60131-32-0Relevant articles and documents
Chemoenzymatic synthesis of (2S)-2-arylpropanols through a dynamic kinetic resolution of 2-arylpropanals with alcohol dehydrogenases
Galletti, Paola,Emer, Enrico,Gucciardo, Gabriele,Quintavalla, Arianna,Pori, Matteo,Giacomini, Daria
supporting information; experimental part, p. 4117 - 4123 (2010/10/03)
We applied Horse Liver Alcohol Dehydrogenase (HLADH) to the enantioselective synthesis of six (2S)-2-arylpropanols, useful intermediates in the synthesis of Profens. The influence of substrate structure and reaction conditions on yields and enantioselectivity were investigated. The high yields and high enantioselectivity towards the (S)-enantiomer obtained in the bioreduction of 2-arylpropionic aldehydes, clearly indicate the achievement of a DKR process through a combination of an enzyme-catalyzed kinetic reduction with a chemical base-catalyzed racemization of the unreacted aldehydes. The racemization step is represented by the keto-enol equilibrium of the aldehyde and can be controlled by modulating pH and reaction conditions.
Synthesis of aldehydes from carboxylic acids via N-methoxyimidoyl bromides: Deoximation of O-methyloximes
Sakamoto,Kikugawa
, p. 563 - 564 (2007/10/02)
Aldehydes are synthesized by hydrogenation and subsequent deoximation of substituted N-methoxyalkanimidoyl bromides, which are prepared in one pot by reaction of the corresponding carboxylic acids with methoxyamine and triphenylphosphine carbon tetrabromide. Regeneration of aldehydes and ketones from O-methyloximes under mild conditions is also described.
Pharmaceutically useful derivatives of thiazolidine-4-carboxylic acid
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, (2008/06/13)
Compounds of formula in which R, R1 and Y have the meanings shown in the description, their preparation by condensing an aldehyde or a ketone with cysteine or a derivative thereof and their use in the pharmaceutical field. The compounds of formula I possess antipyretic, anti--inflammatory, mucolytic and analgesic activity together with a low capacity to cause gastric injuries. The compounds of formula I, furthermore, are particularly useful in the treatment of ischemia and reperfusion syndromes.