Volume 45; Issue 5

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Tetrahedron
Volume 45; Issue 5

Tetrahedron

Volume 45; Issue 5

1

Some novel aspects of regioselectivity in 1,3 dipolar cycloadditions of 4H-1-benzopyran-4-thione: J.S. Sandhu, A.K. Baruah and D. Prajapati Tetrahedron, vol. 44, no. 19, pp. 6137 to 6142, 1988

Journal:

Year:

1989

File:

PDF, 33 KB

1989

2

Counterattack reagents in organic reactions and in syntheses

Jih Ru Hwu, Bryant A. Gilbert

Journal:

Year:

1989

Language:

english

File:

PDF, 1.78 MB

english, 1989

3

Biosynthetic studies of marine lipids. 22: Calysterol: Some aspects of sterol cyclopropene biosynthesis in the sponge calyx nicaeensis

George A. Doss, Christopher J. Silva, Carl Djerassi

Journal:

Year:

1989

Language:

english

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PDF, 686 KB

english, 1989

4

Preparation of aminosaccharides using ester-imine condensations: syntheses of methyl N-benzoylacosaminide and methyl N-[oxo(phenylmethoxy) acetyl)daunosaminide from (S)-ethyl 3-hydroxybutyrate

Judith C. Gallucci, Deok-Chan Ha, David J. Hart

Journal:

Year:

1989

Language:

english

File:

PDF, 1.12 MB

english, 1989

5

Synthesis of the food mutagens MelQx and 4,8-DiMelQx by copper(I) promoted quinoxaline formation

Spencer Knapp, Joseph Ziv, Joseph D. Rosen

Journal:

Year:

1989

Language:

english

File:

PDF, 391 KB

english, 1989

6

Electron-transfer substitution reactions: Facilitation by the cyano group

Nathan Kornblum, Michael J. Fifolt

Journal:

Year:

1989

Language:

english

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PDF, 945 KB

english, 1989

7

Chiral synthesis of dup 721, a new antibacterial agent

Chia-Lin J. Wang, Walter A. Gregory, Mark A. Wuonola

Journal:

Year:

1989

Language:

english

File:

PDF, 321 KB

english, 1989

8

Partial synthesis of some physiologically relevant gibberellin glucosyl conjugates

Gernot Schneider, Günther Sembdner, Klaus Schreiber, Bernard O. Phirney

Journal:

Year:

1989

Language:

english

File:

PDF, 612 KB

english, 1989

9

A macrocycle containing two biphenyl and two alanine subunits, synthesis and conformation in solution

Volker Brandmeier, Martin Feigel

Journal:

Year:

1989

Language:

english

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PDF, 836 KB

english, 1989

10

A versatile regio- and stereospecific annulation method - I: Preparation of 1-ethoxy-oxatricyclo[4.21.04,8]nonan-7-one dimethylketals and homologue systems

Edda Gössinger, Renate Müller

Journal:

Year:

1989

Language:

english

File:

PDF, 1.21 MB

english, 1989

11

A versatile regio- and stereospecific annulation method - II: Formation of substituted five- or six-membered ring systems by acidic fragmentation of 1-ethoxy-2-oxatricyclo[4.2.1.04,8]nonan-7-one derivatives

Karin Böhm, Edda Gössinger, Renate Müller

Journal:

Year:

1989

Language:

english

File:

PDF, 1.46 MB

english, 1989

12

Mononitration de phenols par des nitrates metalliques

Jean-Marie Poirier, Catherine Vottero

Journal:

Year:

1989

File:

PDF, 537 KB

1989

13

Electrochemical trifluoromethylation of carbonyl compounds

S. Sibille, S. Mcharek, J. Perichon

Journal:

Year:

1989

Language:

english

File:

PDF, 456 KB

english, 1989

14

γ-amino α-acetylenic epoxides: Preparation and biological activity due to an aldehyde reductase inhibition

Didier Bernard, Alain Doutheau, Jacques Gore, Jacques Moulinoux, Véronique Quemener, Jacqueline Chantepie, Gérard Quash

Journal:

Year:

1989

Language:

english

File:

PDF, 738 KB

english, 1989

15

Studies on oxygen heterocycles: Part-1: Acid catalysed and photochemical reactions of some aryldiazoketones

Somnath Ghosh, Indira Datta, Rupak Chakraborty, Tapas Kumar Das, Judhajit Sengupta(in part), Dipak Chandra Sarkar(in part)

Journal:

Year:

1989

Language:

english

File:

PDF, 462 KB

english, 1989

16

The conversion of (−)- and (+)-dihydrocarvone into chiral intermediates for the synthesis of (−)-polygodial, (−)-warburganal and (−)-muzigadial

Ben.J.M. Jansen, Jacoba A. Kreuger, Aede De Groot

Journal:

Year:

1989

Language:

english

File:

PDF, 542 KB

english, 1989

17

Synthesis of nonproteinogenic amino acids part 2: preparation of a synthetic equivalent of the γ anion synthon for asymmetric amino acid synthesis

Jack E. Baldwin, Michael North, Anthony Flinn, Mark G. Moloney

Journal:

Year:

