760-93-0Relevant articles and documents
Synthesis of 2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl methacrylates
Krivonogov,Chernyshenko,Kozlova,Yakovleva,Spirikhin,Abdrakhmanov,Plechev,Sivkova,Battalov
, p. 141 - 143 (2005)
2,4-Dioxo-1,2,3,4-tetrahydropyrimidin-5yl methacrylates were synthesized for the first time by reaction of 5-hydroxyuracil derivatives with methacrylic anhydride. 5-Hydroxyuracil derivatives are involved in this reaction in the dioxo form. 2005 Pleiades Publishing, Inc.
METHOD FOR PRODUCING (METH)ACRYLIC ACID ANHYDRIDE
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Paragraph 0032-0040, (2021/05/28)
PROBLEM TO BE SOLVED: To provide an industrially useful method for producing a (meth)acrylic acid anhydride capable of producing a (meth)acrylic acid anhydride with high yield and high purity. SOLUTION: There is provided a method for producing a (meth)acrylic acid anhydride by reacting a (meth)acrylic acid alkali metal salt and sulfonyl chloride in an organic solvent. The (meth)acrylic acid alkali metal salt includes lithium (meth)acrylate, sodium (meth)acrylate, potassium (meth)acrylate or the like. Among these (meth)acrylic acid alkali metal salts, preferable are sodium acrylate, potassium acrylate, sodium methacrylate and potassium methacrylate in consideration of market feedability, reactivity and easiness of treatment after the reaction. In addition, the sulfonyl chloride includes benzenesulfonyl chloride, p-toluenesulfonyl chloride and methanesulfonyl chloride. SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT
METHOD FOR PRODUCING CARBOXYLIC ACID ANHYDRIDE AND METHOD FOR PRODUCING CARBOXYLIC ACID ESTER
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Paragraph 0075, (2017/04/18)
Provided is a production method whereby corresponding carboxylic acid anhydrides and carboxylic acid esters can be obtained at high yield from various carboxylic acids even without a solvent and near room temperature. A method for producing a carboxylic acid anhydride represented by formula (II), the method comprising reacting a compound represented by formula (I) and a carboxylic acid in the presence of a Group II metal compound having an ionic ligand containing an oxygen atom. A method for producing a carboxylic acid ester, the method comprising reacting a carboxylic acid anhydride produced by the aforementioned method and an alcohol. In formula (I), R1 represents a C1-20 hydrocarbon group. In formula (II), R2 represents a C1-20 hydrocarbon group.