GB1098977A - Production of ª‡-methylindoles - Google Patents

Production of ª‡-methylindoles

Info

Publication number
GB1098977A
GB1098977A GB2022065A GB2022065A GB1098977A GB 1098977 A GB1098977 A GB 1098977A GB 2022065 A GB2022065 A GB 2022065A GB 2022065 A GB2022065 A GB 2022065A GB 1098977 A GB1098977 A GB 1098977A
Authority
GB
United Kingdom
Prior art keywords
strong mineral
acid
production
boric acid
methylindoles
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
GB2022065A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1098977A publication Critical patent/GB1098977A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/04—Indoles; Hydrogenated indoles
    • C07D209/08—Indoles; Hydrogenated indoles with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to carbon atoms of the hetero ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Indole Compounds (AREA)

Abstract

A process for the production of a -methyl indoles comprises reacting acetone with an aromatic hydrazine of general formula <FORM:1098977/C2/1> or a salt thereof, in which R denotes a hydrogen atom or an alkyl radical at elevated temperature in the presence of a strong mineral acid used as an acid condensing agent and in the presence of boric acid. Suitable strong mineral acids are H2SO4, H3PO4 and HCl. Boric acid is used in amounts of 1 to 20% by weight based on the amount of strong mineral acid used.
GB2022065A 1964-05-14 1965-05-13 Production of ª‡-methylindoles Expired GB1098977A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB76769A DE1295554B (en) 1964-05-14 1964-05-14 Process for the production of ª ‡ -Methylindoles

Publications (1)

Publication Number Publication Date
GB1098977A true GB1098977A (en) 1968-01-10

Family

ID=6979213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2022065A Expired GB1098977A (en) 1964-05-14 1965-05-13 Production of ª‡-methylindoles

Country Status (4)

Country Link
BE (1) BE663712A (en)
CH (1) CH446334A (en)
DE (1) DE1295554B (en)
GB (1) GB1098977A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE574840C (en) * 1931-11-01 1933-04-20 I G Farbenindustrie Akt Ges Process for the preparation of indoles

Also Published As

Publication number Publication date
BE663712A (en) 1965-11-10
DE1295554B (en) 1969-05-22
CH446334A (en) 1967-11-15

Similar Documents

Publication Publication Date Title
GB1015657A (en) Process for the production of polyether-thioethers
ES320296A1 (en) Procedure for the preparation of new derivatives of indol. (Machine-translation by Google Translate, not legally binding)
GB842804A (en) Preparation of substituted piperazines
GB1098977A (en) Production of ª‡-methylindoles
GB1100714A (en) 3-deoxy-ribofuranosyl derivatives
ES277395A1 (en) Procedure for the preparation of new organic phosphorous compounds containing halogen (Machine-translation by Google Translate, not legally binding)
GB777544A (en) Water soluble organic copper compounds and a process for their production
GB1121140A (en) Process for preparing 3-aminoisoxazole derivatives
GB997476A (en) Process for the manufacture of linear quinacridones
GB1094810A (en) Unsaturated 4,5-seco-steroid compounds, and processes for their preparation
ES434460A1 (en) Process for the production of aromatic and cycloaliphatic dicarboxylic acid diamides
GB1082547A (en) Process for producing nitrosocyclohexane dimer
ES386716A1 (en) Procedure for the preparation of new derivatives of tiepine. (Machine-translation by Google Translate, not legally binding)
GB918169A (en) New 6-amino-penicillanic acid derivatives
GB937879A (en) New pyrazole-carboxylic acid hydrazides
GB974155A (en) Process for the preparation of 2,6-diketo-8-thiapurines
GB1027578A (en) Phenyl-cyclohexyl-alkylamines
GB649692A (en) Manufacture of biguanide derivatives
GB952137A (en) New 3-azabicyclo [3.3.1] nonane compounds and a process for preparing these compounds
GB888418A (en) Improvements in or relating to reserpine and its derivatives
ES278243A1 (en) Procedure for the preparation of new N-heterocyclic compounds (Machine-translation by Google Translate, not legally binding)
GB1088600A (en) Benzo (f) isoindole compounds and production thereof
GB1011551A (en) Improvements in or relating to 5-amino-1,5-diazacyclooctanes
GB906802A (en) Improvements in or relating to pyrrolenine bases
GB877355A (en) Aromatic carboxylic acids