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1

Zur Synthese und Abwandlung N-substituierter 2(1 H)-Pyrimidin-thione - Ein einfacher Zugang zu Pyrimidino[2,3-b]1,3,4-thiadiazoliumsalzen

Doz. Dr. Jürgen Liebscher, Doz. Dr. Horst Hartmann

Journal:

Advanced Synthesis & Catalysis

Year:

1982

File:

PDF, 259 KB

1982

2

Eine einfache Synthese von β-Chlorzimtsäurenitrilen nach einer modifizierten Vilsmeier-Haack-Arnold-Reaktion

Doz. Dr. JÜRgen Liebscher, Bernd Neumann, Doz. Dr. Horst Hartmann

Journal:

Advanced Synthesis & Catalysis

Year:

1983

File:

PDF, 216 KB

1983

3

Electrochemical Synthesis of 5-Amino-1,2-thiazolium Salts and their ring transformation to 3-aminopyrroles

Andreas Rolfs, Prof. Dr. Jürgen Liebscher, Holger Brosig

Journal:

Advanced Synthesis & Catalysis

Year:

1995

Language:

english

File:

PDF, 254 KB

english, 1995

4

Eine neuartige Synthese von Pyrrol-2-carbonsäure-derivaten durch Ringtransformation von 1,2-Thiazoliumsalzen unter Schwefelextrusion

Andreas Rolfs, Prof. Dr. Jürgen Liebscher

Journal:

Angewandte Chemie

Year:

1993

Language:

german

File:

PDF, 477 KB

german, 1993

5

A Novel Synthesis of Pyrrole-2-carboxylic Acid Derivatives by Ring Transformation of 1,2-Thiazolium Salts through Sulfur Extrusion

Dipl.-Chem. Andreas Rolfs, Prof. Dr. Jürgen Liebscher

Journal:

Angewandte Chemie International Edition

Year:

1993

Language:

english

File:

PDF, 355 KB

english, 1993

6

Synthesen von 2,5-disubstituierten Thiophenen aus 1-Chlor-propenyliden-(3)-immoniumsalzen und Schwefel-Nucleophilen

Dr. Jürgen Liebscher, Doz. Dr. Horst Hartmann

Journal:

Advanced Synthesis & Catalysis

Year:

1976

File:

PDF, 667 KB

1976

7

Zur Chemie aktivierter Vinylhalogenide. Synthese und Reaktionsverhalten von 3-(β-Chlor-vinyl)-acrylnitrilen

Dr. Jürgen Liebscher, Doz. Dr. Horst Hartmann

Journal:

Advanced Synthesis & Catalysis

Year:

1976

File:

PDF, 1.26 MB

1976

8

Formylation products of thioamides. III. Reactions of 3-amino and 3-hydroxythioacrylamides with alkylating reagents-Synthesis of N, N-Disubstituted 2-Aminothiophenes

Doz. Dr. Jürgen Liebscher, Dr. Berhanu Abegaz, Alemayehu Areda

Journal:

Advanced Synthesis & Catalysis

Year:

1983

Language:

english

File:

PDF, 268 KB

english, 1983

9

Formylation Products of Thioamides. IV. Reactions of 3-Dialkylamino- and 3-Hydroxythioacrylamides with Amines - Synthesis of 3-Aminothioacrylamides, 5-Aminopyrazoles and 3-Aminoisothiazolium Salts

Doz. Dr. Jürgen Liebscher, Alemayehu Areda, Dr. Berhanu Abegaz

Journal:

Advanced Synthesis & Catalysis

Year:

1983

Language:

english

File:

PDF, 329 KB

english, 1983

10

About nitrile-formamide-chloride-adducts. IX. Synthesis of 1,3- or 1,5-disubstituted 1,2,4-triazoles by the reaction of nitrile-formamide chloride-adducts and their products of hydrolysis with hydrazines

Doz. Dr. Jürgen Liebscher, Dipl.-Chem. Andrea Rumler

Journal:

Advanced Synthesis & Catalysis

Year:

1984

Language:

english

File:

PDF, 427 KB

english, 1984

11

Formylation products of thioamides. XIII. Reaction of N-(3-aminothioacryloyl)-formamidines with amines – Synthesis of Pyrimidine Derivatives

Dipl. Chem. Alexander Knoll, Doz. Dr. Jürgen Liebscher

Journal:

Advanced Synthesis & Catalysis

Year:

1985

File:

PDF, 531 KB

1985

12

Formylation products of thioamides. XIV. Synthesis of Substituted Thiazoles and Thiophenes by the reaction of N, N′-bis(aminomethylidene)thioureas or N-(3-aminothioacryloyl)-formamidines with alkylating reagents

