REACTION OF MALEIC ACID WITH CERTAIN ALDEHYDE-KETONE-FURFURAL CONDENSATION PRODUCTSPETER L. ROSAMILIA
A quick and convenient method has been developed for the milligram determination of some carbamate insecticides. The sample is allowed to react with a calculated excess of (0.02N) N-Bromosuccinimide (NBS) reagent in the presence of glacial acetic acid and HCI for 5-10 min. at room temperature...
The Reaction of Thioacids with α-Haloketones in Water: an Environmentally Green Synthesis of Thioester DerivativesThioacidα-haloketonethioesterwatergreen chemistryThe reaction between a thioacid and an α-haloketone in water affords thioester derivatives in high yields. The reaction proceeded ...
1-disubstituted alkenes to the rearranged ketones. Thereaction, applicable to both the linear terminal alkenes and the methylenecycloalkanes, is compatible with a wide range of functional groups includingalkyl halides, aryl halides, alkyl tosylate, hydroxyl, carboxylic acid, ester,lactone, amide, and ...
For electron-deficient substituted boronic acids, such as the halobenzene boronic acids, only trace amounts of products could be obtained, which probably is due to their low nucleophilicity that cannot capture the nitrilium intermediates. Aliphatic boronic acids, such as phenethylboronic acid and ...
The Wittig reaction of perfluoro acid derivatives: access to fluorinated enol ethers, enamines, and ketonesalkylation, arylation, dealkylation, dearylation, C-acylation, olefinationketones (benzene compounds)ketone derivatives (benzene compounds)ChemInform is a weekly Abstracting Service, delivering concise ...
ChemInform Abstract: Synthesis of Allyl Ketone via Lewis Acid Promoted Barbier‐Type Reaction. Shih-Yuan Lee A,Lin L S.Synthesis of allyl ketone via Lewis acid promoted Barbier-type reaction. Tetrahedron Letters . 2000 AS Lee,L Lin - 《Cheminform》 被引量: 0发表: 2001年 Nonradical Zinc-...
The meaning of KNOEVENAGEL REACTION is an aldol-type condensation catalyzed by amines that takes place between an aldehyde or ketone and a compound containing an active methylene group (as in esters of acetoacetic acid, malonic acid, or cyanoacetic acid)
Scope for the Ketone Reagent (selectedexamples) One-step Synthesis of α-amino Amide andα-amino Ketone Pharmaceuticals and Selected Analogues LewisAcidActivationof4-carboxamideDHPstoFacilitateVisible-lightExcitationandNorrishType-IFragmentationtoaCarbamoylRadical ...
A convenient synthesis of highly functionalized, α,α-disubstituted amino acid amide derivatives has been accomplished by using cyclic and acyclic ketones as the carbonyl inputs in the Ugi multicomponent reaction. An application of this extension of the Ugi reaction to the synthesis of α,α-diviny...