Synergistic Relay Reactions To Achieve Redox‐Neutral α‐Alkylations of Olefinic Alcohols with Ruthenium(II) Catalysis
作者:Chen‐Chen Li、Jian Kan、Zihang Qiu、Jianbin Li、Leiyang Lv、Chao‐Jun Li
DOI:10.1002/anie.201915218
日期:2020.3.9
the first Grignard-type nucleophilic addition using olefinicalcohols as latent carbonyl groups, providing a higher yield of the corresponding secondary alcohol than the classical hydrazone addition to aldehydes does. A broad scope of unsaturated alcohols and hydrazones, including some complex structures, can be successfully employed in this reaction, which shows the versatility of this approach and
[EN] PYRAZINONE DERIVATIVES AS INSULIN SECRETION STIMULATORS, METHODS FOR OBTAINING THEM AND USE THEREOF FOR THE TREATMENT OF DIABETES<br/>[FR] DÉRIVÉS DE PYRAZINONE COMME STIMULATEURS DE LA SÉCRÉTION D'INSULINE, LEURS PROCÉDÉS D'OBTENTION ET LEUR UTILISATION POUR LE TRAITEMENT DU DIABÈTE
申请人:MERCK PATENT GMBH
公开号:WO2009109259A1
公开(公告)日:2009-09-11
The present invention relates to pyrazinone derivatives of formula (I), wherein n, R1, R2, R3 and R4 are as defined in claim 1, as insulin secretion stimulators. The invention also relates to the preparation and use of these pyrazinone derivatives for the prophylaxis and/or treatment of diabetes and pathologies associated.