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1

Constituents of commercial Labdanum oil

Peter Weyerstahl, Helga Marschall, Marlies Weirauch, Katrin Thefeld, Horst Surburg

Journal:

Flavour and Fragrance Journal

Year:

1998

Language:

english

File:

PDF, 402 KB

english, 1998

2

Terpenes and Terpene Derivatives, XXXII. New Cadinene and Bisabolene Derivatives from the Essential Oil of Pulicaria gnaphalodes

Peter Weyerstahl, Hans-Christian Wahlburg, Helga Marschall, Abdolhossein Rustaiyan

Journal:

European Journal of Organic Chemistry

Year:

1993

Language:

english

File:

PDF, 587 KB

english, 1993

3

Structure–odour correlation. Part XVIII.1 Partial structures of patchoulol with bicyclo[2.2.2]octane skeleton

Peter Weyerstahl, Christian Gansau, Helga Marschall

Journal:

Flavour and Fragrance Journal

Year:

1993

Language:

english

File:

PDF, 627 KB

english, 1993

4

Structure-odor correlation, XXI. Olfactory properties and convenient synthesis of furans and thiophenes related to rose furan and perillene and their isomers

Peter Weyerstahl, Anja Schenk, Helga Marschall

Journal:

European Journal of Organic Chemistry

Year:

1995

Language:

english

File:

PDF, 559 KB

english, 1995

5

Constituents of the essential oil from the rhizomes of Hedychium gardnerianum Roscoe

Peter Weyerstahl, Helga Marschall, Katrin Thefeld, Gyan C. Subba

Journal:

Flavour and Fragrance Journal

Year:

1998

Language:

english

File:

PDF, 212 KB

english, 1998

6

Constituents of the essential oil of Pulicaria gnaphalodes (Vent.) Boiss. from Iran

Peter Weyerstahl, Helga Marschall, Hans-Christian Wahlburg, Christian Christiansen, Abdolhossein Rustaiyan, Fatemeh Mirdjalili

Journal:

Flavour and Fragrance Journal

Year:

1999

Language:

english

File:

PDF, 186 KB

english, 1999

7

Constituents of the acidic part of commercial Brazilian lantana oil

Peter Weyerstahl, Helga Marschall, Christian Christiansen

Journal:

Flavour and Fragrance Journal

Year:

2001

Language:

english

File:

PDF, 143 KB

english, 2001

8

Essential oil of curcuma longa l. leaves

Babajide O. Oguntimein, Peter Weyerstahl, Helga Marschall-Weyerstahl

Journal:

Flavour and Fragrance Journal

Year:

1990

Language:

english

File:

PDF, 139 KB

english, 1990

9

Constituents of the Essential Oil of Solidago canadensis (“Goldenrod”) from Poland - A Correction

Weyerstahl, Peter, Marschall, Helga, Christiansen, Christian, Kalemba, Danuta, Góra, Józef

Journal:

Year:

1993

Language:

english

File:

PDF, 154 KB

english, 1993

10

Cameroonane, Prenopsane and Nopsane, Three New Tricyclic Sesquiterpene Skeletons

Peter Weyerstahl, Helga Marschall, Ingo Seelmann, Jasmin Jakupovic

Journal:

European Journal of Organic Chemistry

Year:

1998

Language:

english

File:

PDF, 645 KB

english, 1998

11

Synthesis of rac-(E)-Opposita-4(15),7(11)-dien-12-al

Peter Weyerstahl, Helga Marschall, Peter Degenkolb, Philippine Lebada

Journal:

European Journal of Organic Chemistry

Year:

1999

Language:

english

File:

PDF, 219 KB

english, 1999

12

Constituents of Brazilian Vassoura oil

Peter Weyerstahl, Christian Christiansen, Helga Marschall

Journal:

Flavour and Fragrance Journal

Year:

1996

Language:

english

File:

PDF, 489 KB

english, 1996

13

Constituents of the Brazilian Cangerana Oil

Peter Weyerstahl, Sabina Schneider, Helga Marschall

Journal:

Flavour and Fragrance Journal

Year:

1996

Language:

english

File:

PDF, 685 KB

english, 1996

14

Constituents of the Essential Oil of Achillea eriophora DC.

