ES464174A1 - Process for producing 3-bromophthalide - Google Patents

Process for producing 3-bromophthalide

Info

Publication number
ES464174A1
ES464174A1 ES464174A ES464174A ES464174A1 ES 464174 A1 ES464174 A1 ES 464174A1 ES 464174 A ES464174 A ES 464174A ES 464174 A ES464174 A ES 464174A ES 464174 A1 ES464174 A1 ES 464174A1
Authority
ES
Spain
Prior art keywords
bromophthalide
producing
chlorophthalide
hbr
molten
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES464174A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of ES464174A1 publication Critical patent/ES464174A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/87—Benzo [c] furans; Hydrogenated benzo [c] furans
    • C07D307/88—Benzo [c] furans; Hydrogenated benzo [c] furans with one oxygen atom directly attached in position 1 or 3

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Furan Compounds (AREA)

Abstract

3-Bromophthalide is prepared from 3-chlorophthalide by allowing the stoichiometric quantity of HBr to act at above 85 DEG C on molten 3-chlorophthalide.
ES464174A 1976-11-17 1977-11-16 Process for producing 3-bromophthalide Expired ES464174A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762652299 DE2652299B2 (en) 1976-11-17 1976-11-17 Process for the preparation of 3-bromophthalide

Publications (1)

Publication Number Publication Date
ES464174A1 true ES464174A1 (en) 1978-09-01

Family

ID=5993339

Family Applications (1)

Application Number Title Priority Date Filing Date
ES464174A Expired ES464174A1 (en) 1976-11-17 1977-11-16 Process for producing 3-bromophthalide

Country Status (10)

Country Link
JP (1) JPS6056147B2 (en)
BE (1) BE860901A (en)
CH (1) CH630622A5 (en)
DE (1) DE2652299B2 (en)
DK (1) DK143132C (en)
ES (1) ES464174A1 (en)
FR (1) FR2371440A1 (en)
GB (1) GB1537815A (en)
IT (1) IT1112096B (en)
NL (1) NL7712620A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2934822A1 (en) * 1979-08-29 1981-03-19 Dynamit Nobel Ag, 5210 Troisdorf METHOD FOR PRODUCING 3-BROMPHTHALIDE
CN116041295B (en) * 2023-03-31 2023-06-06 寿光祥铭化工有限公司 Preparation method of 3-bromophthalide

Also Published As

Publication number Publication date
DE2652299C3 (en) 1979-04-26
DK143132B (en) 1981-06-29
GB1537815A (en) 1979-01-04
JPS6056147B2 (en) 1985-12-09
FR2371440B1 (en) 1982-07-09
DE2652299B2 (en) 1978-08-31
JPS5363372A (en) 1978-06-06
CH630622A5 (en) 1982-06-30
DE2652299A1 (en) 1978-05-18
DK143132C (en) 1981-11-23
BE860901A (en) 1978-03-16
NL7712620A (en) 1978-05-19
DK507977A (en) 1978-05-18
IT1112096B (en) 1986-01-13
FR2371440A1 (en) 1978-06-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19920721