Volume 54; Issue 40

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Tetrahedron
Volume 54; Issue 40

Tetrahedron

Volume 54; Issue 40

1

Nucleophilic additions of Grignard reagents to N-benzyl-2,3-O-isopropylidene-D-glyceraldehyde nitrone (BIGN). Synthesis of (2S,3R) and (2S,3S)-3-phenylisoserine

Pedro Merino, Elena Castillo, Santiago Franco, Francisco L. Merchán, Tomas Tejero

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 1.27 MB

english, 1998

2

Hydrogen bonding effects in the epoxidation of propenol with dioxiranes. A DFT computational study

Mauro Freccero, Remo Gandolfi, Mirko Sarzi-Amadè, Augusto Rastelli

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 937 KB

english, 1998

3

New synthetic brassinosteroids: a 5α-hydroxy-6-ketone analog with strong plant growth promoting activity

Carme Brosa, Lidia Soca, Emma Terricabras, Juan C. Ferrer, Antoni Alsina

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 681 KB

english, 1998

4

Comparative study of synthetic approaches to 1-arylmethylenepyrazino[2,1-b]quinazoline-3,6-diones

Pilar Cledera, Carmen Avendaño, J.Carlos Menéndez

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 746 KB

english, 1998

5

Functionalized organolithium compounds: Generation via reductive lithiation and nucleophilic addition to N-phenethylimides. Access to functionalized dihydropyrrolo[2,1-a]isoquinolinones

Izaskun Manteca, Begoña Etxarri, Ainhoa Ardeo, Sonia Arrasate, Iñaki Osante, Nuria Sotomayor, Esther Lete

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 1.09 MB

english, 1998

6

Synthesis of azaspiro[4.5]decane systems by oxidative cyclization of olefinic precursors

María J. Martín-López, Francisco Bermejo

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 651 KB

english, 1998

7

Molecular mechanism of the control of nyctinastic leaf-movement in Lespedeza cuneata G. Don

Takashi Ohnuki, Minoru Ueda, Shosuke Yamamura

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 651 KB

english, 1998

8

Angular group-induced bond alternation. III. The case of ortho-dimethoxybenzene derivatives. Crystal and molecular structure of 3,4-dimethoxybenzaldehyde (4-methylphenyl)sulfonylhydrazone

Tadeusz Marek Krygowski, Edyta Piȩtka, Romana Anulewicz, MichałKsawery Cyrański, Jacek Nowacki

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 301 KB

english, 1998

9

Separation of the energetic and geometric contribution to the aromaticity. Part IX. Aromaticity of pyrazoles in dependence on the kind of substitution

Tadeusz M. Krygowski, Romana Anulewicz, Michal K. Cyrański, Agnieszka Puchala, Danuta Rasala

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 312 KB

english, 1998

10

Synthesis and binding behavior of an artificial receptor based on “upper rim” functionalized calix[5]arene

Takeharu Haino, Kazumi Matsumura, Tetsuya Harano, Kaori Yamada, Yoshikazu Saijyo, Yoshimasa Fukazawa

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 634 KB

english, 1998

11

The chemistry of 2-alkenyl-5(4H)-oxazolones. VIII acid-catalyzed reaction with alcohols

Steven M. Heilmann, Dean M. Moren, Larry R. Krepski, Sadanand V. Pathre, Jerald K. Rasmussen, John Stevens

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 629 KB

english, 1998

12

Total syntheses of macrocyclic marine alkaloids, haliclamines A and B: A convenient and expeditious assembly of 3-substituted pyridine derivatives with different alkyl chains to the bispyridinium macrocycle

Yoshiki Morimoto, Chiho Yokoe, Hajime Kurihara, Takamasa Kinoshita

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 1.17 MB

english, 1998

13

Psylloborine A, a new dimeric alkaloid from a ladybird beetle

Frank C. Schröder, Till Tolasch

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 340 KB

english, 1998

14

Hartree Fock calculations on the effects of Lewis acids on the helimerization barrier of a lactone-bridged biaryl

Gerhard Bringmann, Ulrich Dauer, Jürgen Kraus

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 210 KB

english, 1998

15

Metalation of arylmethyl alkyl ethers

Ugo Azzena, Luciano Pilo, Alessandra Sechi

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 562 KB

english, 1998

16

A straightforward approach to unsaturated carboxylic acid derivatives starting from bis-silylated precursors

Annalisa De Girolamo, Vito Fiandanese, Giuseppe Marchese, Angela Punzi

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 522 KB

english, 1998

17

Structural study of 3,4-dihydropyridones and furo[3,4-b]-2(1H)-pyridones as potential calcium channel modulators

Estael Ochoa, Margarita Suárez, Yamila Verdecia, Beatriz Pita, Nazario Martín, Margarita Quinteiro, Carlos Seoane, JoséL. Soto, Julio Duque, Ramón Pomés

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 662 KB

english, 1998

18

New synthesis of 28- and 30- crown-formazans and Bis formazans

Ashraf A. Abbas

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 375 KB

english, 1998

19

On the mechanism of the Diels-Alder reaction of enal dienophiles. Competitive reactivity and ab initio calculations using a transannular probe

Yves L. Dory, Dennis G. Hall, Pierre Deslongchamps

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 549 KB

english, 1998

20

Contributors to this issue

Journal:

Année:

1998

Fichier:

PDF, 39 KB

1998

21

Methods for the construction of trans-hydrindane rings and their origins in steroid chemistry. Vitamin D total synthesis

Paweł Jankowski, Stanisław Marczak, Jerzy Wicha

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 3.82 MB

english, 1998

22

1,2-Hydrogen shifts in thermal and photic Bamford-Stevens reactions of cyclohexanones. Activation by an endocyclic oxygen

Kay Kim Olmstead, Alex Nickon

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 751 KB

english, 1998

23

Silver(I)/celite promoted oxidative cycloaddition of 4-hydroxycoumarin to olefins. A facile synthesis of dihydrofurocoumarins and furocoumarins

Yong Rok Lee, Byung So Kim, Han Cheol Wang

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 473 KB

english, 1998

24

Chemo- and stereoselective glycosylation of hydroxylamino derivatives: A versatile approach to glycoconjugates

Francesco Peri, Pascal Dumy, Manfred Mutter

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 599 KB

english, 1998

25

Effect of the substitution pattern on the oxidation of the isoxazolidine moiety in bi- and tricyclic compounds

Subramanian Baskaran, Hans Günter Aurich, Frank Biesemeier, Klaus Harms

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 738 KB

english, 1998

26

Regioselectivity in photocyclization of 2-(N,N-dialkylamino)- and 2-(N-alkylanilino)ethyl benzoylformates via remote proton transfer

Tadashi Hasegawa, Yuko Yamazaki

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 451 KB

english, 1998

27

Reactions of acyl tributylphosphonium chlorides and dialkyl acylphosphonates with Grignard and organolithium reagents

Hatsuo Maeda, Kenji Takahashi, Hidenobu Ohmori

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 595 KB

english, 1998

28

Graphical abstracts

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 335 KB

english, 1998