Asymmetric Hydrogenation of Isoxazolium Triflates with a Chiral Iridium Catalyst
作者:Ryuhei Ikeda、Ryoichi Kuwano
DOI:10.1002/chem.201600732
日期:2016.6.13
enantiomeric ratio (e.r.). Chiral cis‐isoxazolidines were obtained in up to 89:11 e.r., with no formation of their trans isomers, when the substrates had a primary alkyl substituent at the 5‐position. The mechanistic studies indicate that the hydridoiridium(III) species prefers to deliver its hydride to the C5 atom of the isoxazole ring. The hydride attack leads to the formation of the chiral isoxazolidine via
SUBSTITUTED N-HETEROCYCLYL- AND N-HETEROARYL-TETRAHYDROPYRIMIDINONES AND THE SALTS THEREOF, AND THE USE OF SAME AS HERBICIDAL ACTIVE SUBSTANCES
申请人:Bayer Aktiengesellschaft
公开号:US20200390100A1
公开(公告)日:2020-12-17
The present invention relates to substituted N-heterocyclyl- and N-heteroaryltetrahydropyrimidinones of the general formula (I) or salts thereof,
where the radicals in the general formula (I) correspond to the definitions given in the description, and to the use thereof as herbicides, in particular for controlling broad-leaved weeds and/or weed grasses in crops of useful plants and/or as plant growth regulators for influencing the growth of crops of useful plants.
4-CHROMENONYL-1,4-DIHYDROPYRIDINE UND IHRE VERWENDUNG
申请人:Bayer HealthCare AG
公开号:EP1910329A1
公开(公告)日:2008-04-16
US7989633B2
申请人:——
公开号:US7989633B2
公开(公告)日:2011-08-02
[DE] 4-CHROMENONYL-1,4-DIHYDROPYRIDINE UND IHRE VERWENDUNG<br/>[EN] 4-CHROMENONYL-1,4-DIHYDROPYRIDINES AND THEIR USE<br/>[FR] 4-CHROMENONYL-1,4-DIHYDROPYRIDINE ET SON UTILISATION
申请人:BAYER HEALTHCARE AG
公开号:WO2007025604A1
公开(公告)日:2007-03-08
[EN] The present application relates to new 4-chromenonyl-l,4-dihydropyridines of the formula (I), to processes for preparing them, to their use for the treatment and/or prophylaxis of diseases, and to their use for the production of pharmaceuticals for the treatment and/or prophylaxis of diseases, especially cardiovascular disorders. ( I ) [FR] La présente invention concerne de nouvelles 4-chromenonyl-l,4-dihydropyridines de la formule (I), leurs procédés de production, leur utilisation pour traiter et/ou prévenir des maladies et leur utilisation pour produire des médicaments destinés au traitement et/ou à la prévention de maladies, notamment de maladies cardiovasculaires. ( I ) [DE] Die vorliegende Anmeldung betrifft neue 4-Chromenonyl-l,4-dihydropyridine'der Formel (I) Verfahren zu ihrer Herstellung, ihre Verwendung zur Behandlung und/oder Prophylaxe von Krankheiten sowie ihre Verwendung zur Herstellung von Arzneimitteln zur Behandlung und/oder Prophylaxe von Krankheiten, insbesondere von kardiovaskulären Erkrankungen. ( I )