Volume 39; Issue 5-6

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Tetrahedron Letters
Volume 39; Issue 5-6

Tetrahedron Letters

Volume 39; Issue 5-6

1

Intramolecular oxygen radical additions to α,β-unsaturated esters. Diastereoselective tandem cyclofunctionalization and hydrogen transfer reactions

Yvan Guindon, Réal C. Denis

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 320 KB

english, 1998

2

Studies on asymmetric synthesis of hyperzine A 1. Palladium-catalyzed asymmetric bicycloannulation of 5,6,7,8-tetrahydro-2-methoxy-6-oxo-5-quinolinecarboxylic esters

Xu-Chang He, Bin Wang, Donglu Bai

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 234 KB

english, 1998

3

Effects of added dimethylsulfoxide on pKα values of uncharged organic acids and pH values of aqueous buffers

Pasupati Mukerjee, J.Donald Ostrow

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 239 KB

english, 1998

4

Heliespirone A. The first member of a novel family of bioactive sesquiterpenes

Francisco A. Macías, Rosa.M. Varela, Ascensión Torres, JoséMa G. Molinillo

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 205 KB

english, 1998

5

A mild and stereoselective synthesis of β-phosphonylacrylates

Kamyar Afarinkia, Marc Evans, Jocelyn C.H. Graham, Gorka Jimenez-Bueno

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 169 KB

english, 1998

6

Practical synthesis of unsymmetrical polyamine amides

Ian S. Blagbrough, Andrew J. Geall

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 233 KB

english, 1998

7

Homologation of polyamines in the synthesis of lipo-spermine conjugates and related lipoplexes

Andrew J. Geall, Ian S. Blagbrough

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 225 KB

english, 1998

8

Unexpected rearrangement during biomimetic entry toward a taxane skeleton

Mugio Nishizawa, Hiroshi Imagawa, Ikumi Hyodo, Miho Takeji, Eiko Morikuni, Kohsuke Asoh, Hidetoshi Yamada

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 255 KB

english, 1998

9

La(OTf)3-catalyzed 7-endo and 8-endo selective cyclizations of hydroxy epoxides

Kenshu Fujiwara, Hirohumi Mishima, Arika Amano, Tetsuo Tokiwano, Akio Murai

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 268 KB

english, 1998

10

Asymmetric acylation of meso-diols with benzoyl halide in the presence of a chiral diamine

Takeshi Oriyama, Keisuke Imai, Takeshi Hosoya, Tomohumi Sano

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 222 KB

english, 1998

11

Total synthesis of a glyoxalase I inhibitor and its precursor, (−)-KD16-U1

Kuniaki Tatsuta, Shohei Yasuda, Nobuyuki Araki, Masaaki Takahashi, Yuko Kamiya

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 143 KB

english, 1998

12

Facial selectivities of benzofluorenes bearing a carbonyl, an olefin, or a diene group in spiro geometry. π Spiro substituent effects

Motonori Tsuji, Tomohiko Ohwada, Koichi Shudo

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 264 KB

english, 1998

13

Telluro-directed regiospecific and highly stereoselective reaction of ethyl 5-telluro-(2E,4Z)-pentadienoate with organocopper reagents

Yao-Zeng Huang, Xue-Sheng Mo, Lei Wang

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 228 KB

english, 1998

14

Thioketones as key intermediates in the reduction of ketones to thiols by HS− in natural environments

Patrick Schneckenburger, Pierre Adam, Pierre Albrecht

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 253 KB

english, 1998

15

Attempted preparation of trisphenol-II

Ewa Nowakowska, Zdzisław Daszkiewicz, Janusz B. Kyzioł

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 200 KB

english, 1998

16

Synthesis of thiazolo[3,2-a]pyridines from enaminoesters by tandem conjugate addition-cyclization

Esther Caballero, Pilar Puebla, Manuel Medarde, Zoila Honores, Pablo Sastre, Jose Luis López, Arturo San Feliciano

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 250 KB

english, 1998

17

Absolute stereochemistry of isosaraine-1 and isosaraine-2

Yuewei Guo, Enrico Trivellone, Gennaro Scognamiglio, Guido Cimino

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 227 KB

english, 1998

18

New fragmentation and rearrangement reactions of the azetidine ring promoted by AlEt2Cl

Benito Alcaide, Nati R Salgado, Miguel A Sierra

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 242 KB

english, 1998

19

Stereoselective Stille coupling reactions of 1,1-bis(trialkylstannyl)ethenes

Peter Quayle, Jingyang Wang, Jie Xu, Christopher J. Urch

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 230 KB

english, 1998

20

On the cine substitution of 1,1-bis(tri-n-butylstannyl)ethenes in an intramolecular Stille reaction

Peter Quayle, Jingyang Wang, Jie Xu, Christopher J. Urch

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 220 KB

english, 1998

21

Radical-chain desulfurisation of α-(alkylthiomethyl)acrylates with triphenylphosphine: a new route to α-alkylacrylates

Hai-Shan Dang, Kyoung-Mahn Kim, Brian P. Roberts

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 184 KB

english, 1998

22

Revised structure of isoschizogamine

Josef Hájíček, Jan Taimr, Miloš Buděšínský

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 173 KB

english, 1998

23

Thiophenol promoted radical cyclisation of hydrazones and oxime ethers

Laurent El Kaim, Ariane Gacon, Aymeric Perroux

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 173 KB

english, 1998

24

A one pot synthesis of (E)-4-alkylidene-2-cyclohexen-1-ones

Ahlem Chamakh, Hassen Amri

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 210 KB

english, 1998

25

Synthesis of 1,1,1-ethanetriacetonitrile1, precursor of 6-Substituted-4-methyl-2-aminopyridines

