DE1149349B - Verfahren zur Herstellung von N, N, N'-Triacetylmethylendiamin bzw. N, N, N', N'-Tetraacetylmethylendiamin oder deren Mischungen - Google Patents

Verfahren zur Herstellung von N, N, N'-Triacetylmethylendiamin bzw. N, N, N', N'-Tetraacetylmethylendiamin oder deren Mischungen

Info

Publication number
DE1149349B
DE1149349B DEK45423A DEK0045423A DE1149349B DE 1149349 B DE1149349 B DE 1149349B DE K45423 A DEK45423 A DE K45423A DE K0045423 A DEK0045423 A DE K0045423A DE 1149349 B DE1149349 B DE 1149349B
Authority
DE
Germany
Prior art keywords
tetraacetylmethylenediamine
triacetylmethylenediamine
mixtures
acetic anhydride
preparation
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.)
Pending
Application number
DEK45423A
Other languages
German (de)
English (en)
Inventor
Cornelis Ugo Kloosterman
Wilhelmus Johannes Corn Viveen
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.)
KONINK IND MIJ VOORHEEN NOURY
Original Assignee
KONINK IND MIJ VOORHEEN NOURY
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 KONINK IND MIJ VOORHEEN NOURY filed Critical KONINK IND MIJ VOORHEEN NOURY
Publication of DE1149349B publication Critical patent/DE1149349B/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
    • C11D3/3905—Bleach activators or bleach catalysts
    • C11D3/3907—Organic compounds
    • C11D3/3917—Nitrogen-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D9/00—Compositions of detergents based essentially on soap
    • C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
    • C11D9/06—Inorganic compounds
    • C11D9/08—Water-soluble compounds
    • C11D9/10—Salts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
DEK45423A 1959-06-19 1960-05-27 Verfahren zur Herstellung von N, N, N'-Triacetylmethylendiamin bzw. N, N, N', N'-Tetraacetylmethylendiamin oder deren Mischungen Pending DE1149349B (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB21220/59A GB907356A (en) 1959-06-19 1959-06-19 Improvements in or relating to washing and/or bleaching compositions
GB2606159 1959-07-29
GB3469559 1959-10-13

Publications (1)

Publication Number Publication Date
DE1149349B true DE1149349B (de) 1963-05-30

Family

ID=27257993

Family Applications (2)

Application Number Title Priority Date Filing Date
DENDAT1162967D Pending DE1162967B (de) 1959-06-19 Wasch- und/oder Bleichmittel
DEK45423A Pending DE1149349B (de) 1959-06-19 1960-05-27 Verfahren zur Herstellung von N, N, N'-Triacetylmethylendiamin bzw. N, N, N', N'-Tetraacetylmethylendiamin oder deren Mischungen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DENDAT1162967D Pending DE1162967B (de) 1959-06-19 Wasch- und/oder Bleichmittel

Country Status (7)

Country Link
US (1) US3163606A (no)
BE (1) BE591624A (no)
CA (2) CA800223A (no)
DE (2) DE1149349B (no)
FI (1) FI42698B (no)
GB (3) GB907356A (no)
NL (4) NL252798A (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004040212A1 (de) * 2004-08-19 2006-03-02 Icfs Gmbh Neue Acylierungs- und Formylierungsmittel, Verfahren zu ihrer Herstellung und neue Herstellungsverfahren für aromatische und heterocyclische Aldehyde

