Fritz Duus: search on Z-Library

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1

Investigation of Curry Leaf Essential Oils of Murraya koenigii Spreng. Growing in the South of Vietnam

Thi Nguyen, Thao-Tran, The Diep, Tai, Hoang, Viet, Mai Vo, Thu-Huong, Duus, Fritz, Ngoc Le, Thach

Journal:

Journal of Essential Oil Bearing Plants

Year:

2012

Language:

english

File:

PDF, 92 KB

english, 2012

2

Synthesis of ß-Thioxoketones: by t -Butyllithium-Promoted Claisen Condensation Reaction of Ketones with Thionoesters

Journal:

Year:

1985

File:

PDF, 190 KB

1985

3

Methyl esterification of carboxylic acids with dimethyl carbonate promoted by K 2 CO 3 /tetrabutylammonium chloride

Chau, Khiem D.N., Duus, Fritz, Le, Thach N.

Journal:

Green Chemistry Letters and Reviews

Year:

2013

Language:

english

File:

PDF, 127 KB

english, 2013

4

Association between the E-wave propagation index and left ventricular thrombus formation after ST-elevation myocardial infarction

Duus, Lisa Steen, Pedersen, Sune, Ravnkilde, Kirstine, Galatius, SÃ¸ren, Fritz-Hansen, Thomas, Biering-SÃ¸rensen, Tor, Olsen, Flemming Javier

Journal:

International Journal of Cardiology

Year:

2020

File:

PDF, 2.65 MB

2020

5

Oliveridepsidones A–D, antioxidant depsidones from Garcinia oliveri

Ly Dieu Ha, Poul Erik Hansen, Fritz Duus, Hung Dinh Pham, Lien-Hoa D. Nguyen

Journal:

Magnetic Resonance in Chemistry

Year:

2012

Language:

english

File:

PDF, 249 KB

english, 2012

6

A new chromanone acid from the bark of Calophyllum dryobalanoides

Ly D. Ha, Poul Erik Hansen, Fritz Duus, Hung D. Pham, Lien-Hoa D. Nguyen

Journal:

Phytochemistry Letters

Year:

2012

Language:

english

File:

PDF, 285 KB

english, 2012

7

Benign and efficient preparation of thioethers by solvent-free S -alkylation of thiols with alkyl halides catalyzed by potassium fluoride on alumina

Nguyen, Kha Ngoc, Duus, Fritz, Luu, Thi Xuan Thi

Journal:

Journal of Sulfur Chemistry

Year:

2016

Language:

english

File:

PDF, 2.36 MB

english, 2016

8

Conjugative effects on the enol-enethiol tautomerism of .beta.-thioxoketones

Carlsen, Lars, Duus, Fritz

Journal:

Journal of the American Chemical Society

Year:

1978

Language:

english

File:

PDF, 263 KB

english, 1978

9

?-Thioxo-esters. Part III. The spontaneous intramolecular cyclization of tautomeric diethyl thioacetylsuccinate. Preparation and tautomerism of 4-ethoxycarbonyl-5-methylthiophen-2(3H)-one

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1978

Language:

english

File:

PDF, 535 KB

english, 1978

10

Cytotoxic Coumarins from the Bark of Mammea siamensis

Ngo, Ngoc Trang Nhu, Nguyen, Vy Thuy, Vo, Hoa Van, Vang, Ole, Duus, Fritz, Ho, Thuy-Duong Huynh, Pham, Hung Dinh, Nguyen, Lien-Hoa Dieu

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

2010

Language:

english

File:

PDF, 244 KB

english, 2010

11

Deuterium isotope effects on 13C nuclear shielding as a measure of tautomeric equilibria

Poul Erik Hansen, Fritz Duus, Peter Schmitt

Journal:

Magnetic Resonance in Chemistry

Year:

1982

Language:

english

File:

PDF, 268 KB

english, 1982

12

The electronic structure of .beta.-thioxoketones. A photoelectron spectroscopic study of the enol-enethiol tautomerism of thioacetylacetone and related compounds

Joergensen, Flemming S., Carlsen, Lars, Duus, Fritz

Journal:

Journal of the American Chemical Society

Year:

1981

Language:

english

File:

PDF, 1013 KB

english, 1981

13

.beta.-Thioxo ketones. 2. Preparation and structure of some five- and six-membered 2-acylcycloalkanethiones and 2-thioacylcycloalkanones

Journal:

Journal of Organic Chemistry

Year:

1977

Language:

english

File:

PDF, 625 KB

english, 1977

14

Dramatic Influence of Ionic Liquid and Ultrasound Irradiation on the Electrophilic Sulfinylation of Aromatic Compounds by Sulfinic Esters

Nguyen, Ngoc-Lan, Vo, Hong-Thom, Duus, Fritz, Luu, Thi

Journal:

Year:

2017

File:

PDF, 6.91 MB

2017

15

ChemInform Abstract: Friedel—Crafts Acylation Using Bismuth Triflate in [BMI][PF6].

