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1

Efficient Synthesis of 2-Unsubstituted 1,3-Selenazoles.

Karlheinz Geisler, Andreas Kuenzler, Harald Below, Ehrenfried Bulka, Wolf-Diethard Pfeiffer, Peter Langer

Journal:

Year:

2003

File:

PDF, 140 KB

2003

2

Zur Reaktivität von 2-tert. Butylamino- und 2-(2, 2, 4-Trimethyl-pent-4-yl)amino-1, 3, 4-thiadiazinen

Wolf-Diethard Pfeiffer, Erich Dilk, Ehrenfried Bulka

Journal:

Zeitschrift für Chemie

Year:

1978

Language:

german

File:

PDF, 216 KB

german, 1978

3

Efficient Synthesis of Primary Selenocarboxylic Amides by Reaction of Nitriles with Phosphorous(V) Selenide

Geisler, Karlheinz, Jacobs, Anke, Künzler, Andreas, Mathes, Manuela, Girrleit, Ilona, Zimmermann, Birgit, Bulka, Ehrenfried, Pfeiffer, Wolf-Diethard, Langer, Peter

Journal:

Year:

2002

Language:

english

File:

PDF, 48 KB

english, 2002

4

Peroxidase catalyzed formation of azine pigments—a convenient and sensitive method for the identification of human cells with positive myeloperoxidase reactivity

Anja Bodtke, Wolf-Diethard Pfeiffer, Norbert Ahrens, Peter Langer

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

2004

Language:

english

File:

PDF, 173 KB

english, 2004

5

Horseradish peroxidase (HRP) catalyzed oxidative coupling reactions using aqueous hydrogen peroxide: an environmentally benign procedure for the synthesis of azine pigments

Anja Bodtke, Wolf-Diethard Pfeiffer, Norbert Ahrens, Peter Langer

Journal:

Year:

2005

Language:

english

File:

PDF, 162 KB

english, 2005

6

ChemInform Abstract: Synthesis of Imidazo[2,1-b][2H-1,3,4]thiadiazines and 1,2,4-Triazolo[3,4-b][2H-1,3,4]thiadiazines.

Knak, Stefanie, Pfeiffer, Wolf-Diethard, Dollinger, Horst, Saghyan, Ashot S., Langer, Peter

Journal:

Year:

2015

File:

PDF, 19 KB

2015

7

Synthesis and reactivity of 1,2,4-triazolo[1,5-c]quinazolines

Wolf-Diethard Pfeiffer, Anja Bodtke, Jana Mücke, Annemarie Hetzheim, Pavel Pazdera

Journal:

Journal of Heterocyclic Chemistry

Year:

1999

File:

PDF, 706 KB

1999

8

Synthesis of 5-thioxo-6H-imidazo[1,2-c]quinazolines and related compounds based on cyclocondensations of 2-isothiocyanatobenzonitrile (ITCB) with α-aminoketones

Anja Bodtke, Wolf-Diethard Pfeiffer, Helmar Görls, Horst Dollinger, Peter Langer

Journal:

Year:

2007

Language:

english

File:

PDF, 476 KB

english, 2007

9

Über die Kondensation des 1-Phenyl-thiocarbohydrazids mit Desylbromid

Wolf-Diethard Pfeiffer, Ehrenfried Bulka

Journal:

Zeitschrift für Chemie

Year:

1989

Language:

english

File:

PDF, 258 KB

english, 1989

10

Cyclocondensations of Substituted Thiosemicarbazides with 2-Bromo- 1,2-diphenylethan-1-one

Pfeiffer, Wolf-Diethard, Gille, Helmut, Bulka, Ehrenfried, Saghyan, Ashot, Langer, Peter

Journal:

Zeitschrift für Naturforschung B

Year:

2013

Language:

english

File:

PDF, 178 KB

english, 2013

11

Domino Cyclization of 2-Isothiocyanatobenzonitrile with Carboxylic Hydrazides — One-Pot Synthesis of 1,2,4-Triazolo[1,5-c]quinazoline-5(6H)-thiones.

Janet Blank, Madeleine Kandt, Wolf-Diethard Pfeiffer, Annemarie Hetzheim, Peter Langer

Journal:

Year:

2003

File:

PDF, 215 KB

2003

12

Peroxidase Catalyzed Formation of Azine Pigments — A Convenient and Sensitive Method for the Identification of Human Cells with Positive Myeloperoxidase Reactivity.