Families Citing this family (91)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1046487A (en) * 1962-08-20 1966-10-26 British Celanese Polyacetyl methylene diamines
DE1297574B (de) * 1964-05-12 1969-06-19 Degussa Wasch- und Bleichmittel
CA793720A (en) * 1964-12-28 1968-09-03 G. Mackellar Donald Peroxygen compositions
CA783079A (en) * 1965-06-09 1968-04-16 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Agent for the bleaching and washing of textiles
GB1182143A (en) * 1966-03-01 1970-02-25 United States Borax Chem Bleaching Compositions and Methods.
US3982891A (en) * 1967-10-24 1976-09-28 Colgate-Palmolive Company Bleaching and detergent compositions having imide activator and peroxygen bleach
US3637339A (en) * 1968-03-07 1972-01-25 Frederick William Gray Stain removal
GB1286459A (en) * 1968-12-12 1972-08-23 Unilever Ltd Detergent compositions
GB1392284A (en) 1971-03-30 1975-04-30 Unilever Ltd Stabilisation of active oxygen releasing compounds
US4009113A (en) 1971-04-30 1977-02-22 Lever Brothers Company Protection of materials
US3969257A (en) * 1971-07-23 1976-07-13 Colgate-Palmolive Company Washing and bleaching composition containing bleach, activator and a nitrilotricarboxylic acid compound
AT339246B (de) * 1974-08-14 1977-10-10 Henkel & Cie Gmbh Als bestandteil von pulverformigen wasch- und bleichmitteln geeignetes bleichhilfsmittel
AT326611B (de) * 1972-07-31 1975-12-29 Henkel & Cie Gmbh Als bestandteil von pulverförmigen wasch- und bleichmitteln geeignetes bleichhilfsmittel
JPS526867B2 (no) * 1972-09-14 1977-02-25
US3975153A (en) * 1975-08-25 1976-08-17 Fmc Corporation Activation of peroxygen bleaches using isophorone enol acetates and isophorone oximinoacetate
GB1561333A (en) * 1975-11-03 1980-02-20 Unilever Ltd Bleaching assistants
US4087369A (en) * 1976-11-08 1978-05-02 The Procter & Gamble Company Peroxybleach activated detergent composition
DE2733849A1 (de) * 1977-07-27 1979-02-15 Basf Ag Feste kaltbleichaktivatoren fuer aktivsauerstoff abgebende verbindungen enthaltende wasch- und reinigungsmittel
US4273661A (en) * 1978-05-25 1981-06-16 Colgate-Palmolive Company Article for dispensing liquid bleach softener composition
US4166794A (en) * 1978-05-25 1979-09-04 Colgate-Palmolive Company Liquid bleach-softener compositions
US4199466A (en) * 1978-08-21 1980-04-22 Shell Oil Company Activated bleaching process and compositions therefor
DE3011998C2 (de) * 1980-03-28 1982-06-16 Henkel KGaA, 4000 Düsseldorf Verfahren zur Herstellung eines lagerstabilen, leichtlöslichen Granulates mit einem Gehalt an Bleichaktivatoren
GB2078716B (en) * 1980-06-27 1985-04-24 Warwick Chem Ltd Production of amines
EP0053859B1 (en) 1980-12-09 1985-04-03 Unilever N.V. Bleach activator granules
US4421668A (en) * 1981-07-07 1983-12-20 Lever Brothers Company Bleach composition
DE3128336A1 (de) * 1981-07-17 1983-01-27 Henkel KGaA, 4000 Düsseldorf "verfahren zur herstellung umhuellter koerniger bleichaktivatoren"
DE3218889A1 (de) * 1982-05-19 1983-11-24 Hoechst Ag, 6230 Frankfurt Verfahren zum gleichzeitigen entschlichten und bleichen von textilmaterial aus cellulosefasern
DE3304848A1 (de) * 1983-02-12 1984-08-16 Henkel KGaA, 4000 Düsseldorf Organische cyanamidverbindungen als aktivatoren fuer anorganische perverbindungen
GB8422158D0 (en) * 1984-09-01 1984-10-03 Procter & Gamble Ltd Bleach compositions
US4964870A (en) * 1984-12-14 1990-10-23 The Clorox Company Bleaching with phenylene diester peracid precursors
AU7538387A (en) * 1986-07-15 1988-01-21 Warner-Lambert Company Bleach activator compositions
GB8619152D0 (en) * 1986-08-06 1986-09-17 Unilever Plc Conditioning fabrics
GB8619153D0 (en) * 1986-08-06 1986-09-17 Unilever Plc Fabric conditioning composition
US5049305A (en) * 1986-11-06 1991-09-17 Zielske Alfred G Phenoxyacetate peracid precursors and perhydrolysis systems therewith
US5087385A (en) * 1986-11-06 1992-02-11 The Clorox Company Acyloxynitrogen peracid precursors
US4957647A (en) * 1986-11-06 1990-09-18 The Clorox Company Acyloxynitrogen peracid precursors
US4956117A (en) * 1986-11-06 1990-09-11 The Clorox Company Phenoxyacetate peracid precursors and perhydrolysis systems therewith
US4859800A (en) * 1986-11-06 1989-08-22 The Clorox Company Phenoxyacetate peracid precursors
EP0331229B1 (en) * 1988-03-01 1993-08-18 Unilever N.V. Quaternary ammonium compounds for use in bleaching systems
DE3842008A1 (de) * 1988-12-14 1990-06-21 Hoechst Ag Verwendung von triacylierten ehtanolaminen als fluessige, wassermischbare peroxidaktivatoren
DE3843195A1 (de) * 1988-12-22 1990-06-28 Hoechst Ag Verfahren zur herstellung eines lagerstabilen, leicht loeslichen bleichaktivator-granulats
US5000869A (en) * 1990-02-14 1991-03-19 Safe Aid Products, Inc. Novel polymer coated bleaching composition
GB9003741D0 (en) * 1990-02-19 1990-04-18 Unilever Plc Bleach activation
SK278834B6 (sk) * 1992-01-17 1998-03-04 Unilever Nv Časticová bieliaca detergentná zmes
SK278833B6 (sk) * 1992-01-17 1998-03-04 Unilever Nv Časticová bieliaca detergentná zmes
US5372740A (en) * 1993-09-03 1994-12-13 Lever Brothers Company, Division Of Conopco, Inc. Homogeneous liquid automatic dishwashing detergent composition based on sodium potassium tripolyphosphate