Dipl. Chem. Alexander Knoll, Doz. Dr. Jürgen Liebscher, Dr. Reiner Radeglia

Journal:

Advanced Synthesis & Catalysis

Year:

1985

File:

PDF, 624 KB

1985

13

Synthesis of Imidazoles by reaction of N-benzylated amidines with carboxylic acid derivatives

Doz. Dr. Jürgen Liebscher, Kersten Feist

Journal:

Advanced Synthesis & Catalysis

Year:

1988

Language:

english

File:

PDF, 346 KB

english, 1988

14

Bildung von Nitrilen durch baseninduzierte Fragmentierung von N-Acylimiden und heteroanalogen Derivaten

Doz. Dr. JüRgen Liebscher, Doz. Dr. Fritz Pragst, Sabine Anders, Dr. Ute Bechstein, Jörg Bohrisch, Yohannes Kelboro, Michael Pätzel

Journal:

Advanced Synthesis & Catalysis

Year:

1988

Language:

german

File:

PDF, 214 KB

german, 1988

15

Funktionalisierte N-Acylformamidiniumsalze und -formamide als Acylierungs- bzw. Iminoformylierungsmittel für semicyclische Amidine und spezielle Amine

Dr. Ute Bechstein, Doz. Dr. Jürgen Liebscher

Journal:

Advanced Synthesis & Catalysis

Year:

1989

Language:

german

File:

PDF, 252 KB

german, 1989

16

Iminoformylierung substituierter Crotonnitrile. III. Zur Stereochemie und innermolekularen Beweglichkeit von 4-Amino-1,1-dicyanbuta-1,3-dienen

Dr. sc. Manfred Michalik, Dipl.-Chem. Kerstin Zahn, Dr. Peter Köckritz, Doz. Dr. sc. Jürgen Liebscher

Journal:

Advanced Synthesis & Catalysis

Year:

1989

File:

PDF, 529 KB

1989

17

Synthesis of Pyrimido[2,1-b]thiadiazinium Salts and 3- Mercaptopyrazolo[1,5-a]pyrimidines from 1-Amino-2(1H)-pyrimidinthiones and α-Haloketones

Doz. Dr. Jürgen Liebscher, Dr. Ahmad Hassoun

Journal:

Advanced Synthesis & Catalysis

Year:

1990

Language:

english

File:

PDF, 260 KB

english, 1990

18

Synthesis of Heterocycles by reaction of semicyclic 2-Aza-3-methylthio-propeniminium salts with 1,4- and 1,5-binucleophiles

Dr. Michael Pätzel, Doz. Dr. Jürgen Liebscher

Journal:

Advanced Synthesis & Catalysis

Year:

1991

Language:

english

File:

PDF, 138 KB

english, 1991

19

Synthese partiell hydrierter kondensierter 1,2,4-Triazole aus ω-Aminoalkyl-1,2,4-triazolen und Elektrophilen

Martin Pohl, Ute Bechstein, Michael Pätzel, Doz. Dr. Jürgen Liebscher, Peter G. Jones

Journal:

Advanced Synthesis & Catalysis

Year:

1992

Language:

german

File:

PDF, 599 KB

german, 1992

20

Ring Chain Transformations. XII [1] Synthesis of N-(3-Aminothioacryloyl)lactam Imines and their Transformation to 4-(ω-Amino-alkyl)thiazoles or N-(Thien-2-yl)lactam Imines

Dr. Michael Pätzel, Alexander Knoll, Thomas Steinke, Michael von Löwis, Jürgen Liebscher

Journal:

Advanced Synthesis & Catalysis

Year:

1993

Language:

english

File:

PDF, 382 KB

english, 1993

21

Novel Derivatives of Biogenic α-Aminoacids by ring transformations with lactam derivatives

Antje Rottmann, Prof. Dr. Jürgen Liebscher

Journal:

Advanced Synthesis & Catalysis

Year:

1995

Language:

english

File:

PDF, 1012 KB

english, 1995

22

Synthesis of Optically Active 4-Hydroxypyrazolidin-3-ones as precursors for β-amino-α-hydroxycarboxylic acid derivatives

Karsten Woydowski, Prof. Dr. Jürgen Liebscher

Journal:

Advanced Synthesis & Catalysis

Year:

1998

Language:

english

File:

PDF, 421 KB

english, 1998

23

Unexpected Hydrogenation of CC-Double Bonds with tert-Butyl Iodide

Shangde Jin, Prof. Dr. Jürgen Liebscher

Journal:

Advanced Synthesis & Catalysis

Year:

1998

Language:

english

File:

PDF, 327 KB

english, 1998