Anja Bodtke, Wolf-Diethard Pfeiffer, Norbert Ahrens, Peter Langer

Journal:

Year:

2004

File:

PDF, 129 KB

2004

13

Synthesis of 4-Aryl-2-imino-2 H -selenazolines by a Reaction of α α-(Selenocyanato)acetophenones With Anilines

Bodtke, Anja, Kandt, Madeleine, Pfeiffer, Wolf-Diethard, Langer, Peter

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

2007

Language:

english

File:

PDF, 138 KB

english, 2007

14

ChemInform Abstract: Synthesis and Reactions of 1,3,4-Selenadiazines.

Langer, Peter, Pfeiffer, Wolf-Diethard, Rossberg, Harald, Kelzhanova, Nazken, Villinger, Alexander, Saginayev, Amanzhan T.

Journal:

Year:

2014

Language:

english

File:

PDF, 24 KB

english, 2014

15

Synthesis of 5-Thioxo-hexahydrobenzo[ b ]thiopheno[2,3- d ]-1,2,4-triazolo[1,5- c ]pyrimidines and Related Compounds Based on Cyclocondensations of 2-Isothiocyanato-3-cyano-4,5,6,7-tetrahydrobenzo[ b ]thiophene

Pfeiffer, Wolf-Diethard, Dollinger, Horst, Langer, Peter

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

2009

Language:

english

File:

PDF, 238 KB

english, 2009

16

Cyclization of 4-Phenylthiosemicarbazide with Phenacylbromide Revisited. Formation of 1,3,4-Thiadiazines and of Isomeric 1,3-Thiazoles

Pfeiffer, Wolf-Diethard, Junghans, Dieter, Saghyan, Ashot S., Langer, Peter

Journal:

Journal of Heterocyclic Chemistry

Year:

2014

Language:

english

File:

PDF, 449 KB

english, 2014

17

Synthesis of 1,3-Selenazoles and Bis(selenazoles) from Primary Selenocarboxylic Amides and Selenourea

Geisler, Karlheinz, Pfeiffer, Wolf-Diethard, Künzler, Andreas, Below, Harald, Bulka, Ehrenfried, Langer, Peter

Journal:

Year:

2004

Language:

english

File:

PDF, 142 KB

english, 2004

18

Domino Cyclization of 2-Isothiocyanatobenzonitrile with Carboxylic Hydrazides − One-Pot Synthesis of 1,2,4-Triazolo[1,5-c]quinazoline-5(6H)-thiones

Janet Blank, Madeleine Kandt, Wolf-Diethard Pfeiffer, Annemarie Hetzheim, Peter Langer

Journal:

European Journal of Organic Chemistry

Year:

2003

Language:

english

File:

PDF, 137 KB

english, 2003

19

Synthesis of 1,3-Selenazoles and Bis(selenazoles) from Primary Selenocarboxylic Amides and Selenourea.

Karlheinz Geisler, Wolf-Diethard Pfeiffer, Andreas Kuenzler, Harald Below, Ehrenfried Bulka, Peter Langer

Journal:

Year:

2004

File:

PDF, 167 KB

2004

20

Synthesis of 2-Unsubstituted 1,3-Selenazoles by Cyclization of Selenoformamide with α -Bromocarbonyl Compounds

Below, Harald, Pfeiffer, Wolf-Diethard, Geisler, Karlheinz, Saghyan, Ashot S., Fischer, Christine, Langer, Peter

Journal:

Journal of Heterocyclic Chemistry

Year:

2015

Language:

english

File:

PDF, 359 KB

english, 2015

21

Unexpected Ring Enlargement of 2-Hydrazono-2,3-dihydro-1,3-thiazoles to 1,3,4-Thiadiazines

Pfeiffer, Wolf-Diethard, Ahlers, Klaus-Dieter, Saghyan, Ashot S., Villinger, Alexander, Langer, Peter

Journal:

Helvetica Chimica Acta

Year:

2014

Language:

english

File:

PDF, 219 KB

english, 2014

22

Selektive Pyrazolsynthese mittels Ultraschalls

Wolf-Diethard Pfeiffer, Ehrenfried Bulka, Ralf Miethchen

Journal:

Zeitschrift für Chemie

Year:

1987

File:

PDF, 259 KB

1987

23

Synthesis of Imidazo[2,1- b ][2 H -1,3,4]thiadiazines and 1,2,4-Triazolo[3,4- b ][2 H -1,3,4]thiadiazines

Knak, Stefanie, Pfeiffer, Wolf-Diethard, Dollinger, Horst, Saghyan, Ashot S., Langer, Peter

Journal:

Journal of Heterocyclic Chemistry

Year:

2015

Language:

english

File:

PDF, 442 KB

english, 2015

24

Über die Umsetzung von 2,4-Dimethylthiosemicarbazid mit α-Halogenketonen

Wolf-Diethard Pfeiffer, Erich Dilk, Ehrenfried Bulka

Journal:

Zeitschrift für Chemie

Year:

1977

Language:

german

File:

PDF, 257 KB

german, 1977

25

Zur Reaktivität von 2-Hydrazino-1,3,4-thiadiazinen

Wolf-Diethard Pfeiffer, Erich Dilk, Ehrenfried Bulka

Journal:

Zeitschrift für Chemie

Year:

1977

Language:

german

File:

PDF, 143 KB

german, 1977

26

Über die Synthese von 2H-Imidazo[2,1—b]-[1,3,4]-thiadiazinen

Ehrenfried Bulka, Wolf-Diethard Pfeiffer

Journal:

Zeitschrift für Chemie

Year:

1975

Language:

german

File:

PDF, 112 KB

german, 1975

27

Synthesis and Reactivity of 2-Pyrrolidino-, 2- N -Methylpiperazino-, 2-Piperidino-, and 2-Morpholino-1,3,4-thiadiazines

Knak, Stefanie, Pfeiffer, Wolf-Diethard, Dollinger, Horst, Langer, Peter

Journal:

Journal of Heterocyclic Chemistry

Year:

2015

Language:

english

File:

PDF, 2.17 MB

english, 2015

28

ChemInform Abstract: Unexpected Ring Enlargement of 2-Hydrazono-2,3-dihydro-1,3-thiazoles to 1,3,4-Thiadiazines.

Pfeiffer, Wolf-Diethard, Ahlers, Klaus-Dieter, Saghyan, Ashot S., Villinger, Alexander, Langer, Peter

Journal:

Year:

2014

File:

PDF, 37 KB

2014

29

Efficient Synthesis of Primary Selenocarboxylic Amides by Reaction of Nitriles with Phosphorous(V) Selenide.

Karlheinz Geisler, Anke Jacobs, Andreas Kuenzler, Manuela Mathes, Ilona Girrleit, Birgit Zimmermann, Ehrenfried Bulka, Wolf-Diethard Pfeiffer, Peter Langer

Journal:

Year:

2003

File:

PDF, 195 KB

2003

30

Über die Ringverengerung von 6 H -1,3,4-Thiadiazinen bei Einwirkung von Basen

PFEIFFER, Wolf-Diethard, DILK, Erich, BULKA, Ehrenfried

Journal:

Year:

1977

File:

PDF, 121 KB

1977

31

ChemInform Abstract: Synthesis of 2-Unsubstituted 1,3-Selenazoles by Cyclization of Selenoformamide with α-Bromocarbonyl Compounds.

Below, Harald, Pfeiffer, Wolf-Diethard, Geisler, Karlheinz, Saghyan, Ashot S., Fischer, Christine, Langer, Peter

Journal:

Year:

2015

File:

PDF, 22 KB

2015

32

Synthesis and Spectroscopic Characterization of Arylated Selenoureas

Pfeiffer, Wolf-Diethard, Ahlers, Klaus-Dieter, Falodun, Abiodun, Villinger, Alexander, Langer, Peter

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

2014

Language:

english

File:

PDF, 329 KB

english, 2014

33

ChemInform Abstract: Synthesis and Reactivity of 2-Pyrrolidino-, 2-N-Methylpiperazino-, 2-Piperidino-, and 2-Morpholino-1,3,4-thiadiazines.

Knak, Stefanie, Pfeiffer, Wolf-Diethard, Dollinger, Horst, Langer, Peter

Journal:

Year:

2015

File:

PDF, 22 KB

2015

34

Synthesis and Reactivity of 3,4-Dimethyl-4H-1,3,4-thiadiazines.