US5468410A (en) * 1993-10-14 1995-11-21 Angevaare; Petrus A. Purine class compounds in detergent compositions
US5480576A (en) * 1993-10-14 1996-01-02 Lever Brothers Company, Division Of Conopco, Inc. 1,3-N azole containing detergent compositions
GB2294268A (en) 1994-07-07 1996-04-24 Procter & Gamble Bleaching composition for dishwasher use
EP0693549A1 (en) 1994-07-19 1996-01-24 The Procter & Gamble Company Solid bleach activator compositions
JP3334363B2 (ja) * 1994-08-31 2002-10-15 三菱瓦斯化学株式会社 カビ取り剤組成物およびカビの漂白方法
US5856282A (en) * 1994-12-22 1999-01-05 The Procter & Gamble Company Silicone compositions
DE19530786A1 (de) 1995-08-22 1997-02-27 Hoechst Ag Bleichmittelzusammensetzung enthaltend Polyoxometallate als Bleichkatalysator
EP0778340A3 (en) 1995-12-06 1999-10-27 Basf Corporation Improved non-phosphate machine dishwashing compositions containing copolymers of alkylene oxide adducts of allyl alcohol and acrylic acid
US5750483A (en) 1995-12-06 1998-05-12 Basf Corporation Non-phosphate machine dishwashing compositions containing polycarboxylate polymers and nonionic graft copolymers of vinyl acetate and polyalkylene oxide
DE19600159A1 (de) 1996-01-04 1997-07-10 Hoechst Ag Bleichmittelsysteme enthaltend Bis- und Tris-(mu-oxo)-di-Mangan-Komplexsalze
DE19605526A1 (de) 1996-02-15 1997-08-21 Hoechst Ag Ammoniumnitrile und deren Verwendung als Bleichaktivatoren
DE19606343A1 (de) 1996-02-21 1997-08-28 Hoechst Ag Bleichmittel
US5850086A (en) * 1996-06-21 1998-12-15 Regents Of The University Of Minnesota Iron complexes for bleach activation and stereospecific oxidation
DE19635070A1 (de) * 1996-08-30 1998-03-05 Clariant Gmbh Flüssige Bleichmittelsuspension
DE19801049A1 (de) * 1998-01-14 1999-07-15 Clariant Gmbh Verwendung von Formamidinium-Salzen als Bleichaktivatoren
DE19841184A1 (de) * 1998-09-09 2000-03-16 Clariant Gmbh Bleichaktivatorgranulate
US6369288B1 (en) 2000-01-05 2002-04-09 The United States Of America As Represented By The Secretary Of The Navy Chemical and biological warfare decontaminating solution using bleach activators
GB0011527D0 (en) 2000-05-12 2000-06-28 Unilever Plc Bleach catalyst and composition and method for bleaching a substrate
WO2002072746A1 (en) 2001-03-14 2002-09-19 Unilever Plc Bleaching catalysts with unsaturated surfactant and antioxidants
GB0106285D0 (en) 2001-03-14 2001-05-02 Unilever Plc Air bleaching catalysts with moderating agent
EP1504082A1 (en) * 2002-05-16 2005-02-09 The Procter & Gamble Company Rinse-added fabric treatment composition and methods and uses thereof
JP2008512528A (ja) * 2004-09-08 2008-04-24 クラリアント・プロドゥクテ・（ドイチュラント）・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 漂白剤混合物
DE102004043360A1 (de) * 2004-09-08 2006-03-09 Clariant Gmbh Bleichaktivator-Mischungen
TR201905689T4 (tr) 2008-04-09 2019-05-21 Basf Se Hidrazit bileşiklerinin oksidasyon katalizörleri olarak kullanımı.
US8969283B2 (en) * 2009-02-05 2015-03-03 American Sterilizer Company Low odor, hard surface sporicides and chemical decontaminants
GB0918914D0 (en) 2009-10-28 2009-12-16 Revolymer Ltd Composite
RU2570902C2 (ru) 2010-06-28 2015-12-20 Басф Се Отбеливающая композиция, не содержащая металл
KR101912962B1 (ko) 2010-12-13 2018-10-29 바스프 에스이 표백 촉매
GB201106409D0 (en) 2011-04-15 2011-06-01 Revolymer Ltd Novel composite
WO2014202954A1 (en) 2013-06-20 2014-12-24 Chemsenti Limited Bleach and oxidation catalyst
ES2894685T3 (es) 2013-08-16 2022-02-15 Catexel Tech Limited Composición
WO2017076771A1 (en) 2015-11-03 2017-05-11 Basf Se Bleach catalysts
EP3176157A1 (en) 2015-12-01 2017-06-07 Basf Se Bleach catalysts
WO2017182295A1 (en) 2016-04-18 2017-10-26 Basf Se Liquid cleaning compositions
WO2017186480A1 (en) 2016-04-26 2017-11-02 Basf Se Metal free bleaching composition
IT201600070454A1 (it) 2016-07-06 2016-10-06 3V Sigma Spa Attivatori di composti perossigenati
EP3372663A1 (en) 2017-03-10 2018-09-12 Basf Se Bleach catalysts
WO2021170840A1 (en) 2020-02-28 2021-09-02 Catexel Technologies Limited Degradative method
EP3967742A1 (en) 2020-09-15 2022-03-16 WeylChem Performance Products GmbH Compositions comprising bleaching catalyst, manufacturing process thereof, and bleaching and cleaning agent comprising same
EP4008765A1 (en) 2020-12-07 2022-06-08 WeylChem Performance Products GmbH Compositions comprising protonated triazacyclic compounds and bleaching agent and cleaning agent comprising same
EP4296343A1 (en) 2022-06-24 2023-12-27 WeylChem Performance Products GmbH Compositions comprising protonated triazacyclic compounds and manganese(ii) acetate, manufacturing thereof, and bleaching and cleaning agent comprising same
WO2024175409A1 (en) 2023-02-21 2024-08-29 Basf Se Modified hyperbranched alkoxylated polyalkylene imines
WO2024175401A1 (en) 2023-02-21 2024-08-29 Basf Se Modified alkoxylated polyalkylene imines or modified alkoxylated polyamines
WO2024175407A1 (en) 2023-02-21 2024-08-29 Basf Se Modified alkoxylated polyalkylene imines or modified alkoxylated polyamines
WO2024188713A1 (en) 2023-03-13 2024-09-19 Basf Se Alkoxylated nitrogen containing polymers and their use