Peter Weyerstahl, Helga Marschall, Ingo Seelmann, Abdolhossein Rustaiyan

Journal:

Flavour and Fragrance Journal

Year:

1997

Language:

english

File:

PDF, 190 KB

english, 1997

15

The sesquiterpene fraction of the essential oil of Artemisia laciniata Willd.

Peter Weyerstahl, Helga Marschall, Martin Schröder, Hans-Christian Wahlburg, Vijay K. Kaul

Journal:

Flavour and Fragrance Journal

Year:

1997

Language:

english

File:

PDF, 204 KB

english, 1997

16

Constituents of the flower essential oil of Ageratina adenophora (Spreng.) K. et R. from India

Peter Weyerstahl, Helga Marschall, Ingo Seelmann, Vijay K. Kaul

Journal:

Flavour and Fragrance Journal

Year:

1997

Language:

english

File:

PDF, 208 KB

english, 1997

17

Constituents of Artemisia roxburghiana Besser essential oil

Carlo Bicchi, Patrizia Rubiolo, Helga Marschall, Peter Weyerstahl, Raymond Laurent

Journal:

Flavour and Fragrance Journal

Year:

1998

Language:

english

File:

PDF, 168 KB

english, 1998

18

Constituents of commercial Brazilian Cabore oil

Peter Weyerstahl, Helga Marschall, Dietmar Wolf

Journal:

Flavour and Fragrance Journal

Year:

1998

Language:

english

File:

PDF, 92 KB

english, 1998

19

Constituents of commercial Brazilian lantana oil

Peter Weyerstahl, Helga Marschall, Alexander Eckhardt, Christian Christiansen

Journal:

Flavour and Fragrance Journal

Year:

1999

Language:

english

File:

PDF, 245 KB

english, 1999

20

Constituents of the essential oil of Tanacetum (syn. Chrysanthemum) fruticulosum Ledeb. from Iran

Peter Weyerstahl, Helga Marschall, Katrin Thefeld, Abdolhossein Rustaiyan

Journal:

Flavour and Fragrance Journal

Year:

1999

Language:

english

File:

PDF, 155 KB

english, 1999

21

Constituents of the essential oil from the fruits of Zanthoxylum rhetsoides Drake from Vietnam and from the aerial parts of Zanthoxylum alatum Roxb. from India

Peter Weyerstahl, Helga Marschall, Ute Splittgerber, Phan Tong Son, Phan Minh Giang, V. K. Kaul

Journal:

Flavour and Fragrance Journal

Year:

1999

Language:

english

File:

PDF, 111 KB

english, 1999

22

Constituents of the flower essential oil of Aglaia odorata Lour. from Vietnam

Peter Weyerstahl, Helga Marschall, Phan Tong Son, Phan Minh Giang

Journal:

Flavour and Fragrance Journal

Year:

1999

Language:

english

File:

PDF, 125 KB

english, 1999

23

Constituents of Vietnamese pemou oil—a reinvestigation

Peter Weyerstahl, Helga Marschall, Tong Son Phan, Mhin Giang Phan

Journal:

Flavour and Fragrance Journal

Year:

1999

Language:

english

File:

PDF, 90 KB

english, 1999

24

1,7-Cyclogermacra-1(10),4-dien-15-al, a sesquiterpene with a novel skeleton, and other sesquiterpenes from Haitian vetiver oil

Peter Weyerstahl, Helga Marschall, Ute Splittgerber, Dietmar Wolf

Journal:

Flavour and Fragrance Journal

Year:

2000

Language:

english

File:

PDF, 388 KB

english, 2000

25

Analysis of the polar fraction of Haitian vetiver oil

Peter Weyerstahl, Helga Marschall, Ute Splittgerber, Dietmar Wolf

Journal:

Flavour and Fragrance Journal

Year:

2000

Language:

english

File:

PDF, 383 KB

english, 2000

26

Constituents of Haitian vetiver oil

Peter Weyerstahl, Helga Marschall, Ute Splittgerber, Dietmar Wolf, Horst Surburg

Journal:

Flavour and Fragrance Journal

Year:

2000

Language:

english

File:

PDF, 236 KB

english, 2000

27

Constituents of the essential oil of Solidago gigantea Ait. (giant goldenrod)

Danuta Kalemba, Helga Marschall, Pascale Bradesi

Journal:

Flavour and Fragrance Journal

Year:

2001

Language:

english

File:

PDF, 109 KB

english, 2001

28

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektro-negativen Substituenten, IV. Hepten-(6)-säuren und Bicyclo[3.1.1]- bzw. -[3.2.0]heptanone-(6)

Friedrich Nerdel, Dieter Frank, Helga Marschall

Journal:

European Journal of Inorganic Chemistry

Year:

1967

Language:

german

File:

PDF, 800 KB

german, 1967

29

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen Substituenten, XIX. Nucleophile Reaktionen mit β-Tosyloxy-aldehyden

Klaus Lucas, Peter Weyerstahl, Helga Marschall, Friedrich Nerdel

Journal:

European Journal of Inorganic Chemistry

Year:

1971

File:

PDF, 558 KB

1971

30

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen Substituenten, XX. „ γ-Fragmentierung” von 5-Methyl--1[p-toluosulfonyloxy-methyl]-bicyclo[3.2.0]heptanon-(6)

Helga Marschall

Journal:

European Journal of Inorganic Chemistry

Year:

1972

File:

PDF, 377 KB

1972

31

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen Substituenten, XXI Cyan-cyclobutane aus Tosyloxy-olefinen

Klaus Zabel, Peter Weyerstahl, Helga Marschall, Friedrich Nerdel†

Journal:

European Journal of Inorganic Chemistry

Year:

1972

File:

PDF, 417 KB

1972

32

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen Substituenten, XXII. cis- und trans-4.4.8.8-Tetramethyl-2.6-dioxa-bicyclo[3.3.0]octan aus 1.6-Bis-p-toluolsulfonyloxy-2.2.5.5-tetramethyl-hexandion-(3.4)

Hans-Rudolf Krüger, Peter Weyerstahl, Helga Marschall, Friedrich Nerdel

Journal:

European Journal of Inorganic Chemistry

Year:

1972

File:

PDF, 671 KB

1972

33

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen Substituenten, XXIII. cis- und trans-4.4.8.8-Tetraalkyl-2.6-dioxa-bicyclo[3.3.0]octane aus 1.6-Bis-p-toluolsulfonyloxy-2.2.5 5-tetraalkyl-hexandionen-(3.4)

Hans-Rudolf Krüger, Helga Marschall, Peter Weyerstahl, Friedrich Nerdel

Journal:

European Journal of Inorganic Chemistry

Year:

1973

File:

PDF, 801 KB

1973

34

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen Substituenten. XXIV. 4,7-Dimethyl-2,9-dioxatricyclo [5.3.0.04,10] decane aus 3,6-Bis(jodmethyl)-und 3,6-Bis(p-tolylsulfonyloxymethyl)3,6-dimethyl-1,2-cyclohexandion

Hans-Rudolf Krüger, Helga Marschall, Peter Weyerstahl, Friedrich Nerdel

Journal:

European Journal of Inorganic Chemistry

Year:

1973

File:

PDF, 475 KB

1973

35

Fragmentierungsreaktionen and Carbonylverbindungen mit β-ständigen elektronegativen Substituenten, XXV. 5,5-Dimethyl-6-tosyloxy-3-hexen-2-on, ein vinyloges β-Tosyloxyketon

Helga Marschall, Karl Tantau, Peter Weyerstahl

Journal:

European Journal of Inorganic Chemistry

Year:

1974

Language:

german

File:

PDF, 264 KB

german, 1974

36

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen substituenten, XXVI. Reaktion von 1-(Tosyloxymethyl)- und 1-(Trifluormethylsulfonyl-oxymethyl)bicyclo[3.3.1]nonan-9-on mit Nucleophilen

Helga Marschall, Friedrich Vogel

Journal:

European Journal of Inorganic Chemistry

Year:

1974

File:

PDF, 498 KB

1974

37

Synthese von α-Methylen-δ-lactonen

Helga Marschall, Friedrich Vogel, Peter Weyerstahl

Journal:

European Journal of Inorganic Chemistry

Year:

1974

File:

PDF, 418 KB

1974

38

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen Substituenten, XXVII. Bicyclo[3.1.1]- und -[3.2.0]hept-2-enone aus 2-Tosyloxymethyl-3-cyclohexen-1-onen

Klaus-Dieter Klinkmüller, Helga Marschall, Peter Weyerstahl

Journal:

