Title:
ハロゲン化ピリジン誘導体の製造方法
Document Type and Number:
Japanese Patent JP7034953
Kind Code:
B2
Abstract:
The present invention relates to a method for preparing halogenated pyridine derivatives of formula (II) starting from compounds of formula (I) via intermediate stages of formula (IIIa) or (IIIb), in which the radicals Q and W independently of one another represent halogen, R2 represents halogen or -O-pivaloyl, and Y represents halogen, CO2R1 or NO2, in which R1 represents (C1-C6) alkyl or (C1-C6) haloalkyl.
Inventors:
Muslin, mark
Fisher, Ludiger
Hager, Dominique
Hoffmeister, Laura
Kaush-Bizies, Nina
Wilke, David
Willow, matthew
Fisher, Ludiger
Hager, Dominique
Hoffmeister, Laura
Kaush-Bizies, Nina
Wilke, David
Willow, matthew
Application Number:
JP2018567735A
Publication Date:
March 14, 2022
Filing Date:
June 28, 2017
Export Citation:
Assignee:
BAYER CROPSCIENCE AG
International Classes:
C07D213/61; C07D213/803; C07F3/06
Domestic Patent References:
| JP2013543842A |
Other References:
Snegaroff, Katia; Nguyen, Tan Tai; Marquise, Nada; Halauko, Yury S.; Harford, Philip J.; Roisnel, Thierry; Matulis, Vadim E.; Ivashkevich, Oleg A.; Chevallier, Floris; Wheatley, Andrew E. H.; Gros, Philippe C.; Mongin, Florence,Deprotonative Metalation of Chloro- and Bromopyridines Using Amido-Based Bimetallic Species and Regioselectivity-Computed CH Acidity Relationships,Chemistry - A European Journal ,2011年,17(47),,13284-13297,
Dhau, Jaspreet S.; Singh, Amritpal; Kasetti, Yoganjaneyulu; Bhatia, Sonam; Bharatam, Parsad V.; Brandao, Paula; Felix, Vitor; Singh, Kamal N.,A study on the BF3 directed lithiation of 3-chloro- and 3-bromopyridine,Tetrahedron,2013年,69(48),,10284-10291
Database REGISTRY,2015年09月,RN 1807166-48-8, 1807041-31-1, 1805666-95-8, 1805576-89-9, 1805574-82-6, 1803811-18-8, 1803767-11-4, 1214350-80-7, 1211529-01-9,Retrieved from STN international [online] ;retrieved on 2 July 2021
Dhau, Jaspreet S.; Singh, Amritpal; Kasetti, Yoganjaneyulu; Bhatia, Sonam; Bharatam, Parsad V.; Brandao, Paula; Felix, Vitor; Singh, Kamal N.,A study on the BF3 directed lithiation of 3-chloro- and 3-bromopyridine,Tetrahedron,2013年,69(48),,10284-10291
Database REGISTRY,2015年09月,RN 1807166-48-8, 1807041-31-1, 1805666-95-8, 1805576-89-9, 1805574-82-6, 1803811-18-8, 1803767-11-4, 1214350-80-7, 1211529-01-9,Retrieved from STN international [online] ;retrieved on 2 July 2021
Attorney, Agent or Firm:
Makoto Ono
Kanayama Sage
Yoshiyuki Tsubokura
Kazuki Shigemori
Kenji Ando
Hidehiko Ichikawa
Takahiro Aoki
Yoshie Sakurada
Yosuke Kawasaki
Takuya Gomibuchi
Toshikazu Imato
Youichi Iino
Yusuke Ichikawa
Masahiro Moriyama
Yoshikazu Iwase
Yasufumi Shiroyama
Kanayama Sage
Yoshiyuki Tsubokura
Kazuki Shigemori
Kenji Ando
Hidehiko Ichikawa
Takahiro Aoki
Yoshie Sakurada
Yosuke Kawasaki
Takuya Gomibuchi
Toshikazu Imato
Youichi Iino
Yusuke Ichikawa
Masahiro Moriyama
Yoshikazu Iwase
Yasufumi Shiroyama
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