Stéphane Mathé, André Rassat

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 96 KB

english, 1998

26

Access to enantiopure ribosyl-diazepanone core of liposidomycins

Yves Le Merrer, Christine Gravier-Pelletier, Mohamed Gerrouache, Jean-Claude Depezay

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 229 KB

english, 1998

27

Photolysis of chloride precursors as a method to prepare and characterize the triplet state of fluorenyl-substituted m-xylylene diradicals

Joseph J. Gajewski, Gitendra C. Paul

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 208 KB

english, 1998

28

BoraneBu2BOTf: A mild reagent for the regioselective reductive ring opening of benzylidene acetals in carbohydrates

Lu Jiang, Tak-Hang Chan

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 216 KB

english, 1998

29

Reductive cleavage of N,N,N′,N′-tetramethylphosphorodiamidates with lithium naphthalenide. A convenient procedure for deoxygenation of alcohols

Hsing-Jang Liu, Xiao Shang

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 169 KB

english, 1998

30

Keywords List

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 316 KB

english, 1998

31

Contributors to this issue

Journal:

Tetrahedron Letters

Year:

1998

File:

PDF, 54 KB

1998

32

Graphical abstracts

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 573 KB

english, 1998

33

Chemoselective, metal-mediated oxidation of (dienol)iron complexes with N-methylmorpholine N-oxide

Bireshwar Dasgupta, William A. Donaldson

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 250 KB

english, 1998

34

An exceptionally reactive phosphotriester

Robert A. Moss, Susmita Bose, Kaliappa G. Ragunathan, Nilu Jayasuriya, Thomas J. Emge

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 234 KB

english, 1998

35

Cherinonaine, a novel dimeric amide from the stems of Annona cherimola

Chung-Yi Chen, Fang-Rong Chang, Yang-Chang Wu

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 156 KB

english, 1998

36

First total synthesis of 25(R)-ruscogenin-1-yl β-D-xylopyranosyl-(1→3)-[β-D-glucopyranosyl-(1→2)]-β-D-fucopyranoside, an ophiopogonis saponin from the tuber of Liriope muscari (Decne.)

Meizheng Liu, Biao Yu, Yongzheng Hui

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 211 KB

english, 1998

37

Two efficient methods for the conversion of camptothecin to mappicine ketone, an antiviral lead compound

Biswanath Das, P. Madhusudhan, A. Kashinatham

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 129 KB

english, 1998

38

Cascade and sequential palladium catalysed cyclisation-azide capture-1,3-dipolar cycloaddition route to complex triazoles

Mihaly Gardiner, Ronald Grigg, Visuvanathar Sridharan, Nigel Vicker

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 147 KB

english, 1998

39

Natural Kaolinitic clay catalyzed conversion of nitriles to 2-oxazolines

G.K. Jnaneshwara, V.H. Deshpande, M. Lalithambika, T. Ravindranathan, A.V. Bedekar

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 209 KB

english, 1998

40

Lewis acid promoted highly diastereoselective desymmetric intramolecular cyclization of allylstannane with a diketone

Takashi Shimada, Yoshinori Yamamoto

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 211 KB

english, 1998

41

Cycloadditions of aromatic imines to enantiomerically pure stabilized azomethine ylids: Construction of threo (2S, 3R)-3-aryl-2,3-diamino acids

David Alker, Laurence M Harwood, C.Eleri Williams

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 245 KB

english, 1998

42

Methyl 3,3-bis(trialkylstannyl)acrylates: An improved preparative procedure

Peter Quayle, Jingyang Wang, Jie Xu, Christopher J. Urch

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 123 KB

english, 1998

43

1,1-Bis(trialkylstannyl)ethenes: Further investigations into their reactivity

Peter Quayle, Jingyang Wang, Jie Xu, Christopher J. Urch

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 256 KB

english, 1998

44

Highly efficient Diels-Alder cycloadditions of 2-pyridones with bulky N-sulfonyl substituent

Kamyar Afarinkia, Farzana Mahmood

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 286 KB

english, 1998

45

Ring-opening of chiral N-(3,4-dihydro-4-oxoquinazolin-3-yl)-substituted aziridines (Q∗-substituted aziridines): access to Q∗-free chirons

Robert S Atkinson, Andrew P Ayscough, William T Gattrell, Tony M Raynham

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 236 KB

english, 1998

46

A hydrogen-bonded model for the syn epoxidation of cyclic allylic ethers under Payne conditions

Christian Bachmann, Jean-Pierre Gesson, Brigitte Renoux, Isabelle Tranoy

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 192 KB

english, 1998

47

o-Nitrobenzyl as a photocleavable nitrogen protecting group for indoles, benzimidazole, and 6-chlorouracil

Troy Voelker, Tim Ewell, Jean Joo, Eric D. Edstrom

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 212 KB

english, 1998

48

Regioselective reaction of allylbenzotriazoles with aldehydes and ketones in the presence of lithium

Alan R. Katritzky, Clara N. Fali, Ming Qi

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 195 KB

english, 1998

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