Volume 34; Issue 23

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Tetrahedron Letters
Volume 34; Issue 23

Tetrahedron Letters

Volume 34; Issue 23

1

Graphical abstracts

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 621 KB

english, 1993

2

N-alkylation of pyridylalanine and pyridinecarboxylic acids and their use in synthesis of GnRH antagonists

Yongliang Zhang, Zhenping Tian, Maria Kowalczuk, Patrick Edwards, Roger W. Roeske

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 255 KB

english, 1993

3

A synthesis or indolizidines related to castanospermine and swainsonine.

Michael R. Jirousek, Adrian W-H. Cheung, Robert E. Babine, Philip M. Sass, Steven R. Schow, Michael M. Wick

Journal:

Tetrahedron Letters

Year:

1993

File:

PDF, 323 KB

1993

4

A biomimetic chemical synthesis of humulene from farnesol

E.J. Corey, Sylvain Daigneault, Brian R. Dixon

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 259 KB

english, 1993

5

Synthesis of bridged dicyclooctatetraenes and alkynylcyclooctatetraenes by palladium-catalyzed coupling reactions

David A. Siesel, Stuart W. Staley

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 210 KB

english, 1993

6

Synthesis of symmetrical diaryl 1,2-diketones from grignard reagents and 1,1′-Oxalylimidazole

Reginald H. Mitchell, Vivekanantan S. Iyer

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 217 KB

english, 1993

7

A revisitation of the clemmensen reduction of diosgenin. characterization of byproducts and their use in the preparation of (25R)-26-hydroxysterols.

Yuan Ni, Hong-Seok Kim, K. William, Wilson Alemka Kisic, George J. Schroepfer Jr.

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 320 KB

english, 1993

8

A direct synthesis of a bifunctional chelating agent for radiolabeling proteins

Martin W. Brechbiel, Thomas J. McMurry, Otto A. Gansow

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 250 KB

english, 1993

9

Effect of aggregation on stereochemistry and mechanism of asymmetric oxidation of the lithium enolate of methyl 3,3-dimethylbutanoate in the solid state and in solution

Wei Yen, R. Bakthavatchalam, Jin Xian-Ming, Christopher K. Murphy, Franklin A. Davis

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 296 KB

english, 1993

10

Alkali metal ion mediated cyclization of 4,4′-(3,6-dioxaocta-1,8-diyloxy)-bis(benzophenone)

Mark D. Ferguson, Jared A. Butcher Jr.

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 223 KB

english, 1993

11

Active transport of uridine through a liquid organic membrane mediated by phenylboronic acid and driven by a fluoride ion gradient

Marie-France Paugam, Bradley D. Smith

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 323 KB

english, 1993

12

Popolohuanone E, a topoisomerase-II inhibitor with selective lung tumor cytotoxicity from the Pohnpei sponge Dysidea sp.

John R. Carney, Paul J. Scheuer

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 227 KB

english, 1993

13

Hydrogenation of buckminsterfullerene C60 via Hydrozirconation: A new way to organofullerenes

Stephan Ballenweg, Rolf Gleiter, Wolfgang Krätschmer

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 240 KB

english, 1993

14

Bromation régiosélective d'itols non protégés

Aniss El Anzi, Mohammed Benazza, Catherine Fréchou, Gilles Demailly

Journal:

Tetrahedron Letters

Year:

1993

File:

PDF, 254 KB

1993

15

Addition reaction and deoxygenation of alcohols using isothiocyanates and triethylsilane-DTBP

Kozaburo Nishiyama, Makoto Oba, Masahiko Oshimi, Tunetoshi Sugawara, Ryuichi Ueno

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 232 KB

english, 1993

16

Untenone A, a new cyclopentenone from the Okinawan marine sponge Plakortis sp. corresponding to the dienophile in the biosynthesis of manzamenones

Masami Ishibashi, Shinji Takeuchi, Jun'ichi Kobayashi

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 141 KB

english, 1993

17

Revised structure of caespitenone isolated from the liverwort Porella caespitans var. setigera and Porella swartziana

Motoo Tori, Katsuyuki Nakashima, Masao Toyota, Yoshinori Asakawa

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 162 KB

english, 1993

18

Structure of secoswartzianins A and B isolated from the liverwort Porella swartziana

Motoo Tori, Katsuyuki Nakashima, Tomoko Takeda, Yoshinori Asakawa

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 163 KB

english, 1993

19

Scandium trifluoromethanesulfonate (Sc(OTf)3). A novel reusable catalyst in the Diels-Alder reaction

Shū Kobayashi, Iwao Hachiya, Mitsuharu Araki, Haruro Ishitani

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 237 KB

english, 1993

20

The M/P conformation distributions of 3-O-derivatives of the 1,5-benzothiazepin ring system of diltiazem. The unique effect of silicon.