Phuong Hoang Tran, Fritz Duus, Thach Ngoc Le

Journal:

Year:

2012

File:

PDF, 30 KB

2012

16

ENOL-ENETHIOL TAUTOMERISM OF β-THIOXOKETONES

Journal:

Phosphorous and Sulfur and the Related Elements

Year:

1979

Language:

english

File:

PDF, 82 KB

english, 1979

17

Microwave- and Ultrasound-Accelerated Green Oxidation of Alcohols by Potassium Permanganate absorbed on Copper(II) Sulfate Pentahydrate

Luu, Thi Xuan Thi, Christensen, Peter, Duus, Fritz, Le, Thach Ngoc

Journal:

Synthetic Communications

Year:

2008

Language:

english

File:

PDF, 165 KB

english, 2008

18

Effect of 4-Methoxyindole-3-carbinol on the Proliferation of Colon Cancer Cells in Vitro, When Treated Alone or in Combination with Indole-3-carbinol

Kronbak, Remy, Duus, Fritz, Vang, Ole

Journal:

Journal of Agricultural and Food Chemistry

Year:

2010

Language:

english

File:

PDF, 944 KB

english, 2010

19

Definitive evidence for the existence of the hydrogen-bonding enol form of non-aromatic ?-thioxoketones. X-Ray crystal structure of 1-(1-methylcyclopropyl)-3-thioxobutan-1-one

N�rskov-Lauritsen, Leif, Carlsen, Lars, Duus, Fritz

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1983

Language:

english

File:

PDF, 267 KB

english, 1983

20

SOLVENT AND SUBSTITUENT INFLUENCE ON THE CHELATE PROTON NMR CHEMICAL SHIFT OF AROMATIC β-THIOXOKETONES

J⊘gart, Tommy, Andresen, Birgit, Duus, Fritz

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

1991

Language:

english

File:

PDF, 312 KB

english, 1991

21

Long-range deuterium isotope effects in tautomeric β-thioxoketones. A 1H and 13C NMR study

Poul Erik Hansen, Ulrik Skibsted, Fritz Duus

Journal:

Journal of Physical Organic Chemistry

Year:

1991

Language:

english

File:

PDF, 605 KB

english, 1991

22

Photochromism in p-methylbenzoylthioacetone and related β-thioxoketones

Alexander Gorski, Yevgen Posokhov, Bjarke K.V. Hansen, Jens Spanget-Larsen, Jan Jasny, Fritz Duus, Poul Erik Hansen, Jacek Waluk

Journal:

Chemical Physics

Year:

2007

Language:

english

File:

PDF, 879 KB

english, 2007

23

Fast preparation of dihydrocyclocitral from citronellal under solventless microwave irradiation

Nhuan Ngoc Doan, Thach Ngoc Le, Poul Erik Hansen, Fritz Duus

Journal:

Tetrahedron Letters

Year:

2005

Language:

english

File:

PDF, 95 KB

english, 2005

24

Friedolanostane, friedocycloartane and benzophenone constituents of the bark and leaves of Garcinia benthami

Hiep D. Nguyen, Binh T.D. Trinh, Quyen N. Tran, Hoan D. Nguyen, Hung D. Pham, Poul Erik Hansen, Fritz Duus, Joseph D. Connolly, Lien-Hoa D. Nguyen

Journal:

Year:

2011

Language:

english

File:

PDF, 295 KB

english, 2011

25

Upward Trend in Catalytic Efficiency of Rare-Earth Triflate Catalysts in Friedel-Crafts Aromatic Sulfonylation Reactions

Nguyen, Vo Thu An, Duus, Fritz, Le, Thach Ngoc

Journal:

Asian Journal of Organic Chemistry

Year:

2014

Language:

english

File:

PDF, 269 KB

english, 2014

26

Intramolecular hydrogen bonding of novel o-hydroxythioacetophenones and related compounds evaluated by deuterium isotope effects on 13C chemical shifts

Trung Thanh Nguyen, Thach Ngoc Le, Fritz Duus, Bjarke K. V. Hansen, Poul Erik Hansen

Journal:

Magnetic Resonance in Chemistry

Year:

2007

Language:

english

File:

PDF, 374 KB

english, 2007

27

ChemInform Abstract: Cytotoxic Coumarins from the Bark of Mammea siamensis.

