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YU29800A - Postupak za dobijanje hlorbenzoksazola - Google Patents

Postupak za dobijanje hlorbenzoksazola

Info

Publication number
YU29800A
YU29800A YU29800A YU29800A YU29800A YU 29800 A YU29800 A YU 29800A YU 29800 A YU29800 A YU 29800A YU 29800 A YU29800 A YU 29800A YU 29800 A YU29800 A YU 29800A
Authority
YU
Yugoslavia
Prior art keywords
formula
chiorobenzoxazoles
preparing
reacts
chlorine
Prior art date
Application number
YU29800A
Other languages
English (en)
Inventor
Hans Joachim Ressel
Mohammed Aslam
Jean Pierre Demoute
Gunter Schlegel
Wolgang Welter
Original Assignee
Aventis Cropscience Gmbh.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aventis Cropscience Gmbh. filed Critical Aventis Cropscience Gmbh.
Publication of YU29800A publication Critical patent/YU29800A/sh
Publication of RS49787B publication Critical patent/RS49787B/sr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
    • C07D263/52—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems
    • C07D263/54—Benzoxazoles; Hydrogenated benzoxazoles
    • C07D263/58—Benzoxazoles; Hydrogenated benzoxazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Pronalazak se odnosi na postupak za dobijanje hlorbenzoksazola formule (I) gde su R1, R2 i R4 definisani kao u zahtevu jedan i u slučaju (a) R3 predstavlja vodonik, halogen, CN, NO2 C1-C5-alkil, C1-C5-alkoksi, aril ili ariloksi, pri čemu je svaki od poslednja četiri navedena ostatka supstituisan ili nesupstituisan ili u slučaju (b)R3 je hlor, karakterističan po tome što se benzoksazoli formule (II) kod kojih R1, R2 i R4 imaju isto značenje kao u formuli (I) i R3 u slučaju (a) kao u formuli (I), odnosno R3 je u slučaju (b) vodonik dovode u reakciju u prisustvu nekog kiselog katalizatora sa sredstvom za hlorovanje i prevode u produkt monohlorovanja (I) odnosno u slučaju (b) sa viškom sredstva za hlorovanje u produkt dihlorovanja (I), gde R3 predstavlja hlor.[The invention relates to a method for producing chlorobenzoxazolene of formula (I), wherein R1, R2 and R4 are defined as in Claim 1 and in (a) R3 = H, CN, NO2, C1-C5-alkyl, C1-C5 alkoxy, aryl or aryloxy, whereby each of the four radicals mentioned is unsubstituted or substituted, or in (b) R3 = chlorine. The inventive method is characterized in that benzoxazole of formula (II) wherein R1, R2 and R4 have the same meaning as in formula (I) and R3 in (a) is defined as in formula (I) or R3 in (b) is hydrogen, reacts in the presence of an acid catalyst with a chlorinating agent to form a monochlorination product (I) or in (b) reacts with an excess of a chlorinating agent to form a dichlorination product (I), wherein R3 = chlorine.
YUP-298/00A 1997-12-16 1998-12-08 Postupak za dobijanje hlorbenzoksazola RS49787B (sr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19755904A DE19755904C2 (de) 1997-12-16 1997-12-16 Verfahren zur Herstellung von Chlorbenzoxazolen

Publications (2)

Publication Number Publication Date
YU29800A true YU29800A (sh) 2002-11-15
RS49787B RS49787B (sr) 2008-06-05

Family

ID=7852111

Country Status (29)

