Title:
2-ハロゲン化安息香酸類の製造方法
Document Type and Number:
Japanese Patent JP4853752
Kind Code:
B2
Abstract:
The present invention provides a process for producing 2-halobenzoic acids of the general formula (I), characterized by reacting a benzoic acid of formula (II) with a halogenating agent in the presence of Pd catalyst: (wherein A is -OH, -OM (M is alkali metal), -N(R<6>)R<7> (R<6> and R<7> are each H, C1-C6 alkyl, optionally substituted phenyl, or the like); R is H, C1-C6 alkyl, C1-C6 alkylcarbonyl, carboxyl, C1-C12 alkoxycarbonyl, optionally substituted phenylcarbonyl, or the like; n is 0 to 4; X is Cl, Br or I, or alternatively (R)n may be present on benzene-constituting carbon atoms adjacent to each other and form a C3-C4 alkylene- or C3-C4 alkenylene-fused ring).
Inventors:
Hironori Kodama
Ken Kappei
Nishida Tatsuki
Tomokazu Hino
Kenji Tsubata
Ken Kappei
Nishida Tatsuki
Tomokazu Hino
Kenji Tsubata
Application Number:
JP2001134049A
Publication Date:
January 11, 2012
Filing Date:
May 01, 2001
Export Citation:
Assignee:
Nippon Pesticides Co., Ltd.
International Classes:
B01J27/13; C07C51/363; C07D239/60; C07B39/00; C07B61/00; C07C63/70; C07C67/307; C07C69/80; C07C231/12; C07C233/66; C07C237/22; C07C249/12; C07C251/38; C07C303/30; C07C309/66; C07C313/04; C07C315/04; C07C319/20; C07C323/42; C07C323/44; C07D213/64; C07D213/643; C07D213/75; C07D239/34; B01J31/28; C07C233/65; C07C317/28; C07C317/40; C07C317/44; C07C323/41; C07C323/62
Domestic Patent References:
| JP5051348A |
Foreign References:
| GB1163236B |
Attorney, Agent or Firm:
Calyx
Toshio Nakamura
Miyazaki Yoshio
Toshio Nakamura
Miyazaki Yoshio