1989

Language:

english

File:

PDF, 951 KB

english, 1989

18

Synthesis of nonproteinogenic amino acids part 3: conversion of glutamic acid into γ,δ-unsaturated α-amino acids

Jack E. Baldwin, Michael North, Anthony Flinn, Mark G. Moloney

Journal:

Year:

1989

Language:

english

File:

PDF, 837 KB

english, 1989

19

Chiral precursors for syntheses of furanoterpenes

Journal:

Year:

1989

Language:

english

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PDF, 980 KB

english, 1989

20

Enantioselective synthesis of 2-benzyloxy alcohols and 1,2-diols via alkylation of chiral glycolate imides. A convenient approach to optically active glycerol derivatives

Giuliana Cardillo, Mario Oren, Marta Romero, Sergio Sandri

Journal:

Year:

1989

Language:

english

File:

PDF, 460 KB

english, 1989

21

Studies on diels-alder cycloadditions of vinylketene dithioacetals

Arun K. Gupta, Hirlyakkanavar Ila, Hiriyakkanavar Junjappa

Journal:

Year:

1989

Language:

english

File:

PDF, 539 KB

english, 1989

22

Synthetic studies towards forskolin

P.G. Baraldi, A. Barco, S. Benetti, V. Ferretti, G.P. Pollini, E. Polo, V. Zanirato

Journal:

Year:

1989

Language:

english

File:

PDF, 1.21 MB

english, 1989

23

Selective monoetherification and monoesterificatton of diols and diacids under phase-transfer conditions

Jaime de la Zerda, Gabriela Barak, Yoel Sasson

Journal:

Year:

1989

Language:

english

File:

PDF, 351 KB

english, 1989

24

Why do all lariat RNA introns have adenosine as the branch point nucleotide ? Conformational studies on the implication of the branch-point modification by guanine, uracil or cytosine in the naturally.occurring branched tetranucleotide by 1H- & 31p-NMR spectroscopy

G. Remaud, N. Balgobin, C. Glemarec, J. Chattopadhyaya

Journal:

Year:

1989

Language:

english

File:

PDF, 1022 KB

english, 1989

25

Synthesis of 1-α-hydroxytestosterone

John Mann, Barbara Pietrzak

Journal:

Year:

1989

Language:

english

File:

PDF, 224 KB

english, 1989

26

Preparation of isobutyl 3,4-anhydro-2, 6-dideoxy-DL-α-lyxo-lyxo-hexopyranoside and its kinetic resolution with microsomal epoxide hydrolase

Pier Luigi Barili, Giancarlo Berti, Giorgio Catelani, Fabrizia Colonna, Ettore Mastrorilli, Marco Paoli

Journal:

Year:

1989

Language:

english

File:

PDF, 909 KB

english, 1989

27

A new and efficient route to optically active drimanes. synthesis of (+)-winterin, (+)-confertifolin, (+)-isodrimenin, and (+)-bicyclofarnesol

Juan A. Hueso-Rodriguez, Benjamín Rodriguez

Journal:

Year:

1989

Language:

english

File:

PDF, 710 KB

english, 1989

28

Distinguishihg ionization from sulfur p-type lone pair orbitals and carbon π-molecular orbitals by he I/He II photoelectron spectroscopy

Richard S. Glass, Jeffrey L. Broeker, Mark E. Jatcko

Journal:

Year:

1989

Language:

english

File:

PDF, 659 KB

english, 1989

29

Formation of 4-Halo-4-nitrocyclohexa-2,5-dienones on nitration of p-halophenols and p-halophenyl acetates

Robin G. Clewley, Gordon G. Cross, Alfred Fischer, George N. Henderson

Journal:

Year:

1989

Language:

english

File:

PDF, 838 KB

english, 1989

30

A biomimetic construction of humantenine skeleton

Hiromitsu Takayama, Kazunao Masubuchi, Mariko Kitajima, Norio Aimi, Shin-ichiro Sakai

Journal:

Year:

1989

Language:

english

File:

PDF, 727 KB

english, 1989

31

Total synthesis of (±)−jolkinolide A, B, and E utilizing a new mild esterification followsd by intramolecular Wittig-Horner reaction

Shigeo Katsumura, Akihiko Kimura, Sachihiko Isoe

Journal:

Year:

1989

Language:

english

File:

PDF, 928 KB

english, 1989

32

Synthesis of various aromatic amide derivatives using nitrile hydratase of Rhodococcus rhodochrous J1

Jacques Mauger, Toru Nagasawa, Hideaki Yamada

Journal:

Year:

1989

Language:

english

File:

PDF, 398 KB

english, 1989

33

An expedient and high yielding synthesis of mefloquine. Via fluoride ion-catalyzed Wittig rearrangement I

Journal:

Year:

1989

Language:

english

File:

PDF, 354 KB

english, 1989

34

Synthesis and conformational analysis of 2-methylthioderivatives of 1-(2'-furyl)ethanol and their O-methyl derivatives

F. Alcudia, I. Fernández, M. Trujillo, F. Zorrilla, E. Marhuenda

Journal:

Year:

1989

Language:

english

File:

PDF, 685 KB

english, 1989

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