GB164757A - Process for the preparation of tropinone-mono-carboxylic acid esters - Google Patents

Process for the preparation of tropinone-mono-carboxylic acid esters

Info

Publication number
GB164757A
GB164757A GB16526/21A GB1652621A GB164757A GB 164757 A GB164757 A GB 164757A GB 16526/21 A GB16526/21 A GB 16526/21A GB 1652621 A GB1652621 A GB 1652621A GB 164757 A GB164757 A GB 164757A
Authority
GB
United Kingdom
Prior art keywords
tropinone
mono
preparation
carboxylic acid
acid esters
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
GB16526/21A
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.)
Merck KGaA
Original Assignee
E Merck 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 E Merck AG filed Critical E Merck AG
Publication of GB164757A publication Critical patent/GB164757A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D451/00—Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof
    • C07D451/02—Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof containing not further condensed 8-azabicyclo [3.2.1] octane or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane; Cyclic acetals thereof
    • C07D451/04—Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof containing not further condensed 8-azabicyclo [3.2.1] octane or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane; Cyclic acetals thereof with hetero atoms directly attached in position 3 of the 8-azabicyclo [3.2.1] octane or in position 7 of the 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring system
    • C07D451/06—Oxygen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Tropinone monocarboxylic esters are obtained by partial saponification and elimination of carbon dioxide from tropinone dicarboxylic esters (which can be obtained by condensing together the acetone dicarboxylic ester, succindialdehyde, and methylamine). In an example the dicarboxylic diethyl ester is boiled with alcoholic potash, acidified, supersaturated with ammonia, and the monocarboxylic ester isolated by extraction with ether or chlorinated hydrocarbons.
GB16526/21A 1920-06-16 1921-06-15 Process for the preparation of tropinone-mono-carboxylic acid esters Expired GB164757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE352981T 1920-06-16

Publications (1)

Publication Number Publication Date
GB164757A true GB164757A (en) 1922-03-16

Family

ID=6278954

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16526/21A Expired GB164757A (en) 1920-06-16 1921-06-15 Process for the preparation of tropinone-mono-carboxylic acid esters

Country Status (5)

Country Link
AT (1) AT91536B (en)
CH (1) CH96666A (en)
DE (1) DE352981C (en)
DK (1) DK29877C (en)
GB (1) GB164757A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2340218C (en) * 1998-09-30 2008-10-14 Nihon Medi-Physics Co., Ltd. Process for producing optically active tropinonemonocarboxylic acid ester derivative

Also Published As

Publication number Publication date
AT91536B (en) 1923-03-10
CH96666A (en) 1922-11-01
DK29877C (en) 1922-07-03
DE352981C (en) 1922-05-10

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