52329-71-2Relevant academic research and scientific papers
A highly efficient access to spiroketals, mono-unsaturated spiroketals, and furans: Hg(II)-catalyzed cyclization of alkyne diols and triols
Ravindar, Kontham,Sridhar Reddy, Maddi,Deslongchamps, Pierre
, p. 3178 - 3181 (2011/08/06)
Hg(II) salts are identified as highly efficient catalysts for the versatile construction of spiroketals from alkyne diols in aqueous conditions. Monounsaturated spiroketals and furans were accessed with equal ease when propargylic triols (or propargylic d
BENZISOXAZOLE COMPOUND
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Page/Page column 91, (2009/02/10)
Disclosed is a compound represented by the general formula (I) or a salt thereof: wherein any one of R1, R2 and R3 represents a group represented by the formula: -(CH2)m-NR11R12 (wherein m is 1 or 2; and R11 and R12 independently represent a hydrogen atom or a C1-6 alkyl group or may, together with a nitrogen atom to which R11 and R12 are bound, form a 4- or 5-membered cyclic group); the remaining two or R1, R2 and R3 independently represent a group represented by the formula: -(O)n-R21 (wherein n is 0 or 1; and R21 represents a hydrogen atom, a C1-6 alkyl group, a C2-6 alkenyl group, a C2-6 alkynyl group, or the like); and R4 represents a C1-6 alkyl group which may have a substituent or the like.
Reduction of α-Trialkylsiloxy Nitriles with Diisobutylaluminium Hydride (DIBAH): A Facile Preparation of α-Trialkylsiloxy Aldehydes and their Derivatives
Hayashi, Masahiko,Yoshiga, Tomoko,Nakatani, Kanako,Ono, Kazuyuki,Oguni, Nobuki
, p. 2821 - 2830 (2007/10/02)
The stepwise synthesis of α-trimethylsiloxy aldehydes and α-hydroxy aldehydes could be achieved via the reduction of α-trimethylsiloxy nitriles with diisobutylaluminium hydride (DIBAH) starting from a variety of ketones.The facile synthesis of optically active α-tert-butyldimethylsiloxy aldehydes was attained by combination of asymmetric silylcyanation of aldehydes and DIBAH reduction of optically active α-siloxy nitriles.Furthermore, in the reduction of some α-tert-butyldimethylsiloxy-β,γ-unsaturated nitriles, migration of the double bond took place to form more stable α-siloxy-α,β-unsaturated aldehydes under some reaction conditions.
The Use of Methoxy(phenyldimethylsilyl)methyl-lithium as a Formyl Anion Equivalent
Ager, David J.,Gano, James E.,Parekh, Shyamal I.
, p. 1256 - 1258 (2007/10/02)
Methoxy(phenyldimethylsilyl)methyl-lithium provides a new formyl anion equivalent which affords α-hydroxyaldehydes via an oxidative desilylation procedure.
Benzotriazol-1-ylmethyl isocyanide, a new synthon for CH-N=C transfer. Syntheses of α-hydroxyaldehydes, 4-ethoxy-2-oxazolines and oxazoles
Katritzky,Chen,Yannakopoulou,Lue
, p. 6657 - 6660 (2007/10/02)
Readily prepared benzotriazol-1-ylmethyl isocyanide (BetMIC) reacts under mild conditions with ketones and aldehydes, to afford oxazolines (convertible into α-hydroxyaldehydes) and oxazoles, respectively.
CARBON-CARBON BOND FORMING REACTION OF BIS(CHLOROMETHYL)SULFONE WITH CARBONYL COMPOUNDS: GENERAL ROUTE TO AROMATIC 2-CHLOROVINYL COMPOUNDS AND α-HYDROXYALDEHYDES
Nagashima, Enkou,Suzuki, Kunio,Ishikawa, Motoaki,Sekiya, Minoru
, p. 1873 - 1879 (2007/10/02)
Bis(chloromethyl)sulfone (1) has been proved to be a useful reagent for the synthesis of aromatic 2-chlorovinyl compounds (4) from aromatic aldehydes and of α-hydroxyaldehydes (5) from aliphatic carbonyl compounds with one carbon prolongation.The sec-butyllithium-aided reaction of 1 with aromatic aldehydes gives 1,3-oxathiolane-3,3-dioxides (2) which are converted to 4 in good yields by thermolysis.On the other hand, the sodium hydride-aided reaction of 1 with aliphatic carbonyl compounds is favorable to the formation of chloromethylsulfonyloxiranes (3).Titanium tetrachloride has been found to be an efficient reagent for hydrolysis of 3 to 5.
