5205-93-6Relevant articles and documents
Preparation method of N-dimethylaminopropyl(meth)acrylamide
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, (2019/12/02)
The invention discloses a preparation method of N-dimethylaminopropyl(meth)acrylamide. The preparation method comprises the following steps: firstly, carrying out alcohol derivatization on 3-dimethylamino-1-propanol; reacting the derivatization product with (meth)acrylamide in the presence of an organic solvent and an alkali to obtain the N-dimethylaminopropyl(meth)acrylamide. Compared with a conventional preparation method adopted in the market, the preparation method disclosed by the invention has the advantages that the reaction conditions are mild, the operation is simple and convenient, the control is easy, the preparation cost is relatively low, and the commercial value is relatively high.
PREPARATION OF N,N-(DI)ALKYLAMINOALKYL(METH)ACRYLAMIDE OR N,N-(DI)ALKYLAMINOALKYL (METH)ACRYLATE AND THE QUATERNARY AMMONIUM SALTS THEREOF AS FLOCCULATING AIDS AND GELLING AGENTS
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Paragraph 0081; 0088, (2018/02/01)
N,N-(di)alkylaminoalkyl(meth)acrylamide or N,N-(di)alkylaminoalkyl (meth)acrylate and/or a quaternary ammonium salt thereof are prepared with a low content of a compound of formula (IV) wherein R5 in each case is a linear, branched or cyclic alkyl radical, an aryl radical which may also be substituted by one or more alkyl groups, the linear, cyclic or branched alkyl radical may have a length of 1-12 carbon atoms and is, for example, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, hexyl, heptyl, octyl, isooctyl, nonyl, decyl, undecyl, dodecyl.
METHOD FOR CONTINUOUSLY PRODUCING ALKYLAMINO(METH)ACRYLAMIDES
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Page/Page column 4, (2012/01/13)
The invention relates to a process for continuously preparing N-alkyl(meth)acrylamides by reacting alkyl (meth)acrylates with high-boiling amines. A catalyst activation and specific workup technique achieve product qualities which have not been achieved to date. In addition, very high space-time yields and overall yields can be achieved.
Continuous Method for Producing Amides of Ethylenically Unsaturated Carboxylic Acids
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Page/Page column 9-10, (2011/05/03)
The invention relates to a continuous method for producing amides, according to which at least one carboxylic acid of formula (I) R3-COON (I), wherein R3 is an optionally substituted alkenyl group comprising between 2 and 4 carbon atoms, is reacted with at least one amine of formula (II) HNR1R2 (II), wherein R1 and R2 are independently hydrogen or a hydrocarbon radical comprising between 1 and 100 C atoms, to form an ammonium salt and/or a Michael adduct, and said ammonium salt is then reacted to form a carboxylic acid amide. under microwave irradiation in a reaction pipe, the longitudinal axis of the pipe being oriented in the direction of propagation of the microwaves of a monomode microwave applicator.
Method For Producing Alkaline (Meth)Acrylamides
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Page/Page column 8, (2010/03/02)
The invention relates to a method for producing alkaline amides or imides of ethylenically unsaturated C3 to C6 carboxylic acids by reacting amines that contain at least one primary and/or secondary amino group and at least one tertiary amino group with ethylenically unsaturated C3 to C6 carboxlic acids to form an ammonium salt and said ammonium salt is subsequently converted into the alkaline amide or imide by means of microwave radiation, with the proviso that the primary and/or secondary amino group is devoid of alkoxy groups.
Process for making a (meth)acrylamide monomer
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Page/Page column 4- 5, (2008/12/07)
A method for making a (meth)acrylamide monomer, comprises reacting a (meth)acrylate ester with an amino-functional compound in an organic solvent in the presence of a transesterification catalyst.
Ruthenium-catalyzed carbonylation of allene: Direct synthesis of methacrylates and methacrylamides
Zhou, Da-Yang,Yoneda, Eiji,Onitsuka, Kiyotaka,Takahashi, Shigetoshi
, p. 2868 - 2869 (2007/10/03)
Carbonylation reactions of allene in alcohols and amines in the presence of a ruthenium carbonyl catalyst under mild conditions gave methacrylates and methacrylamides, respectively, in good yields with an atom economy of 100%.
REACTION BETWEEN METHYL(METH)ACRYLATE AND N,N-DIMETHYLAMINO-PROPYLAMINE
Shirshin, K.V.,Kazantsev, O.A.,Zil'berman, E.N.,Danov, S.M.,Salov, V.N.
, p. 1148 - 1152 (2007/10/02)
A study was made of the reaction between methyl(meth)acrylate and N,N-dimethylaminopropylamine at 20-240 deg C to establish the effect that reagent ratio and structure, temperature, and catalyst type have on the competing reactions in the system.Addition of amino groups at the C=C bonds and amidation of the ester groups were found to be the principal interactions.It was shown that addition reactions predominated at lower temperatures (up to 125 deg - 150 deg C).Lead(II) acetate was observed to accelerate amidation just as effectively as known organotin catalysts.
Production of N-substituted (meth)acrylamides from (meth)acrylates and amines over a metal alkoxide catalyst
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, (2008/06/13)
A one-step process for the preparation of N-substituted (meth)acrylamides from the reaction of a (meth)acrylate ester and an amine over a catalytic amount of a metal alkoxide catalyst is described. These catalysts, such as stannous dimethoxide, lead dimethoxide, zinc dimethoxide, copper dimethoxide and bismuth tributoxide give high selectivity to the N-substituted (meth)acrylamides and little selectivity of the Michael adduct propionate ester, which would predominate in the absence of these catalysts. Also, these catalysts are less costly than organo metal catalysts commonly used.
Preparation of N-substituted acrylamide monomers having cationic substituents
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, (2008/06/13)
Reaction of a beta-aminopropionamide with an acrylic acid or its derivative provides an N-substituted acrylamide monomer having cationic substituents attached thereto. The instant reaction occurs under mild processing conditions at a temperature between about 160° C. and 230° C.
