54031-97-9Relevant academic research and scientific papers
Asymmetric oxidation of 3-alkyl-1,2-cyclopentanediones. Part 2: Oxidative ring cleavage of 3-alkyl-1,2-cyclopentanediones: Synthesis of 2-alkyl-γ-lactone acids
Paju, Anne,Kanger, Tonis,Pehk, Tonis,Lindmaa, Rasmus,Mueuerisepp, Aleksander-Mati,Lopp, Margus
, p. 1565 - 1573 (2007/10/03)
Ti(OiPr)4/diethyl tartrate/tBuOOH system oxidizes 3-alkyl-1,2-cyclopentanediones resulting in hydroxylated ring cleavage products 2-alkyl-γ-lactone acids, in high enantioselectivity (~95% ee) and satisfactory isolated yields (up to 55%).
Assessment of the Active-Site Requirements of 5-Aminolaevulinic Acid Dehydratase: Evaluation of Substrate and Product Analogues as Competitive Inhibitors
Lueoend, Rainer M.,Walker, Josef,Neier, Reinhard W.
, p. 5005 - 5013 (2007/10/02)
The enzyme 5-aminolaevulinic acid dehydratase (ALAD) is resonsible for the synthesis of porphobilinogen (PBG) from two molecules of 5-aminolaevulinic acid (ALA).Porphobilinogen is an important committed intermediate in the biosynthesis of tetrapyrroles.Th
CONDENSATION OF α,γ-DIKETO (OR KETOSUCCINIC) ESTERS WITH GLYOXYLIC ACID
Bonadies, Francesco,Scarpati, Maria Luisa
, p. 421 - 426 (2007/10/02)
2-Hydroxy-4-keto acids may be conveniently prepared by elimination of the oxalyl moiety, catalyzed by Zn(2+), from 4-carboxy-2-hydroxybutenolides.These are obtained in good yield by the addition of α,γ-diketo esters to sodium glyoxylate.If the α,γ-diketo esters, or ketosuccinic esters, carry an alkyl substituent in the β position their addition to sodium glyoxylate proceeds with the simultaneous splitting of the oxalyl moiety.The corresponding 2-enoic(4-keto or 3-carboxy) acids are obtained in good yields.
