120390-75-2Relevant academic research and scientific papers
Metal-Free Deoxygenation of Chiral Nitroalkanes: An Easy Entry to α-Substituted Enantiomerically Enriched Nitriles
Pirola, Margherita,Faverio, Chiara,Orlandi, Manuel,Benaglia, Maurizio
supporting information, p. 10247 - 10250 (2021/06/18)
A metal-free, mild and chemodivergent transformation involving nitroalkanes has been developed. Under optimized reaction conditions, in the presence of trichlorosilane and a tertiary amine, aliphatic nitroalkanes were selectively converted into amines or nitriles. Furthermore, when chiral β-substituted nitro compounds were reacted, the stereochemical integrity of the stereocenter was maintained and α-functionalized nitriles were obtained with no loss of enantiomeric excess. The methodology was successfully applied to the synthesis of chiral β-cyano esters, α-aryl alkylnitriles, and TBS-protected cyanohydrins, including direct precursors of four active pharmaceutical ingredients (ibuprofen, tembamide, aegeline and denopamine).
Chemoenzymatic asymmetric synthesis of fluoxetine, atomoxetine, nisoxetine, and duloxetine
Rej, Rohan Kalyan,Das, Tapas,Hazra, Suman,Nanda, Samik
, p. 913 - 918 (2013/09/23)
The asymmetric synthesis of two well-known anti-depressant drugs, fluoxetine and duloxetine has been accomplished in a chemoenzymatic manner. The main highlight of the synthesis is the enantioselective cyanohydrin formation by a plant (R)-HNL (hydroxynitrile lyase). The enantiopure cyanohydrins are then synthetically manipulated into the above two drug molecules and two of their structural analogues, atomoxetine and nisoxetine.
Enantioselective synthesis of protected cyanohydrins
Veum, Lars,Kuster, Marina,Telalovic, Selvedin,Hanefeld, Ulf,Maschmeyer, Thomas
, p. 1516 - 1522 (2007/10/03)
A straightforward process for the preparation of optically active protected cyanohydrins, important building blocks for the synthesis of drugs and agrochemicals, has been established. Lipase B from Candida Antarctica (CAL-B) catalysed the kinetic resoluti
Method of preparing optically active alcohols which consist substantially or entirely of one enantiomer
-
, (2008/06/13)
The invention relates to a method of preparing optically active alcohols which consist substantially (at least 75% e.e.) or entirely of one enantiomer of formula 4 STR1 wherein R and A are as defined therein. The method comprises, which maintaining enantiomeric excess, converting an optically active cyanohydrin of formula 1 STR2 into optically active protected cyanohydrin of formula 2 STR3 converting the protected cyanohydrin of formula 2 into an optically active compound of formula 3 STR4 removing the protecting group B.
BIO-ORGANIC SYNTHESIS OF OPTICALLY ACTIVE CYANOHYDRINS AND ACYLOINS
Brussee, J.,Roos, E. C.,Gen, A. Van Der
, p. 4485 - 4488 (2007/10/02)
Chiral acyloins of high optical purity have been obtained in good yields by enzyme catalyzed formation of optically active cyanohydrins, followed by hydroxyl protection and reaction with a Grignard reagent.