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1950956A (en) * 1931-10-19 1934-03-13 Marshall Field & Company Method of coating chloramine and product thereof
US2267685A (en) * 1938-07-05 1941-12-23 Monsanto Chemicals Nu,nu'-lower aliphatic diacyl-nu, nu'-dicyclohexyl alkylene diamines
US2445319A (en) * 1939-04-22 1948-07-20 American Hyalsol Corp Method for the manufacture of quaternary nitrogen compounds
US2742501A (en) * 1951-06-11 1956-04-17 Glanzstoff Ag Method of producing alkylidene bis-amides
DE1010048B (de) * 1953-05-20 1957-06-13 Degussa Verfahren zum Waschen von Faserstoffen oder Textilwaren
DE1093773B (de) * 1953-11-21 1960-12-01 Degussa Verfahren zum Waschen von Faserstoffen oder Textilwaren
US2838459A (en) * 1955-02-01 1958-06-10 Pennsalt Chemicals Corp Stabilization of solutions containing peroxygen compounds
BE548769A (no) * 1955-07-08
US2927082A (en) * 1956-01-19 1960-03-01 Du Pont Peroxide bleaching compositions and their use
GB831002A (en) * 1956-10-18 1960-03-23 American Cyanamid Co Preparation of monothiooxamide
US2923738A (en) * 1958-05-08 1960-02-02 Gen Aniline & Film Corp Addition products of n-alkyl-gamma-hydroxycarboxylic acid amides and alkanolamines
US3061550A (en) * 1959-05-11 1962-10-30 Du Pont Textile bleaching composition

