Volume 31; Issue 3

Main
Tetrahedron Letters
Volume 31; Issue 3

Tetrahedron Letters

Volume 31; Issue 3

1

Chemistry of aldolate dianions. β-Silyloxy silyl enol ethers as bifunctional nucleophilic equivalents for oxygen heterocycle synthesis

Van A. Martin, Françoise Perron, Kim F. Albizati

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 210 KB

english, 1990

2

Conjugate hydroboration-reduction and organolithium additions to acylketene acetals. Synthesis of monoprotected β-dicarbonyls

Clark N. Eid Jr., Joseph P. Konopelski

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 149 KB

english, 1990

3

Tandem geminal dialkylation: Nucleophilic double addition of organocopper reagents to 3-ethynyl-2-cycloalkenones

Sang-Ho Lee, Martin Hulce

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 215 KB

english, 1990

4

Conjugate addition of lithium diorganocuprate reagents to the enol tosylate of a 1,2-diketone

Jeffrey A. Charonnat, Anna L. Mitchell, Bartholomew P. Keogh

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 207 KB

english, 1990

5

Synthesis of 6-substituted 2′-deoxyguanosine derivatives using trifluoroacetic anhydride in pyridine

Fathi Reza, Goswami Bhaswati, Kung Pei-Pei, Barbara L. Gaffney, Roger A. Jones

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 291 KB

english, 1990

6

An unusual synthesis of malonates

Derek H.R. Barton, Pascal Langlois, Takashi Okano, Nubar Ozbalik

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 143 KB

english, 1990

7

Dimethyldioxirane epoxidation of α,β-unsaturated ketones, acids and esters.

Waldemar Adam, Lazaros Hadjiarapoglou, Bernd Nestler

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 233 KB

english, 1990

8

Building blocks for oligonucleotide analogs with dimethylene-sulfide, -sulfoxide, and -sulfone groups replacing phosphodiester linkages

K.Christian Schneider, Steven A. Benner

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 333 KB

english, 1990

9

Stereochemical effects of trimethylsilyl chloride (TMSCl) on the conjugate addition of organocopper reagents

A. Alexakis, R. Sedrani, P. Mangeney

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 251 KB

english, 1990

10

Preparation of (E)-α,β-unsaturated aromatic aldehydes by high stereoselective olefinformylation.

Marcel Gaudemar, Moncef Bellassoued

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 189 KB

english, 1990

11

On the oxidation of 3-ethylpentane under GifIV and Gif-orsay conditions

Derek H.R. Barton, Dario Doller, Nubar Ozbalik, Gilbert Balavoine, Aurore Gref, Jean Boivin

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 189 KB

english, 1990

12

Synthesis with manganic salts; part IV: Free radical trost allylation

P Breuilles, D Uguen

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 257 KB

english, 1990

13

Hericenone A and B as cytotoxic principles from the mushroom hericium erinaceum

Hirokazu Kawagishi, Motoharu Ando, Takashi Mizuno

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 218 KB

english, 1990

14

Organoaluminum-promoted rearrangement of allyl phenyl ethers

Keiji Maruoka, Junko Sato, Hiroshi Banno, Hisashi Yamamoto

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 206 KB

english, 1990

15

A general and efficient strategy for determining the stereostructure of 1,3-polyol

Tadashi Nakata, Noriaki Hata, Takeshi Oishi

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 250 KB

english, 1990

16

A stereocontrolled total synthesis of a ganglio-ganglioside GM1b, IV3NeuAcαGgOse4Cer

Mamoru Sugimoto, Kazushige Fujikura, Shigeki Nunomura, Toshio Horisaki, Yukishige Ito, Tomoya Ogawa

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 256 KB

english, 1990

17

4-Nitrobenzyl group for protection of hydroxyl functions

Koichi Kukase, Hideo Tanaka, Sigeru Toriib, Shoichi Kusumoto

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 322 KB

english, 1990

18

Woodfruticosin, an inhibitor of DNA topoisomerase II from woodfordia fruticosa kurz

Shigetoshi Kadota, Yasushi Takamori, Tohru Kikuchi, Akiko Motegi, Hisao Ekimotob

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 352 KB

english, 1990

19

The use of crown ethers in peptide chemistry: Part 3 synthesis of an enkephalin derivative using 18-crown-6 as a non-covalent amino protecting group

