachel
supporting information
p. 7076 - 7078
(2013/09/02)

A dramatic effect of the ionic liquid structure in esterification reactions in protic ionic media
Bronsted acidic ionic liquids (ILs) have been synthesized and investigated as catalysts in esterification and transesterification reactions: simple and non-corrosive salts characterized by aliphatic cations associated with an "acidic" anion (in particular, [HSO4]-) gave the higher yields. A quite good correlation between IL acidity (H 0) and catalytic ability was found although also the hydrophilic nature of the ionic medium probably affects the process efficiency.
Chiappe, Cinzia,Rajamani, Sunita,D'Andrea, Felicia
p. 137 - 143
(2013/02/25)

METHOD OF PRODUCING BETAINE COMPOUND
A process for preparing Anhydrous Betaine and Betaine Hydrochloride comprises treating a chloroacetic acid with sodium carbonate, and then dropping liquid trimethylamine to obtain Betaine products, wherein ion exchange resin and decompression process are utilized to assure the product having high purity and yield rate.
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Page/Page column 2-3

(2010/02/15)

Method of synthesis of betaine esters
The present invention relates to an environmentally acceptable method of producing glycine betaine esters that produces no toxic by-products during the synthesis. The method produces only product, recyclable material for reuse in the process, and recovered material which can be sold for uses, such as fertilizer.
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Page column 2; 3; 6

(2008/06/13)

REACTION OF (POLYFLUOROALKYL)TRIMETHYLAMMONIUM SALTS WITH HYDROXIDE ION
(Polyfluoroalkyl)trimethylammonium iodides (1a-d), RfCF2CH2N+Me3I- (Rf; a = HCF2, b = CF3, c = H(CF2)3, d = H(CF2)5), reacted easily with an equimolar amount of sodium hydroxide in water at 20 deg C to give Z isomers of (polyfluoro-1-alkenyl)trimethylammonium iodides (2a-d), RfCF=CHN+Me3I-, quantitatively.However, treatment of 1 with 3 equimolar amounts of sodium hydroxide yielded different products depending on the length of the Rf chain: 1a gave (2-oxo-3,3-difluoropropyl)trimethylammonium iodide (3a), which had a great tendency to form the hydrate 4a; 1b produced a mixture of the analogous ketone 3b and betaine 6; 1c and 1d afforded the corresponding 1H,ωH-perfluoroalkanes 7c and 7d, respectively, together with 6.
Yamanaka, Hiroki,Yamashita, Seiji,Fukunishi, Koushi,Kuwabara, Masaki,Ishihara, Takashi,Nomura, Mototeru
p. 185 - 194
(2007/10/02)

Radioimmunoassay method for determining calcitonin and radioactive tracer for use therein
A hentriacontapeptide of the formula (I) STR1 a radioactive labeled hentriacontapeptide of the formula (I), useful in a radioimmunoassay method and a radioimmunoassay method for determining calcitonin.
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(2008/06/13)