Andrea Bozzoli, Emanuela Marotta, Silvano Piani, Goffredo Rosini

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 256 KB

english, 1993

21

A new synthesis of 3-ylidenephthalides via palladium-catalyzed cyclocarbonylation of 2-triflyloxyacetophenones

Pier Giuseppe Ciattini, Gaia Mastropietro, Enrico Morera, Giorgio Ortar

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 327 KB

english, 1993

22

Phase transfer catalysed synthesis of alicyclic tetraalkyl 1,1-bisphosphonates and trialkyl 1,1-phosphonocarboxylates.

Jane R. Hanrahan, David W. Hutchinson

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 130 KB

english, 1993

23

Electrocyclization of 3-azahexa-1,3,5-trienes: A convenient iminophosphorane-mediated preparation of 4-arylpyridines

Pedro Molina, Aurelia Pastor, María Jesús Vilaplana

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 274 KB

english, 1993

24

An unusual trimethylsilyltriflate catalyzed transformation of 6-[3-aryl-2-hydroxypropyl]-4,5-dihydro-3(2H-pyridazinones into 3-(1-naphthyl)propionic acid esters

Pier Giovanni Baraldi, Stefano Manfredini, Daniele Simoni, Glampiero Spalluto

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 240 KB

english, 1993

25

2-(chloromethyl)-3-tosylpropene as useful reagent for the general synthesis of functionalized 2-substituted 1,3-dienes. Application to the synthesis of (±)-ipsenol

Carmen Nájera, José Miguel Sansano

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 260 KB

english, 1993

26

Enantioselective synthesis of the hydroxy-lactone moiety of mevinic acids

Ray McCague, Horacio F. Olivo, Stanley M. Roberts

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 154 KB

english, 1993

27

Steric strain in syn[2.2]Metacylophane.

Shô Itô, Yoshisuke Nakasato, Yutaka Fujise, Hideaki Hioki, Miwa Nagaku, Yoshimasa Fukazawa

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 129 KB

english, 1993

28

Total synthesis of a new topoisomerase II inhibitor BE 10988

Hiroyuki Suda, Mitsuru Ohkubo, Kimihiro Matsunaga, Shosuke Yamamura, Waka Shimomoto, Naomi Kimura, Yoshikazu Shizuri

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 129 KB

english, 1993

29

Enantiopure enynyl sulfoxides via palladium-catalyzed coupling reactions

Robert S. Paley, Jennifer A. Lafontaine, Maria Paz Ventura

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 263 KB

english, 1993

30

Rearrangement of allylic cyclic sulfites to allylic sultones

Daniel E. Duffy, Fletcher H. Condit, Christopher A. Teleha, Chia-Lin J. Wang, Joseph C. Calabrese

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 198 KB

english, 1993

31

Reactions of α-epoxysilanes with organocopper reagents. A stereoselective route to alkenes

Denise C. Chauret, J.Michael Chong

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 273 KB

english, 1993

32

Base catalyzed degradations of rapamycin

Robert J. Steffan, Robert M. Kearney, David C. Hu, Amedeo A. Failli, Jerauld S. Skotnicki, Robert A. Schiksnis, James F. Mattes, Kelvin W. Chan, Craig E. Caufield

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 267 KB

english, 1993

33

A new synthesis of 3H-1,2-dithiole-3-thiones

Thomas J. Curphey, H.Howard Joyner

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 275 KB

english, 1993

34

Oxazoline-mediated synthesis of the Gossypium sesquiterpene lacinilene C-7 methyl ether and a structurally Related HIV-1 Reverse Transcriptase Inhibitor

Thomas G. Gant, A.I. Meyers

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 238 KB

english, 1993

35

Barbituric acid functionalized porphyrins and chlorins.

Byron C. Robinson, Alan R. Morgan

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 250 KB

english, 1993

36

A new approach to hydroazulenes via olefin metathesis

Heiko Junga, Siegfried Blechert

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 145 KB

english, 1993

37

Efficient solid phase assembly of peptides bearing contiguous highly hindered Aib residues via Fmoc Aib fluoride

Holger Wenschuh, Michael Beyermann, Eberhard Krause, Louis A. Carpino, Michael Bienert

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 209 KB

english, 1993

38

A stereoselective approach to the angucyclinone antibiotics: A total synthesis of (±)-rubiginone B1.

David S. Larsen, Michael D. O'Shea

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 226 KB

english, 1993

39

Benzene ring flipping in syn[2.2]metacyclophanes: effect of substituents

Shô Itô, Yoshisuke Nakasato, Hideaki Hioki, Miwa Nagaku, Yukiko Kan, Yoshimasa Fukazawa

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 254 KB

english, 1993

40

Selective O-acylation of aromatic hydroxylamines by 2-acylimidazolium and 2-acylbenzimidazolium salts

Pedro P.O. Santos, Cristina L. Trindade, Ana M. Lobo, Sundaresan Prabhakar

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 214 KB

english, 1993

41

Synthesis of perfluoroalkylpyrroles by homolytic substitution with perfluoroalkyl radicals

Enrico Baciocchi, Ester Muraglia

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 112 KB

english, 1993

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