4165-98-4Relevant academic research and scientific papers
Process for preparing Brivaracetam
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Page/Page column 8, (2020/12/14)
A process for the preparation of Brivaracetam, an anti-convulsion drug, is provided comprising Hofmann rearrangement of (S)-3-(2-(chloroamino)-2-oxoethyl) hexanoic acid, followed by cyclization resulting in (R)-4-propyl-pyrrolidin-2-one which on condensation with bromo butyric acid or ester followed by reaction with ammonia results in Brivaracetam.
Pheromones and analogs from Neozeleboria wasps and the orchids that seduce them: a versatile synthesis of 2,5-dialkylated 1,3-cyclohexanediones
Poldy, Jacqueline,Peakall, Rod,Barrow, Russell A.
, p. 2446 - 2449 (2008/09/20)
Chiloglottone, a wasp pheromone and attractant of sexually deceptive Chiloglottis orchids, and several structural analogs were synthesized. The synthetic approach is facile, high yielding and versatile, enabling rapid divergence to generate dialkylated analogs of chiloglottone. The key transformation was an organocadmium-mediated desymmetrization of glutaric anhydride derivatives. This library of synthetic 2,5-dialkylated 1,3-cyclohexanediones may assist in future identification of natural products in further species.
Tobacco smoke chemistry. 1. A chemical and mass spectrometric study of tobacco smoke alkyl 2-hydroxy-2-cyclopentenones.
Arnarp,Enzell,Petersson,Pettersson
, p. 839 - 854 (2007/10/02)
A series of alkyl 2-hydroxy-2-cyclopentenones, which comprise biologically and organoleptically active compounds, have been synthesized and subjected to high resolution mass spectrometric studies to clarify structurally significant fragmentation pathways. On the basis of these results, 26 alkyl 2-hydroxy-2-cyclopentenones were identified in the weakly acidic fraction of smoke condensate from American blend type cigarettes, eighteen of which had not been detected in tobacco smoke previously. The utility for identification purposes of the corresponding quinoxaline derivatives, obtained through condensation with o-phenylenediamine, is discussed.
