GB1467794A - - Google Patents

Info

Publication number
GB1467794A
GB1467794A GB4871075A GB4871075A GB1467794A GB 1467794 A GB1467794 A GB 1467794A GB 4871075 A GB4871075 A GB 4871075A GB 4871075 A GB4871075 A GB 4871075A GB 1467794 A GB1467794 A GB 1467794A
Authority
GB
United Kingdom
Prior art keywords
group
alkyl
followed
reduction
protecting group
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
GB4871075A
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 filed Critical
Priority to GB4871075A priority Critical patent/GB1467794A/en
Priority to IE2452/76A priority patent/IE43982B1/en
Priority to NZ182562A priority patent/NZ182562A/en
Priority to NL7613066A priority patent/NL7613066A/en
Priority to DK531776A priority patent/DK531776A/en
Priority to AU20085/76A priority patent/AU499698B2/en
Publication of GB1467794A publication Critical patent/GB1467794A/en
Priority to US05/940,710 priority patent/US4192805A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/44—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D317/46—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
    • C07D317/48—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
    • C07D317/50—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to atoms of the carbocyclic ring
    • C07D317/58—Radicals substituted by nitrogen atoms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

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

Abstract

1467794 Benzodioxoles NICHOLAS INTERNATIONAL Ltd 27 Nov 1975 48710/75 Heading C2C Compounds of the general formula (R, R 1 = H, C 1-4 alkyl; R<SP>3</SP> = phenolic protecting group; R<SP>4</SP>=alkyl) are prepared by reacting an alkyl 2-protected hydroxy-5-haloacetylbenzoate with the appropriate 3,4-methylenedioxyphenethylamine, followed by reduction. If R<SP>4</SP> is a methyl group it may be replaced by a branched alkyl group by effecting the reduction in the presence of the corresponding alcohol. The alkoxycarbonyl group in the product may be reduced to a hydroxymethyl group, followed by removal of the protecting group, salt formation and/or isomer separation.
GB4871075A 1975-11-27 1975-11-27 Expired GB1467794A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB4871075A GB1467794A (en) 1975-11-27 1975-11-27
IE2452/76A IE43982B1 (en) 1975-11-27 1976-11-03 Process for preparing amino ethanols
NZ182562A NZ182562A (en) 1975-11-27 1976-11-08 2(2-(3,4-methylenedioxyphenyl)-ethyl)-amino-1-(3-hydroxy-methyl-4-benzyloxyphenyl)-ethanol derivatives and internediates
NL7613066A NL7613066A (en) 1975-11-27 1976-11-24 PROCESS FOR THE PREPARATION OF AMINOETHANOLS WITH BRONCHODILATORE ACTION, PROCEDURE FOR THE PREPARATION OF A MEDICINAL PRODUCT WITH SUCH ACTION AND SUCH MEDICINAL PRODUCT.
DK531776A DK531776A (en) 1975-11-27 1976-11-25 PROCEDURES FOR THE PREPARATION OF AMINO ETHANOLS
AU20085/76A AU499698B2 (en) 1975-11-27 1976-11-29 Aminoethanols
US05/940,710 US4192805A (en) 1975-11-27 1978-09-08 Process of preparing amino ethanols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4871075A GB1467794A (en) 1975-11-27 1975-11-27

Publications (1)

Publication Number Publication Date
GB1467794A true GB1467794A (en) 1977-03-23

Family

ID=10449637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4871075A Expired GB1467794A (en) 1975-11-27 1975-11-27

Country Status (6)

Country Link
AU (1) AU499698B2 (en)
DK (1) DK531776A (en)
GB (1) GB1467794A (en)
IE (1) IE43982B1 (en)
NL (1) NL7613066A (en)
NZ (1) NZ182562A (en)

Also Published As

Publication number Publication date
NZ182562A (en) 1978-03-06
AU2008576A (en) 1978-06-08
DK531776A (en) 1977-05-28
AU499698B2 (en) 1979-04-26
IE43982L (en) 1977-05-27
NL7613066A (en) 1977-06-01
IE43982B1 (en) 1981-07-15

Similar Documents

Publication Publication Date Title
SE7613651L (en) WAY TO PREPARE PHENYLETIC ACID DERIVATIVES
GB1422518A (en) 11-deoxyprostaglandin derivatives and process therefor
JPS5297950A (en) Chalconeether derivatives
SE7807810L (en) 3-METHYLENIC LAMIC ACID DERIVATIVE
IE41102B1 (en) Haloacetanilides as fungicidally active substances
AU534651B2 (en) Distillation of ethanol by addition of salts
JPS5419931A (en) Separation of threo, erythro-3-(3,4-dibenzyloxyphenyl)serines
GB1467794A (en)
GB1247714A (en) Phenylglycine derivatives
GB1234128A (en)
JPS5271492A (en) Synthesis of 9-substituted-2-substituted thioadenines
JPS5414932A (en) Purification of phenylhydrazine
GB1509454A (en) 2-amino-tetralins
GB1247821A (en) Substituted anthraquinones
JPS5265299A (en) Synthesis of 2-substituted-thioadenosine-n-oxides
AU500145B2 (en) Xanthinyl alkyl nortropines
GB1470665A (en) Preparation of o-hydroxyphenylketones
SU597415A1 (en) Device for separating minerals according to optical properties
JPS5262295A (en) Preparation of n1-oxy-2-thioadenosines
GB1441637A (en) Preparation of morphanthridin-6-5h-ones
JPS5283436A (en) Preparation of intermediates for synthesis of prostaglandin
IE38215B1 (en) Process for the preparation of oximinonitriles
GB1244763A (en) Improvements in or relating to organic photoconductors, useful, for example, in electrophotography
JPS5283710A (en) Sulfur-containing amino acid derivatives
JPS5283753A (en) Benzotriazole

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee