28854-39-9Relevant articles and documents
Preparation method of bio-derived isobornyl (meth) acrylate
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Paragraph 0029-0032; 0037-0040; 0045-0048, (2021/01/15)
The invention belongs to the technical field of photocatalytic organic synthesis, and discloses a preparation method of bio-derived isobornyl (meth) acrylate. The method comprises the following steps:adding camphene, (methyl) acrylic acid, a polymerization inhibitor and a catalyst into a transparent reactor, uniformly mixing, placing under UV light irradiation, carrying out a stirring reaction, and carrying out reduced pressure rotary evaporation after the reaction is finished to obtain isobornyl acrylate and isobornyl methacrylate. According to the method, isobornyl (meth) acrylate is prepared by adopting a photocatalysis method, wherein the reaction conditions are mild, the reaction time is short, side reactions and byproducts are avoided, the conditions of high temperature, high pressure and the like are not needed, the separation and purification are simple and easy to operate, and the isobornyl (meth) acrylate can be obtained. According to the invention, isobornyl (meth) acrylateis prepared from a natural renewable resource camphene, so that a new application direction is opened up for the natural renewable resource vegetable oil, the economic value of the vegetable oil is improved, and the method has a good popularization effect on the development of agriculture and forestry economy.
Acrylate monomer preparation using alkali metal alkoxides as ester interchange catalysts
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, (2008/06/13)
The present invention relates to a process to prepare alkyl (meth)acrylate esters from corresponding alkyl/methacrylate esters using an alkali metal alkoxide as an ester interchange catalyst to produce an alkyl (meth)acrylate ester monomer product C The present invention further relates to the use of bromide and iodide salts as free radical polymerization inhibitors. The present invention further relates to the use of a noninterfering alcohol or polyol that prevents anionic polymerization reactions of reactant ester B and/or alkyl (meth)acrylate product C. The present invention further relates to a process for inhibiting polymerization of (meth)acrylates being synthesized in a transesterification or ester-ester interchange reaction system
Engineering reactions in crystalline solids: Radical pairs in crystals of dialkyl 1,3-acetonedicarboxylates
Yang, Zhe,Garcia-Garibay, Miguel A.
, p. 1963 - 1965 (2007/10/03)
(Equation presented) Crystalline dialkyl 1,3-acetonedicarboxylates give dialkyl succinates in high chemical yields by combination of α-carbonyl radical pairs produced by photochemical decarbonylation. It is proposed that the solid-state reaction depends on the exothermicity of two consecutive bond cleavage processes. It is also suggested that the efficiency of radical formation in the solid state is determined by the effect of substituents on bond dissociation energies and radical-stabilization abilities.