Wolf-Diethard Pfeiffer, Erich Dilk, Harald Rossberg, Peter Langer

Journal:

Year:

2004

File:

PDF, 84 KB

2004

35

Synthesis and Reactivity of 2-Acyl-1,3-selenazoles.

Karlheinz Geisler, Andreas Kuenzler, Harald Below, Ehrenfried Bulka, Wolf-Diethard Pfeiffer, Peter Langer

Journal:

Year:

2004

File:

PDF, 134 KB

2004

36

Über die Einwirkung von Butyllithium auf 6H-1,3,4-Thiadiazine

Wolf-Diethard Pfeiffer, Karlheinz Geisler, Harald Robeta, berg, Ehrenfried Bulka

Journal:

Zeitschrift für Chemie

Year:

1982

Language:

german

File:

PDF, 265 KB

german, 1982

37

ChemInform Abstract: Cyclization of 4-Phenylthiosemicarbazide with Phenacylbromide Revisited. Formation of 1,3,4-Thiadiazines and of Isomeric 1,3-Thiazoles.

Pfeiffer, Wolf-Diethard, Junghans, Dieter, Saghyan, Ashot S., Langer, Peter

Journal:

Year:

2015

Language:

english

File:

PDF, 52 KB

english, 2015

38

Synthesis and Reactions of 1,3,4-Selenadiazines

Langer, Peter, Pfeiffer, Wolf-Diethard, Roßberg, Harald, Kelzhanova, Nazken, Villinger, Alexander, T. Saginayev, Amanzhan

Journal:

Year:

2014

Language:

english

File:

PDF, 994 KB

english, 2014

39

1,3-Selenazole.

Harald Below, Wolf-Diethard Pfeiffer, Karlheinz Geisler, Michael Lalk, Peter Langer

Journal:

Year:

2005

File:

PDF, 17 KB

2005

40

Über die Umsetzung von 4-Alkylthiosemicarbaziden mit α-Halogenketonen

Wolf-Diethard Pfeiffer, Erich Dilk, Ehrenfried Bulka

Journal:

Zeitschrift für Chemie

Year:

1977

File:

PDF, 359 KB

1977

41

ChemInform Abstract: Synthesis and Reactivity of 1,2,4-Triazolo[1,5-c]quinazolines.

Wolf-Diethard Pfeiffer, Annemarie Hetzheim, Pavel Pazdera, Anja Bodtke, Jana Muecke

Journal:

Year:

2000

File:

PDF, 32 KB

2000

42

Efficient Synthesis of 2-Unsubstituted1,3-Selenazoles

Geisler, Karlheinz, Künzler, Andreas, Below, Harald, Bulka, Ehrenfried, Pfeiffer, Wolf-Diethard, Langer, Peter

Journal:

Year:

2003

Language:

english

File:

PDF, 50 KB

english, 2003

43

ChemInform Abstract: Cyclocondensations of Substituted Thiosemicarbazides with 2-Bromo-1,2-diphenylethan-1-one.

Pfeiffer, Wolf-Diethard, Gille, Helmut, Bulka, Ehrenfried, Saghyan, Ashot, Langer, Peter

Journal:

Year:

2013

File:

PDF, 30 KB

2013

44

ChemInform Abstract: ON THE SYNTHESIS OF 2H-IMIDAZO(2,1-B)(1,3,4)THIADIAZINES

BULKA, EHRENFRIED, PFEIFFER, WOLF-DIETHARD

Journal:

Chemischer Informationsdienst

Year:

1976

File:

PDF, 101 KB

1976

45

Synthesis and Functionalization of 4-Halomethyl-1,3-selenazoles.

Karlheinz Geisler, Wolf-Diethard Pfeiffer, Cornelia Mueller, Elvira Nobst, Ehrenfried Bulka, Peter Langer

Journal:

Year:

2003

File:

PDF, 114 KB

2003

46

1,3-Selenazole

Harald Below, Wolf-Diethard Pfeiffer, Karlheinz Geisler, Michael Lalk, Peter Langer

Journal:

European Journal of Organic Chemistry

Year:

2005

Language:

english

File:

PDF, 64 KB

english, 2005

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