European Journal of Inorganic Chemistry

Year:

1975

Language:

german

File:

PDF, 587 KB

german, 1975

39

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen Substituenten, XXVIII. Solvolyse von 2-Methyl-2-tosyloxymethyl-1-tetralon

Klaus-Dieter Klinkmüller, Helga Marschall, Peter Weyerstahl

Journal:

European Journal of Inorganic Chemistry

Year:

1975

Language:

german

File:

PDF, 231 KB

german, 1975

40

Synthese von Bis-epoxiden aus Dicarbonylverbindungen und Methylenbromid/Butyllithium

Manfred Becker, Helga Marschall, Peter Weyerstahl

Journal:

European Journal of Inorganic Chemistry

Year:

1975

File:

PDF, 285 KB

1975

41

Darstellung von α-Methylen-γ-lactonen mit 9-Oxabicyclo[6.3.0]undecan-Skelett

Norbert Bensel, Helga Marschall, Peter Weyerstahl

Journal:

European Journal of Inorganic Chemistry

Year:

1975

Language:

german

File:

PDF, 348 KB

german, 1975

42

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen Substituenten, XXIX. 2,2,5,5-Tetrakis(tosyloxymethyl)cyclopentanon und 2,2,6,6-Tetrakis(tosyloxymethyl)cyclohexanon

Klaus Gerner, Helga Marschall, Peter Weyerstahl

Journal:

European Journal of Inorganic Chemistry

Year:

1975

File:

PDF, 674 KB

1975

43

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen Substituenten, XXX. Solvolyse von 2,2-Bis(tosyloxymethyl)cycloalkanonen

Hero Gerdes, Helga Marschall, Peter Weyerstahl

Journal:

European Journal of Inorganic Chemistry

Year:

1975

File:

PDF, 667 KB

1975

44

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen Substituenten, XXXI. NaBH4-Reduktion von 2,5-Dipropyl- und 2,5-Dibenzyl-2,5-bis(tosyloxymethyl)-3,4-hexandion

Hans-Rudolf Krüger, Helga Marschall, Volker Sander, Peter Weyerstahl

Journal:

European Journal of Inorganic Chemistry

Year:

1975

File:

PDF, 613 KB

1975

45

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen substituenten, XXXII: Reaktion von 2,2-Dialkyl-1-cyclohexyl-3-tosyloxy-1-propanon mit Nucleophilen

Helga Marschall, Wolf B. Mühlenkamp

Journal:

European Journal of Inorganic Chemistry

Year:

1976

File:

PDF, 417 KB

1976

46

Zur Bildung, Trennung und Zuordnung diastereomerer CCl2-Bis-Addukte an Diolefine

Wolfgang Kuhn, Helga Marschall, Peter Weyerstahl

Journal:

European Journal of Inorganic Chemistry

Year:

1977

Language:

german

File:

PDF, 634 KB

german, 1977

47

γ-Lactone aus α, β-ungesättigten Ketonen durch PO-Olefinierung

Norbert Bensel, Jürgen Höhn, Helga Marschall, Peter Weyerstahl

Journal:

European Journal of Inorganic Chemistry

Year:

1979

File:

PDF, 1.05 MB

1979

48

Fragmentierungsreaktionen an Carbonylverbindungen mit β-ständigen elektronegativen Substituenten, XXXIII. 3-Oxatricyclo[5.3.1.0]undec-4-en, ein stark gespannter Vierring-Enolether

Hero Gerdes, Shailaja Javeri, Helga Marschall

Journal:

European Journal of Inorganic Chemistry

Year:

1980

File:

PDF, 738 KB

1980

49

Synthese chiraler Azobenzole und Untersuchung der in nematischen Flüssigkristallen durch sie induzierten cholesterischen Phasen

Gerd Heppke, Helga Marschall, Peter Nürnberg, Feodor Oestreicher, Günter Scherowsky

Journal:

European Journal of Inorganic Chemistry

Year:

1981

Language:

german

File:

PDF, 933 KB

german, 1981

50

Dichlorocyclopropanation, epoxidation, and subsequent reactions of isotetralin derivatives

Md. Abul Hashem, Helga Marschall-Weyerstahl, Peter Weyerstahl

Journal:

European Journal of Inorganic Chemistry

Year:

1986

Language:

english

File:

PDF, 492 KB

english, 1986