Ngoc Trang Nhu Ngo, Vy Thuy Nguyen, Hoa Van Vo, Ole Vang, Fritz Duus, Thuy-Duong Huynh Ho, Hung Dinh Pham, Lien-Hoa Dieu Nguyen

Journal:

Year:

2011

File:

PDF, 23 KB

2011

28

Photochromism and polarization spectroscopy of p-methyl(thiobenzoyl)acetone

Alexander Gorski, Yevgen Posokhov, Bjarke K.V. Hansen, Jens Spanget-Larsen, Jan Jasny, Fritz Duus, Poul Erik Hansen, Jacek Waluk

Journal:

Chemical Physics

Year:

2006

Language:

english

File:

PDF, 799 KB

english, 2006

29

On hydrogen bonding in the intramolecularly chelated tautomers of enolic malondialdehyde and its mono- and dithio-analogues

Carlsen, Lars, Duus, Fritz

Journal:

Journal of the Chemical Society Perkin Transactions 2

Year:

1980

Language:

english

File:

PDF, 366 KB

english, 1980

30

Tautomerism of enolic triacetylmethane, 2-acyl-1,3-cycloalkanediones, 5-acyl Meldrum’s acids and 5-acyl-1,3-dimethylbarbituric acids studied by means of deuterium isotope effects on 13C chemical shifts

Simon Bolvig, Fritz Duus, Poul Erik Hansen

Journal:

Magnetic Resonance in Chemistry

Year:

1998

Language:

english

File:

PDF, 290 KB

english, 1998

31

ChemInform Abstract: Cytotoxic Geranylated Xanthones and O-Alkylated Derivatives of α-Mangostin

Ly Dieu Ha, Poul Erik Hansen, Ole Vang, Fritz Duus, Hung Dinh Pham, Lien-Hoa Dieu Nguyen

Journal:

Year:

2010

File:

PDF, 22 KB

2010

32

Improved synthesis methods of standards used for quantitative determination of total isothiocyanates from broccoli in human urine

Mette Kristensen, Kirstine S. Krogholm, Hanne Frederiksen, Fritz Duus, Claus Cornett, Susanne H. Bügel, Salka E. Rasmussen

Journal:

Journal of Chromatography B

Year:

2007

Language:

english

File:

PDF, 407 KB

english, 2007

33

?-Thioxo-ketones. Part 5. Photo-induced enol?enethiol interconversion of ?-thioxo-ketones

Carlsen, Lars, Duus, Fritz

Journal:

Journal of the Chemical Society Perkin Transactions 2

Year:

1979

Language:

english

File:

PDF, 326 KB

english, 1979

34

Ultrasound accelerated synthesis of asymmetrical thiosulfonate s -esters by base-promoted reaction of sulfonyl chlorides with thiols

Pham, Hien Thi, Nguyen, Ngoc-Lan Thi, Duus, Fritz, Luu, Thi Xuan Thi

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

2015

Language:

english

File:

PDF, 780 KB

english, 2015

35

Monothiodibenzoylmethane: Structural and vibrational assignments

Bjarke K.V. Hansen, Alexander Gorski, Yevgen Posokhov, Fritz Duus, Poul Erik Hansen, Jacek Waluk, Jens Spanget-Larsen

Journal:

Vibrational Spectroscopy

Year:

2007

Language:

english

File:

PDF, 662 KB

english, 2007

36

Molecular and vibrational structure of thiosulfonate S-esters

Luu, Thi Xuan Thi, Duus, Fritz, Spanget-Larsen, Jens

Journal:

Journal of Molecular Structure

Year:

2013

Language:

english

File:

PDF, 1.03 MB

english, 2013

37

Ultrasound accelerated sulfonylation of amines by p -acetamidobenzenesulfonyl chloride using Mg–Al hydrotalcite as an efficient green base catalyst

Truong, Binh Nhat, Le, Luong Huu, Chau, Duy-Khiem Nguyen, Duus, Fritz, Luu, Thi Xuan Thi

Journal:

Journal of Sulfur Chemistry

Year:

2016

Language:

english

File:

PDF, 2.72 MB

english, 2016

38

Intramolecular hydrogen bonding of the enol forms of β-ketoamides and β-ketothioamides. Deuterium isotope effects on 13C chemical shifts

