Volume 48; Issue 27

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Tetrahedron
Volume 48; Issue 27

Tetrahedron

Volume 48; Issue 27

1

Contributors to this issue

Journal:

Year:

1992

File:

PDF, 43 KB

1992

2

Tetrahedron symposia-in-print

Journal:

Year:

1992

Language:

english

File:

PDF, 180 KB

english, 1992

3

Preface

Manfred T. Reetz

Journal:

Year:

1992

Language:

english

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PDF, 74 KB

english, 1992

4

Graphical abstracts

Journal:

Year:

1992

Language:

english

File:

PDF, 406 KB

english, 1992

5

Titanium tetrachloride-mediated enantioselective synthesis of trans β-lactones

Silvia Cardani, Carlo De Toma, Cesare Gennari, Carlo Scolastico

Journal:

Year:

1992

Language:

english

File:

PDF, 716 KB

english, 1992

6

Spectroscopic studies on the TiCl4-promoted reaction of allylsilanes with aldehydes and α,β-enones

Scott E. Denmark, Neil G. Almstead

Journal:

Year:

1992

Language:

english

File:

PDF, 1.07 MB

english, 1992

7

Investigation of the diastereofacial selectivity of the addition of 1-metalated (E)- and (Z)-hept-1-enes to the COREY aldehyde — A comparison between vinyllithium and vinyltitanium compounds1,2

H. Schick, J. Spanig, R. Mahrwald, M. Bohle, T. Reiher, K.K. Pivnitsky

Journal:

Year:

1992

Language:

english

File:

PDF, 634 KB

english, 1992

8

A new type of complex reagent, R4Pb / TiCl4

Yoshinori Yamamoto, Jun-ichi Yamada, Tetsuya Asano

Journal:

Year:

1992

Language:

english

File:

PDF, 702 KB

english, 1992

9

Stereoselective Michael additions of titanium “ate” complexes of ketone and ester enolates

Anna Bernardi, Pierfranco Dotti, Giovanni Poli, Carlo Scolastico

Journal:

Year:

1992

Language:

english

File:

PDF, 827 KB

english, 1992

10

Synthesis and transformation of pyrrole C-glycoconjugates

Giovanni Casiraghi, Mara Cornia, Gloria Rassu, Carlo Del Sante, Pietro Spanu

Journal:

Year:

1992

Language:

english

File:

PDF, 750 KB

english, 1992

11

Ring opening of the epoxide moiety of (2S, 3S, 4S)-4-amino-2,3-epoxy-1-alkanol and its derivatives: A key role of Ti(O-i-Pr)4 as a mild catalyst

Hirokazu Urabe, Yoshiaki Aoyama, Fumie Sato

Journal:

Year:

1992

Language:

english

File:

PDF, 519 KB

english, 1992

12

Aryl- and alkynyltri-isopropoxytitanium reagents in regioselective carbon-carbon bond formation in azines

Lise-Lotte Gundersen, Frode Rise, Kjell Undheim

Journal:

Year:

1992

Language:

english

File:

PDF, 968 KB

english, 1992

13

Sparteine complexes of lithiated primary O-2-alkenyl carbamates stereochemistry of the lithium-titanium exchange and application for the synthesis of enantiomerically enriched γ-lactones

Oliver Zschage, Dieter Hoppe

Journal:

Year:

1992

Language:

english

File:

PDF, 884 KB

english, 1992

14

Chiral titanium complex-catalyzed carbonyl-ene reaction with glyoxylate: Remarkable positive nonlinear effect

Koichi Mikami, Masahiro Terada

Journal:

Year:

1992

Language:

english

File:

PDF, 760 KB

english, 1992

15

Chelate-controlled Mukaiyama reactions with chiral β-formyl esters

Hubert Angert, Thomas Kunz, Hans-Ulrich Reissig

Journal:

Year:

1992

Language:

english

File:

PDF, 592 KB

english, 1992

16

Asymmetric aldol reactions of an α′-benzoyl titanium enolate

Anusuya Choudhury, Edward R. Thornton

Journal:

Year:

1992

Language:

english

File:

PDF, 646 KB

english, 1992

17

Copper-catalyzed reactions of organotitanium reagents. Highly selective SN2′-allylation and conjugate addition

Masayuki Arai, Bruce H. Lipshutz, Eiichi Nakamura

Journal:

Year:

1992

Language:

english

File:

PDF, 769 KB

english, 1992

18

Asymmetric synthesis of diastereomerically and enantiomerically pure α-amino-γ-nitro carboxylic esters via Michael addition of the titanated bislactim ether of cyclo (-L-Val-Gly-) to nitroolefines

Karla Busch, Ulrich M Groth, Wulf Kühnle, Ulrich Schöllkopf

Journal:

Year:

1992

Language:

english

File:

PDF, 1.03 MB

english, 1992

19

Diastereoface-discrimination reaction of lithium or titanium ester enolates with a chiral imine leading to stereodivergent synthesis of β-lactams

Tamotsu Fujisawa, Yutaka Ukaji, Tomohiro Noro, Kengo Date, Makoto Shimizu

Journal:

Year:

1992

Language:

english

File:

PDF, 924 KB

english, 1992

20

Synthesis of the insect pheromone (+)-eldanoline by enantioselective homoaldol reaction

Holger Paulsen, Dieter Hoppe

Journal:

Year:

1992

Language:

english

File:

PDF, 341 KB

english, 1992

21

A catalytic enantioselective reaction using a C2-symmetric disulfonamide as a chiral ligand: Alkylation of aldehydes catalyzed by disulfonamide-Ti(O-i-Pr)4-Dialkyl zinc system

Hideyo Takahashi, Takashi Kawakita, Masaji Ohno, Masato Yoshioka, Susumu Kobayashi

Journal:

Year:

1992

Language:

english

File:

PDF, 747 KB

english, 1992

22

Enantioselective preparation of sec. Alcohols from aldehydes and dialkyl zinc compounds, generated in situ from Grignard reagents, using substoichiometric amounts of TADDOL-titanates

Joanna Linda von dem Bussche-Hünnefeld, Dieter Seebach

Journal:

Year:

1992

Language:

english

File:

PDF, 1.04 MB

english, 1992

23

A rapid injection NMR study of the chelation controlled Mukaiyama aldol addition: TiCl4 versus LiClO4 as the Lewis acid

Manfred T Reetz, Burkhard Raguse, Charles F Marth, Helmut M Hügel, Thorsten Bach, David N.A Fox

Journal:

Year:

1992

Language:

english

File:

PDF, 819 KB

english, 1992

24

Use of 1,3-oxazolidin-2-one derivatives of 3-borylpropenoic acids as β-hydroxy acrylic acid equivalents in the asymmetric Diels-Alder reaction catalyzed by a chiral titanium reagent

Koichi Narasaka, Ichiro Yamamoto

Journal:

Year:

1992

Language:

english

File:

PDF, 971 KB

english, 1992

25

Synthesis and transformation of pyrrole C-glycoconjugates

Journal:

Year:

1992

File:

PDF, 750 KB

1992

26

Diastereoface-discrimination reaction of lithium or titanium ester enolates with a chiral imine leading to stereodivergent synthesis of β-lactams

Journal:

Year:

1992

File:

PDF, 924 KB

1992

27

A catalytic enantioselective reaction using a C2-symmetric disulfonamide as a chiral ligand: alkylation of aldehydes catalyzed by disulfonamide-Ti(O-i-Pr)4-dialkyl zinc system

Journal:

Year:

1992

File:

PDF, 747 KB

1992

28

Ring opening of the epoxide moiety of (2S, 3S, 4S)-4-amino-2,3-epoxy-1-alkanol and its derivatives: A key role of Ti(O-i-Pr)4 as a mild catalyst

Journal:

Year:

1992

Language:

english

File:

PDF, 519 KB

english, 1992