Country Link
US (1) US6274739B1 (sh)
EP (1) EP1071674B1 (sh)
JP (1) JP4996009B2 (sh)
KR (1) KR100647960B1 (sh)
CN (1) CN1197851C (sh)
AR (1) AR016434A1 (sh)
AT (1) ATE273291T1 (sh)
AU (1) AU761589B2 (sh)
BR (1) BR9813698A (sh)
CA (1) CA2311578C (sh)
CO (1) CO4980865A1 (sh)
CZ (1) CZ297899B6 (sh)
DE (2) DE19755904C2 (sh)
ES (1) ES2227905T3 (sh)
HU (1) HUP0100505A3 (sh)
ID (1) ID26842A (sh)
IL (1) IL136698A (sh)
MY (1) MY122273A (sh)
NO (1) NO316617B1 (sh)
PL (1) PL195801B1 (sh)
PT (1) PT1071674E (sh)
RS (1) RS49787B (sh)
RU (1) RU2245880C2 (sh)
SK (1) SK285239B6 (sh)
TR (1) TR200001734T2 (sh)
TW (1) TW486473B (sh)
UA (1) UA57123C2 (sh)
WO (1) WO1999031076A1 (sh)
ZA (1) ZA9811499B (sh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006022194A1 (en) * 2004-08-23 2006-03-02 Semiconductor Energy Laboratory Co., Ltd. Electron injecting composition, and light emitting element and light emitting device using the electron injecting composition
CN109456282A (zh) * 2019-01-11 2019-03-12 江苏快达农化股份有限公司 一种2-氯苯并噻唑的合成方法
CN109761928B (zh) * 2019-02-15 2023-06-23 安徽丰乐农化有限责任公司 一种2,6-二氯苯并恶唑的制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2059725A1 (de) * 1970-12-04 1972-06-08 Bayer Ag 2,4,5,6,7-Pentachlor-benzoxazol und Verfahren zu seiner Herstellung
DE2640730C2 (de) * 1976-09-10 1983-08-25 Hoechst Ag, 6230 Frankfurt Benzoxazolyloxy- und Benzothiazolyloxy-phenoxy-Verbindungen und diese enthaltende herbizide Mittel
DE3234530A1 (de) * 1982-09-17 1984-03-22 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von 2-chlorbenzthiazol
DE3334417A1 (de) * 1983-09-23 1985-04-04 Cassella Ag, 6000 Frankfurt Verfahren zur herstellung von 2-chlorbenzoxazolen
DE3406909A1 (de) * 1984-02-25 1985-09-05 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung von 2,6-dichlorbenzoxazol
DE3418168A1 (de) * 1984-05-16 1985-11-21 Bayer Ag, 5090 Leverkusen 6-chlorbenzazolyloxyacetamide
DE4218433A1 (de) * 1992-06-04 1993-12-09 Bayer Ag Fluorbenzoxazolyloxyacetamide
EP0626379B1 (de) * 1993-04-27 2001-03-21 Bayer Ag Verfahren zur Herstellung von 2-Chlor-benzothiazolen oder 2-Chlor-benzoxazolen

Also Published As

Publication number Publication date
PT1071674E (pt) 2004-10-29
RS49787B (sr) 2008-06-05
EP1071674A1 (de) 2001-01-31
PL341302A1 (en) 2001-04-09
CA2311578C (en) 2007-10-30
DE59811807D1 (de) 2004-09-16
CZ20002260A3 (cs) 2000-12-13
HUP0100505A2 (hu) 2001-06-28
DE19755904A1 (de) 1999-06-24
ATE273291T1 (de) 2004-08-15
KR100647960B1 (ko) 2006-11-17
CO4980865A1 (es) 2000-11-27
TR200001734T2 (tr) 2001-03-21
AU761589B2 (en) 2003-06-05
AR016434A1 (es) 2001-07-04
IL136698A (en) 2004-08-31
NO20003077D0 (no) 2000-06-15
EP1071674B1 (de) 2004-08-11
KR20010033097A (ko) 2001-04-25
CN1197851C (zh) 2005-04-20
US6274739B1 (en) 2001-08-14
JP4996009B2 (ja) 2012-08-08
JP2002508363A (ja) 2002-03-19
DE19755904C2 (de) 2000-02-03
ID26842A (id) 2001-02-15
WO1999031076A1 (de) 1999-06-24
IL136698A0 (en) 2001-06-14
UA57123C2 (uk) 2003-06-16
CZ297899B6 (cs) 2007-04-25
HUP0100505A3 (en) 2003-09-29
ES2227905T3 (es) 2005-04-01
PL195801B1 (pl) 2007-10-31
SK8852000A3 (en) 2002-02-05
CA2311578A1 (en) 1999-06-24
ZA9811499B (en) 1999-06-17
CN1282323A (zh) 2001-01-31
NO316617B1 (no) 2004-03-08
BR9813698A (pt) 2000-10-10
RU2245880C2 (ru) 2005-02-10
AU1966799A (en) 1999-07-05
MY122273A (en) 2006-04-29
SK285239B6 (sk) 2006-09-07
TW486473B (en) 2002-05-11
NO20003077L (no) 2000-06-15

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