Visible-Light-Mediated Rose Bengal-Catalyzed α-Hydroxymethylation of Ketones with Methanol
A visible-light-mediated α-hydroxymethylation of ketones using methanol as the hydroxymethylating reagent has been developed. Using 1 mol% rose bengal as the photosensitizer and air as the green oxidant, the reactions proceeded smoothly at room temperature. Experimental studies indicate the reaction proceeded via a radical pathway. (Figure presented.).
Lewis acid catalysis in water with a hydrophilic substrate: Scandium-catalyzed hydroxymethylation with aqueous formaldehyde in water
(Chemical Equation Presented) Synthesis in deep water: For the title reaction, which proceeds with high selectivities, acid-base interactions between the Sc catalyst and HCHO are important. The reaction was used in the synthesis of an odorant to demonstra
Kokubo, Masaya,Ogawa, Chikako,Kobayashi, Shu
supporting information; experimental part
p. 6909 - 6911
(2009/04/06)
Scandium(Iii) fluoride as a novel catalyst for hydroxymethylation of dimethylsilyl enolates in aqueous media
Hydroxymethylation of dimethylsilyl (DMS) enolates using aqueous formaldehyde solution is catalyzed by scandium(III) fluoride (ScF3) in aqueous media to give the corresponding β-hy-droxy ketones in good to excellent yields. Whilst the DMS enola
Kokubo, Masaya,Kobayashi, Shu
experimental part
p. 1562 - 1564
(2009/04/07)
Process for producing 1-hydroxy ketones
The invention relates to a novel process for producing compounds of the formula I STR1 in which R1 is for example phenyl, and R2 and R3 are for example cyclohexyl. With application of the phase-transfer catalysis method, a
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(2008/06/13)
A Facile and General Synthesis of 2,5,6-Trisubstituted-6,7-dihydro-1,3,4-oxadiazepines
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Cignarella, Giorgio,Barlocco, Daniela,Curzu, Maria Michela,Pinna, Gerard Aime
p. 342 - 345
(2007/10/02)
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