18465-71-9Relevant academic research and scientific papers
Potassium 2,3,4-trihydroxy-2-methylbutanoate, a leaf-closing substance of Leucaena leucocephalam
Ueda, Minoru,Sohtome, Yoshihiro,Ueda, Katsuhiro,Yamamura, Shosuke
, p. 3109 - 3111 (2001)
Potassium 2,3,4-trihydroxy-2-methylbutanoate (1) was identified as a leaf-closing substance of a nyctinastic plant, Leucaena leucocephalam. Compound 1 was quite effective for the leaf-closing of L. leucocephalam at 1×10-6 M.
PROCESS FOR PREPARING SACCHARINIC ACIDS AND LACTONES
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Page/Page column 34; 35; 3/6; 4/6, (2008/06/13)
An improved process for preparing a saccharinic acid or lactone is disclosed that utilizes the well-known Amadori rearrangement reaction. The synthesis utilizes protected or unprotected sugars or their analogues as starting materials, and reagents not pre
Green aldose isomerisation: 2-C-methyl-1,4-lactones from the reaction of Amadori ketoses with calcium hydroxide
Hotchkiss, David J.,Soengas, Raquel,Booth, Kathrine V.,Weymouth-Wilson, Alexander C.,Eastwick-Field, Vanessa,Fleet, George W.J.
, p. 517 - 520 (2007/10/03)
Saccharinic acids, branched 2-C-methyl-aldonic acids, may be accessed via a green procedure from aldoses by sequential conversion to an Amadori ketose and treatment with calcium hydroxide; d-galactose and d-glucose are converted to 2-C-methyl-d-lyxono-1,4
An efficient Amano PS-catalyzed chemo-, regio- and enantioselective hydrolysis of (±)-2,3-di-O-acetyl-2-C-methyl-d-erythrono-1,4-lactone: a facile preparation of bioactive natural products (-)-saccharinic acid lactone and potassium (2R,3R)-2,3,4-trihydrox
Gogoi, Sanjib,Argade, Narshinha P.
, p. 927 - 932 (2007/10/03)
Saccharinic acid lactone (-)-1a is a suitable building block for the synthesis of many bioactive natural products. Amano PS-induced chemo-, regio- and enantioselective hydrolysis of diacetyl lactone (±)-3 has been carried out to obtain (-)-1a in 46% yield
Concise synthesis of enantiopure erythro-saccharinic acid lactone and potassium (2R,3R)-2,3,4-trihydroxy-2-methylbutanoate
Koumbis, Alexandros E.,Kaitaidis, Apostolos D.,Kotoulas, Stefanos S.
, p. 8479 - 8481 (2007/10/03)
A short and efficient approach was applied to the total synthesis of erythro-saccharinic acid lactone and the leaf-closing substance potassium (2R,3R)-2,3,4-trihydroxy-2-methylbutanoate from a 2-C-hydroxymethyl-d-erythrose derivative, using a combined str
ERYTHRULOSE AS A CHIRAL PRECURSOR IN ORGANIC SYNTHESIS. TOTAL SYNTHESES OF FRONTALIN AND TWO FURTHER CHIRAL COMPOUNDS IN OPTICALLY ACTIVE FORM
Marco, J. Alberto,Carda, Miguel,Gonzalez, Florenci,Rodriguez, Santiago,Murga, Juan,Falomir, Eva
, p. 103 - 112 (2007/10/02)
From L-erythrulose derivatives as the starting materials we have performed total syntheses of some natural and non-natural compounds in optically active form.The selected target molecules were the insect pheromon frontalin, a naturally occuring lactone of
Enantioselective synthesis of both diastereomers including the α-alkoxy-β-hydroxy-β-methyl(phenyl) units, by chiral tin(II) Lewis acid-mediated asymmetric aldol reactions
Kobayashi,Horibe,Saito
, p. 9629 - 9642 (2007/10/02)
Diastereo- and enantioselective synthesis of both diasteromers, including the α-alkoxy-β-hydroxy-β-methyl(phenyl) units, was performed by using chiral tin(II) Lewis acid-mediated asymmetric aldol reactions of α-alkoxy silyl enol ethers with α-ketoesters. (S)-1-Propyl-2-[(1,2,3,4-tetrahydroisoquinolinyl))methyl]pyrrolidine (13), a new type of chiral diamine, was found to be effective as a chiral source in these reactions and also in the reactions of 2-(t-butyldimethylsiloxy)-1-ethylthio-1-(trimethylsiloxy)ethene (9) with aldehydes for the synthesis of optically active syn-α,β-dihydroxy thioester derivatives. (-)-2-C-Methyl-D-erythrono-1,4-lactone and (+)-2-C-methyl-L-threono-1,4-lactone were synthesized by using these reactions.
