申请人:HELMHOLTZ-ZENTRUM FÜR INFEKTIONSFORSCHUNG GMBH
公开号:US20170022165A1
公开(公告)日:2017-01-26
The present invention relates to compounds according to general formula (I); to pharmaceutical compositions comprising one or more of the compound(s); and to the use of the compound(s) as anti-infectives.
Copper-FreeSonogashira Coupling of Acid Chlorides with Terminal Alkynes in the Presence of a Reusable Palladium Catalyst: An Improved Synthesis of 3-Iodochromenones (=3-Iodo-4H-1-benzopyran-4-ones)
作者:Pravin R. Likhar、M. S. Subhas、Moumita Roy、Sarabindu Roy、M. Lakshmi Kantam
DOI:10.1002/hlca.200890032
日期:2008.2
Pd/C is used as an efficient catalyst for the copper-free Sonogashira coupling of acidchlorides and terminalalkynes to afford ynones in high yields (Tables 1 and 3). Cyclization of (2-methoxyaryl)-substituted ynones induced by I2/ammonium cerium(IV) nitrate (CAN) at room temperature gave 3-iodochromenones (=3-iodo-4H-1-benzopyran-4-ones) in excellent yield (Table 4).
Pd / C用作酰基氯与末端炔烃的无铜Sonogashira偶联的有效催化剂,可高产率提供炔酮(表1和3)。在室温下,由I 2 /硝酸铈(IV)铵(CAN)诱导的(2-甲氧基芳基)取代的炔酮的环化反应得到极好的3-碘代色酮(= 3-碘代-4 H -1-苯并吡喃-4-酮)产量(表4)。