Kurabayashi, Hideaki published the artcileThe Mizoroki-Heck reaction in mesoionic 1-butyl-3-methyltetrazolium-5-olate, Category: esters-buliding-blocks, the publication is Tetrahedron (2021), 132450, database is CAplus.
The 1-butyl-3-methyltetrazolium-5-olate, a mesoionic compound, exists as a liquid at room temperature and can be used as a polar solvent for the Mizoroki-Heck reaction, wherein it has been proven to be a superior solvent to other solvents. The reaction of iodobenzene with Et acrylate in the presence of palladium acetate in mesoionic liquid 1-butyl-3-methyltetrazolium-5-olate at 40°C for 24 h gave Et cinnamate in 78% yield in the absence of ligands, while the use of other solvents, such as [bmim][BF4], [bmim][PF6], and DMF gave lower yields (43%, 37%, and 17%, resp.) under the same conditions. Heck-type coupling reactions of electron-deficient or electron-rich aryl iodides RC6H4I (R = H, 2-Me, 3-NO2, 4-OMe, etc.) and bromobenzene with olefins such as Et acrylate, styrene, acrylonitrile, etc. (15 examples, 7%-97%) were performed in 1-butyl-3-methyltetrazolium-5-olate. When a phosphine ligand was added to the reaction mixture, aryl bromides could be used, and the mesoionic liquid containing the catalysts could be reused at least five times.
Tetrahedron published new progress about 103-26-4. 103-26-4 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester,Protease,Tyrosinase,Natural product, name is Methyl 3-phenyl-2-propenoate, and the molecular formula is C10H10O2, Category: esters-buliding-blocks.
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