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004040212A1 (de) * 2004-08-19 2006-03-02 Icfs Gmbh Neue Acylierungs- und Formylierungsmittel, Verfahren zu ihrer Herstellung und neue Herstellungsverfahren für aromatische und heterocyclische Aldehyde
DE102004040212B4 (de) * 2004-08-19 2007-07-05 Icfs Gmbh Neue Acylierungs- und Formylierungsmittel, Verfahren zu ihrer Herstellung und neue Herstellungsverfahren für aromatische und heterocyclische Aldehyde

Also Published As

Publication number Publication date
NL130608C (no)
NL97449C (no)
DE1162967B (de) 1964-02-13
CA678942A (en) 1964-01-28
CA800223A (en) 1968-12-03
FI42698B (no) 1970-06-30
BE591624A (no)
NL252798A (no) 1900-01-01
US3163606A (en) 1964-12-29
GB907356A (en) 1962-10-03
NL239952A (no)
GB907357A (en) 1962-10-03
GB907358A (en) 1962-10-03

Similar Documents

Publication Publication Date Title
DE1149349B (de) Verfahren zur Herstellung von N, N, N'-Triacetylmethylendiamin bzw. N, N, N', N'-Tetraacetylmethylendiamin oder deren Mischungen
DE1255103B (de) Verfahren zur kontinuierlichen Gewinnung von Acrylsaeurenitril und Acetonitril aus deren waessrigen Loesungen
DE3319651A1 (de) Verfahren zur destillativen gewinnung von ameisensaeure
DE2723474C2 (no)
DE2526748C3 (de) Verfahren zur Reindarstellung von Alkoxyacetonen
DE1161273B (de) Verfahren zur Herstellung von N-substituierten 3-Oxypyrrolidinbenzilsäureestern.
EP0292674A2 (de) Verfahren zur Herstellung von Propinol
CH416661A (de) Verfahren zur Herstellung von Tri- bzw. Tetraacetylmethylendiamin
DE544499C (de) Verfahren zur Darstellung von Milchsaeureestern
AT228769B (de) Verfahren zur Herstellung der neuen Verbindungen, N,N,N,'-Triacetyl-methylendiamin und N,N,N',N'-Tetraacetyl-methylendiamin
DE960813C (de) Verfahren zur Herstellung von ungesaettigten ª†- und ª€-Laktonen
DE947474C (de) Verfahren zur Herstellung von 1-Methylcyclohexen-(1)
DE917727C (de) Verfahren zur Gewinnung von m-Kresol aus dessen Gemischen mit Alkylcyclohexanonen bzw. Alkylcyclohexanolen
DE1254623B (de) Verfahren zur Abtrennung von Acrylsaeure-n-butylester aus seinem Gemisch mit n-Butanol
AT218509B (de) Verfahren zur Herstellung von basisch substituierten Carbinolen, sowie von ihren sterisch einheitlichen Razematen und deren optisch aktiven Komponenten und/oder ihren Säureadditionssalzen
DE960896C (de) Verfahren zur Herstellung von Tetrahydrofurfurylalkoholcarbaminsaeureestern
AT243268B (de) Verfahren zur Herstellung von neuen Benzochinolizin-Derivaten
AT235277B (de) Verfahren zur Herstellung von 3-(1'-Tetralyl)-propanol-(1)
DE1004191B (de) Verfahren zur Herstellung von organischen Hydroxylaminverbindungen
DE871751C (de) Verfahren zur Gewinnung des Pentaerythrit-dichlorhydrinmonoschwefligsaeureesters
DE863041C (de) Verfahren zur Gewinnung von aliphatischen Dicarbonsaeuren
DE1057133B (de) Verfahren zur Herstellung neuer, pharmakologisch wirkender 1, 1-Diphenyl-2-aminoalkanole
DE1094724B (de) Verfahren zur Abtrennung von Trimethylborat aus seinem Azeotrop mit Methanol
DE1125414B (de) Verfahren zur Herstellung von Phthalsaeureestern
DE1041504B (de) Verfahren zur Herstellung von tetracyclischen Verbindungen mit dem Grundgeruest des Erythrinans