Synthesis of the benzo-β-carboline isoneocryptolepine: the missing indoloquinoline isomer in the alkaloid series cryptolepine, neocryptolepine and isocryptolepine
摘要:
7H-Indolo[2,3-c]quinoline has been synthesized in two steps via a new approach starting from commercially available 3-bromoquinoline and 2-bromoaniline. The new methodology consists of two consecutive palladium-catalyzed reactions: a selective Buchwald/Hartwig amination followed by an intramolecular Heck-type reaction. Alternatively, the same skeleton has also been prepared via the combination of a Suzuki arylation with an intramolecular nitrene insertion starting front 4-chloroquinotine and [2-[(2-2dimethylpropanoyl)amino]phenyl}boronic acid. Selective methylation of 7H-indolo[2.3-c]quinotine yielded 5-methyl-5H-indolo[2,3c]quinoline (Isoneocryptolepine) which is an interesting new lead compound in the search for new antiplasmodial drugs. (C) 2004 Elsevier Ltd. All rights reserved.
Synthesis of the benzo-β-carboline isoneocryptolepine: the missing indoloquinoline isomer in the alkaloid series cryptolepine, neocryptolepine and isocryptolepine
摘要:
7H-Indolo[2,3-c]quinoline has been synthesized in two steps via a new approach starting from commercially available 3-bromoquinoline and 2-bromoaniline. The new methodology consists of two consecutive palladium-catalyzed reactions: a selective Buchwald/Hartwig amination followed by an intramolecular Heck-type reaction. Alternatively, the same skeleton has also been prepared via the combination of a Suzuki arylation with an intramolecular nitrene insertion starting front 4-chloroquinotine and [2-[(2-2dimethylpropanoyl)amino]phenyl}boronic acid. Selective methylation of 7H-indolo[2.3-c]quinotine yielded 5-methyl-5H-indolo[2,3c]quinoline (Isoneocryptolepine) which is an interesting new lead compound in the search for new antiplasmodial drugs. (C) 2004 Elsevier Ltd. All rights reserved.
[EN] CYCLAMINEPHENYLAMINOQUINOLINES AS FUNGICIDES<br/>[FR] CYCLAMINEPHÉNYLAMINOQUINOLÉINES UTILES EN TANT QUE FONGICIDES
申请人:BAYER AG
公开号:WO2021209490A1
公开(公告)日:2021-10-21
The present disclosure relates to fungicidal active compounds, more specifically to cyclaminephenylaminoquinolines of formula (I), intermediates for their preparation and use thereof as fungicidal active compound, particularly in the form of fungicide compositions. The present disclosure also relates to methods for the control of phytopathogenic fungi of plants using these compounds or compositions comprising thereof.
[EN] HETEROARYLPHENYLAMINOQUINOLINES AND ANALOGUES<br/>[FR] HÉTÉROARYLPHÉNYLAMINOQUINOLÉINES ET ANALOGUES
申请人:BAYER AG
公开号:WO2018197692A1
公开(公告)日:2018-11-01
The present disclosure relates to fungicidal active compounds, more specifically to heteroarylphenylaminoquinolines and analogues thereof, processes and, intermediates for their preparation and use thereof as fungicidal active compound, particularly in the form of fungicide compositions. The present disclosure also relates to methods for the control of phytopathogenic fungi of plants using these compounds or compositions comprising thereof.
Synthesis of 7H-indolo[2,3-c]quinolines: study of the Pd-catalyzed intramolecular arylation of 3-(2-bromophenylamino)quinolines under microwave irradiation
作者:Steven Hostyn、Bert U.W. Maes、Gitte Van Baelen、Anna Gulevskaya、Caroline Meyers、Koen Smits
DOI:10.1016/j.tet.2005.12.062
日期:2006.5
methodology consists of two consecutive palladium-catalyzed reactions: a selective Buchwald–Hartwig amination followed by a regioselectiveintramolecularHeck-typereaction. The latter step has been investigated under microwave irradiation. Heating at 180 °C allows to seriously reduce the catalyst loading and get a full conversion to reaction product in 10 min. In addition, the former simplifies the
D-环取代的5-甲基-5 H-吲哚并[2,3- c ]喹啉(4)已从市售的3-溴喹啉(5)和2-溴苯胺(6)开始分三步合成。该方法包括两个连续的钯催化反应:选择性布赫瓦尔德-哈特维希胺化反应,然后是区域选择性分子内Heck型反应。已在微波辐射下研究了后一步。加热到180°C可以严重减少催化剂的负载,并在10分钟内完全转化为反应产物。另外,前者简化了纯化。
Trisubstitutedsilylphenoxyheterocycles and analogues
申请人:Bayer CropScience Aktiengesellschaft
公开号:US10683311B2
公开(公告)日:2020-06-16
The present disclosure relates to fungicidal active compounds, more specifically to trisubstitutedsilylphenoxyhetero-cycles and analogues thereof, processes and, intermediates for their preparation and use thereof as fungicidal active compound, particularly in the form of fungicide compositions. The present disclosure also relates to methods for the control of phytopathogenic fungi of plants using these compounds or compositions comprising thereof.