Carolyn B. Hyde, Paolo Mascagni

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 184 KB

english, 1990

20

Spontaneous dihydroxylation of α-oxo enol ethers by air

Károly Kanai, István Tömösközi

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 105 KB

english, 1990

21

Some comments on an allegedly “facile synthesis of nojirimycin”

George W.J Fleet, Nigel G Ramsden, Neil M Carpenter, Sigthor Peturssona, Robin T Aplin

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 291 KB

english, 1990

22

Synthesis of deoxynojirimycin and of nojirimycin δ-lactam

George W.J. Fleet, Neil M. Carpenter, Sigthor Petursson, Nigel G. Ramsdena

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 212 KB

english, 1990

23

Highly selective oxidative cross-coupling of substituted 2-naphthols: A convenient approach to unsymmetrical 1,1′-binaphthalene-2,2′-diols

Martin Hovorka, Jana Günterová, Jir̆í Závada

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 236 KB

english, 1990

24

Enolic ortho esters. V.1 Regiospecific generation of diketo ester monoacetals by reaction of an enolic ortho ester with ketene silyl acetals

D.J. Collins, M. Dosen, A.G. Jhingran

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 125 KB

english, 1990

25

A general procedure for the preparation of 11β-hydroxy gibberellins: Synthesis of the methyl esters of GA35 and 11β-hydroxy-GA7

Lewis N. Mander, Graham L. Patrick

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 254 KB

english, 1990

26

A new protected acyl protecting group for exocyclic amino functions of nucleobases

C.M. Dreef-Tromp, P. Hoogerhout, G.A. van der Marel, J.H. van Boom

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 276 KB

english, 1990

27

Graphical abstracts

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 553 KB

english, 1990

28

A mild four-carbon homologation of aldehydes to E,E-dienamines

Andrew S. Kende, Robert J. DeVita

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 208 KB

english, 1990

29

Organoaluminum promoted conversion of aldehydes to methyl ketones

Michael B. Power, Andrew R. Barron

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 111 KB

english, 1990

30

New catalysts for the glycosyl transfer with O-glycosyl trichloroacetimidates

Richard R. Schmidt, Helmut Gaden, Harald Jatzke

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 267 KB

english, 1990

31

Carboxamidomethyl ester as useful handle in polystyrene-based peptide synthesis: Cleavage of peptide with mercaptide

Mohammed Saleh Shekhani, Gerald Grübler, Hartmut Echner, Wolfgang Voelter

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 191 KB

english, 1990

32

New functional wittig reagent for the formylolefination of aldehydes and ketones

Henri-Jean Cristau, Marie-Bénédicte Gasc

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 164 KB

english, 1990

33

Synthhesis of new 5 and 6-exomethylenic arachidonic acid analogs.

A Stoller, C Mioskowski, C Sepulchre, F Bellamy

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 232 KB

english, 1990

34

Reduction of acetylenes to (Z)-olefins by means of low-valent niobium or tantalum.

Yasutaka Kataoka, Kazuhiko Takai, Koichiro Oshima, Kiitiro Utimoto

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 270 KB

english, 1990

35

Preparation of 1-naphthols from acetylenes and o-phthalaldehyde using low-valent tantalum and niobium.

Yasutaka Kataoka, Jiro Miyai, Makoto Tezuka, Kazuhiko Takai, Koichiro Oshima, Kiitiro Utimoto

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 247 KB

english, 1990

36

Unactivated 2.Aza.1,3-dienes: Halogenation and face selectivity in diels-alder reactions

José Barluenga, Francisco J. González, Santos Fustero

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 126 KB

english, 1990

37

Novel 1-substituted -2, 3-dihydro-1H-isoindoles: Synthesis via Meyers' methodology

Lee J Beeley, Caroline J.M Bockell

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 167 KB

english, 1990

38

Chemistry of insect antifeedants from azadirachta indica (part 6): Synthesis of an optically pure acetal intermediate for potential use in the synthesis of azadirachtin and novel antifeedants.

James C Anderson, Steven V Ley

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 168 KB

english, 1990