6252-00-2Relevant academic research and scientific papers
Method for visible light driven green synthesis of benzoin bis-ether
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Paragraph 0215-0218, (2019/02/10)
The invention relates to a method for visible light driven green synthesis of benzoin bis-ether. The method comprises the steps that an alkyne compound, an alcohol compound and 10-methyl-9-sym-trimethylbenzene based acridine perchlorate perform driving reaction in the atmosphere at room temperature with the visible light with the wavelength of 450-460 nm, a reaction solution is obtained after 3 hours and is spin-dried to obtain concentrate, and the concentrate is subjected to column chromatography on silica gel to obtain the benzoin bis-ether. The method is high in yield, moderate in conditionand small in environmental pollution.
Visible-light-enabled aerobic synthesis of benzoin bis-ethers from alkynes and alcohols
Lei, Wen-Long,Yang, Biao,Zhang, Qing-Bao,Yuan, Pan-Feng,Wu, Li-Zhu,Liu, Qiang
supporting information, p. 5479 - 5483 (2019/01/03)
A new, facile, atom-economical and good regioselective method for the synthesis of benzoin bis-ethers has been developed via directly using readily available alkynes and alcohols as raw materials under visible light irradiation. The protocol utilizes commercial Mes-Acr+ClO4- as an organophotoredox catalyst and air (O2) as a green sustainable reagent. A range of benzoin bis-ether derivatives were easily and efficiently obtained in a one-pot procedure at room temperature, and water is the by-product.
Reactions of α-Hydroxy Carbonyl Compounds with Azodicarboxylates and Triphenylphosphine: Synthesis of α-N-Hydroxy Amino Acid Derivatives
Kolasa, Teodozyj,Miller, Marvin J.
, p. 4978 - 4984 (2007/10/02)
Reaction of aliphatic α-hydroxy esters with azodicarboxylates and triphenylphosphine in the presence of either CbzNHOCH2Ph or trOCNHOCH2Ph provides a direct route to protected α-N-hydroxy amino acids.Similar reactions with aromatic α-hydroxy carbonyl compounds and derivatives result in predominate oxidation to the corresponding α-oxo carbonyl derivatives.
2,4,4,6-Tetrabromocyclohexa-2,4-dienone: a New Electron Acceptor in the Photosensitized Oxidation of Unsaturated Substrates
Lopez, Luigi,Calo, Vincenzo
, p. 1266 - 1268 (2007/10/02)
2,4,4,6-Tetrabromocyclohexa-2,4-dienone, usually used as a mild and selective brominating agent, acts as an electron acceptor in the sensitized photo-oxygenation of several unsaturated substrates; a mechanism is proposed.
OXIDATION OF ALCOHOLS TO CARBONYL COMPOUNDS WITH CHROMIUM(V) REAGENTS
Chakraborty, T. K.,Chandrasekaran, S.
, p. 1583 - 1586 (2007/10/02)
Two pentavalent chromium complexes have been used effectively for the oxidation of alcohols to carbonyl compounds.