Poul Erik Hansen, Fritz Duus, Simon Bolvig, Tadeusz S. Jagodzinski

Journal:

Journal of Molecular Structure

Year:

1996

Language:

english

File:

PDF, 849 KB

english, 1996

39

?-Thioxoketones. Part 6. Electronic absorption spectra of aromatic ?-thioxoketones. A study of enol?enethiol tautomerism

Carlsen, Lars, Duus, Fritz

Journal:

Journal of the Chemical Society Perkin Transactions 2

Year:

1980

Language:

english

File:

PDF, 808 KB

english, 1980

40

ChemInform Abstract: SYNTH. VON THIOPHENEN DURCH SPONTANE CYCLISIERUNG THIONIERTER GAMMA-DIKETONE

Journal:

Chemischer Informationsdienst

Year:

1973

File:

PDF, 125 KB

1973

41

A spectrochemometric approach to tautomerism and hydrogen-bonding in 3-acyltetronic acids

Jan Philipp Hofmann, Fritz Duus, Andrew D. Bond, Poul Erik Hansen

Journal:

Journal of Molecular Structure

Year:

2006

Language:

english

File:

PDF, 226 KB

english, 2006

42

13C and 1H NMR study of structure and structural dynamics of tautomeric 2-ethoxycarbonylthiolane-3-thiones

Journal:

Magnetic Resonance in Chemistry

Year:

1989

Language:

english

File:

PDF, 1.32 MB

english, 1989

43

Friedel–Crafts acylation using bismuth triflate in [BMI][PF6]

Phuong Hoang Tran, Fritz Duus, Thach Ngoc Le

Journal:

Tetrahedron Letters

Year:

2012

Language:

english

File:

PDF, 434 KB

english, 2012

44

Structural Dynamics of 4-Hydroxy-6-Mercaptothiopyran-2-Thiones

Langg[adot]rd, Morten, Kristensen, Jesper B., Duus, Fritz

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

1993

Language:

english

File:

PDF, 118 KB

english, 1993

45

Thioacetylacetone: Structural and Vibrational Assignments

Yevgen Posokhov, Alexander Gorski, Jens Spanget-Larsen, Fritz Duus, Poul Erik Hansen, Jacek Waluk

Journal:

Year:

2004

Language:

english

File:

PDF, 220 KB

english, 2004

46

Cytotoxic Geranylated Xanthones and O-Alkylated Derivatives of α-Mangostin

Ha, Ly Dieu, Hansen, Poul Erik, Vang, Ole, Duus, Fritz, Pham, Hung Dinh, Nguyen, Lien-Hoa Dieu

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

2009

Language:

english

File:

PDF, 138 KB

english, 2009

47

?-Thioxoketones. Part 9. A dynamic 1H nuclear magnetic resonance spectroscopic study of thioacetylacetone and related ?-thioxoketones. Direct observation of the enol and enethiol tautomeric constituents and their interconversion

Berg, Ulf, Sandstr�m, Jan, Carlsen, Lars, Duus, Fritz

Journal:

Journal of the Chemical Society Perkin Transactions 2

Year:

1983

Language:

english

File:

PDF, 604 KB

english, 1983

48

Fast and efficient green synthesis of thiosulfonate S -esters by microwave-supported permanganate oxidation of symmetrical disulfides

Luu, Thi Xuan Thi, Nguyen, Thao-Tran Thi, Le, Thach Ngoc, Spanget-Larsen, Jens, Duus, Fritz

Journal:

Journal of Sulfur Chemistry

Year:

2015

Language:

english

File:

PDF, 789 KB

english, 2015

49

Investigation of peel and leaf essential oils of Citrus clementina Hort. ex Tan. growing in the south of Vietnam

Thi Nguyen, Thao-Tran, Thi Tran, Thanh-Tram, Hua, Tra-My, Diep, The-Tai, Chau, Duy-Khiem Nguyen, Duus, Fritz, Le, Thach Ngoc

Journal:

Journal of Essential Oil Research

Year:

2015

Language:

english

File:

PDF, 790 KB

english, 2015

50

Ultrasound Assisted Synthesis of 5,9-Dimethylpentadecane and 5,9-Dimethylhexadecane – the Sex Pheromones of Leucoptera coffeella

Doan, Nhuan, Le, Thach, Nguyen, Hao, Hansen, Poul, Duus, Fritz

Journal:

Year:

2007

Language:

english

File:

PDF, 70 KB

english, 2007

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