Volume 25; Issue 50

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Tetrahedron Letters
Volume 25; Issue 50

Tetrahedron Letters

Volume 25; Issue 50

1

The preparation of 1,3-bis(trimethylsilyl)allene and the observation of the enantiomers using olefin complexing chiral shift reagents

Paul E. Peterson, Bruce L. Jensen

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 246 KB

english, 1984

2

Sodium 6-methoxy-(E,E)-3,5-hexadienoate: a useful diene in the aqueous diels-alder reaction

Paul A. Grieco, Kiyoshi Yoshida, Zhen-min He

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 288 KB

english, 1984

3

Facile route to 1-phosphoryl- and 1-sulfonyl-1,3-dienes via palladium-catalyzed elimination of allylic acetates

Björn Åkermark, Jan-E. Nyström, Tobias Rein, Jan-E. Bäckvall, Paul Helquist, Robert Aslanian

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 271 KB

english, 1984

4

An improved synthesis of (4S,5S)-2,2-dimethyl-4-phenyl-1,3-dioxan-5-amine

Ivan C. Nordin, James A. Thomas

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 99 KB

english, 1984

5

A simple method for the direct bis-acylation of the primary amino groups in spermidine and other linear triamines

Alummoottil V. Joshua, John R. Scott

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 185 KB

english, 1984

6

Dealkylative decarboxylation. IV. A novel approach to ketene thioacetals

J.L. Belletire, D.R. Walley, S.L. Fremont

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 220 KB

english, 1984

7

The methylenation of enolizable ketones and esters using organotitanium chemistry

Leigh Clawson, Stephen L. Buchwald, Robert H. Grubbs

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 196 KB

english, 1984

8

A convenient synthesis of Δ1-pyrrolines and Δ1- piperideines

Larry E. Overman, Robert M. Burk

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 89 KB

english, 1984

9

The importance of vinylsilane stereochemistry and σ - π stabilization in iminium ion-vinylsilane cyclizations. A short total synthesis of the amaryllidaceae alkaloid (−) −epielwesine.

Larry E. Overman, Robert M. Burk

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 210 KB

english, 1984

10

Synthetic approach to anthracyclinone C-glycosides

Edward M. Acton, Kenneth J. Ryan, Michael Tracy

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 195 KB

english, 1984

11

Reactions of furans, thiophenes and pyrroles with activated carbonyl compounds under thermal and high pressure conditions

G. Jenner, N. Papadopoulos, J. Jurczak, T. Koźluk

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 194 KB

english, 1984

12

Existence d'isomeres e et z d'ylures de cycloimmonium

G. Surpateanu, A. Lablache-Combier, M. Constantinescu, J. Marko

Journal:

Tetrahedron Letters

Year:

1984

File:

PDF, 175 KB

1984

13

Ring size effects on the gas phase protonation of cyclic ketones

G. Bouchoux, R. Houriet

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 212 KB

english, 1984

14

A straightforward synthesis of pyrenophorin

P. Breuilles, D. Uguen

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 175 KB

english, 1984

15

3-alcoxy-allenyllithium reagents as β-acyl vinyl anion equivalents. A new synthesis of pyrenophorin.

Fadila Derguini, Gérard Linstrumelle

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 193 KB

english, 1984

16

Free-radical addition of BrCCl3 to 1-decene initiated by tetrahydrofurane

M. Heintz, G. Leny, J.Y. Nedelec

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 107 KB

english, 1984

17

Enantiospecific synthesis of optically active cyclohexylidene bromomethanes

Guy Solladie, Richard G. Zimmermann

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 189 KB

english, 1984

18

Definitive evidence for a proximal effect of pyridine in the NaOCl/Mn(porphyrin)x / pyridine catalytic oxygenation system

Olga Bortolini, Michel Momenteau, Bernard Meunier

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 284 KB

english, 1984

19

New decarboxylative chalcogenation of aliphatic and alicyclic carboxylic acids.

Derek H.R. Barton, Dominique Bridon, Samir Z. Zard

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 198 KB

english, 1984

20

Synthesis of macrocyclic terpenoids by intramolecular cyclization IX. Total synthesis of (±)-obscuronatin and (±)-biflora-4,10(19),15-triene.

Mitsuaki Kodama, Kunihito Okumura, Yoshihisa Kobayashi, Tetsuto Tsunoda, Shô Itô

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 218 KB

english, 1984

21

Studies on chemical carcinogens and mutagens. XXVII alkylating property of mutagenic N-trimethylsilylmethyl-N-nitrosourea, a silicon-analogue of N-neopentyl-N-nitrosourea, in aqueous media

Shin-ichi Ninomiya, Masakazu Ebie, Atsushi Hakura, Kohfuku Kohda, Yutaka Kawazoe, Takayuki Shioiri

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 243 KB

english, 1984

22

Stereospecific phenylation of alkenylsilanes with phenylpalladium acetate

Kiyoshi Kikukawa, Kazutoshi Ikenaga, Fumio Wada, Tsutomu Matsuda

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 224 KB

english, 1984

23

Threo selective cross aldol condensation with thioamide enolates generated by a michael addition of organometallics to unsaturated thioamides

Y. Tamaru, T. Hioki, Z. Yoshida

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 227 KB

english, 1984

24

Unusual stereoselectivity in the synthesis of 4-oxa-δ-valerothiolactones: structure proof of β-hydroxythioamide

Yoshinao Tamaru, Masuhiro Okada, Osamu Kitao, Zen-Ichi Yoshida

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 234 KB

english, 1984

25

Determination of absolute configuration and enantiomeric purity of spirocyclic alcohols by 1h nmr

Kuninobu Kabuto, Fujiko Yasuhara, Shozo Yamaguchi

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 265 KB

english, 1984

26

Oxygenation of substituted 2′-hydroxyacetophenone 4-bromophenylhydrazones promoted by cobalt(II) schiff base complex

Akira Nishinaga, Shigekazu Yamazaki, Teruo Matsuura

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 212 KB

english, 1984

27

Nitration of imidazoline-n-oxide nitroxides containing the aryl nitrone group

L.B. Volodarsky, I.A. Grigor'ev, L.N. Grigor'eva, I.A. Kirilyuk

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 230 KB

english, 1984

28

Examination of the ring-chain isomerism of 2-hydroxy-chromanones with 1H NMR spectroscopy

János Borbély, Vince Szabó

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 218 KB

english, 1984

29

A caveat regarding chiroptical measurements of chiral anthracyclinones

Richard A. Russell, Robert W. Irvine, Adrian S. Krauss

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 244 KB

english, 1984

30

Copper(1) catalysed aromatic nucleophilic substitution: A mechanistic and synthetic comparison with the SRN1 reaction

W.Russell Bowman, Harry Heaney, Philip H.G. Smith

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 286 KB

english, 1984

31

Base catalyzed rearrangement of oxy-cope systems

R. Uma, S. Swaminathan, K. Rajagopalan

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 237 KB

english, 1984

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