Volume 25; Issue 49

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Tetrahedron Letters
Volume 25; Issue 49

Tetrahedron Letters

Volume 25; Issue 49

1

The potentially antiaromatic (4n-π) α-heteronaphthalenyl anions

A.G. Anastassiou, H.S. Kasmai, B. Naderi

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 121 KB

english, 1984

2

Carbon nucleophilic displacements on kamiya's azetidinone disulfide: Synthesis of c-2 modified penicillins

C.U. Kim, P.F. Misco, U.J. Haynes, D.N. McGregor

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 161 KB

english, 1984

3

Synthesis of fluorinated biphenyls via aryne reaction

Adeboye Adejare, Duane D. Miller

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 115 KB

english, 1984

4

The monobenzo and mononaphtho nonafulvene frames

A.G. Anastassiou, M.R. Saadein

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 133 KB

english, 1984

5

[8]Paratropyliophane

Randolph P Thummel, Paochai Chayangkoon

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 128 KB

english, 1984

6

Stereoselective peterson alkoxycarbonylmethylenation reaction of substituted cyclohexanones

Lucjan Strekowski, Melean Visnick, Merle A. Battiste

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 187 KB

english, 1984

7

Furans as intermediates for the synthesis of oxygenated natural products. Asymmetric synthesis of Prelog-Djerassi lactone.

Stephen F. Martin, Denise E. Guinn

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 185 KB

english, 1984

8

Effective, thermal one-carbon + two-carbon cycloaddition of cyclopropenone ketals with electron-deficient olefins: Cyclopropane formation.

Dale L. Boger, Christine E. Brotherton

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 182 KB

english, 1984

9

Thermal, three-carbon + two-atom cycloaddition of cyclopropenone ketals with carbon-heteroatom double bonds: Butenolide, furan, and γ-keto ester preparation.

Dale L. Boger, Christine E. Brotherton, Gunda I. Georg

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 170 KB

english, 1984

10

Synthesis of 1,14-diamino-5,10-diaza-N1,N14,5,10- tetrakis-/9-(β-d-ribofuranosyl)purin-6-yl/-tetradecane - a new oligonucleotide analogue with stacked base residues

Jiří Žemlička

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 189 KB

english, 1984

11

13C NMR of carbonyl compounds. 3. Structure and dynamics of protonated enones and dienones

Klaus Müllen, Eleni Kotzamani, Hans Schmickler, Bruno Frei

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 255 KB

english, 1984

12

Aza-di-π methan-umlagerungen ?

U. Demlehner, J. Sauer, H. Nöth, H.J. Lindner

Journal:

Tetrahedron Letters

Year:

1984

Language:

german

File:

PDF, 269 KB

german, 1984

13

Chiral relaxation reagents (crr) in 13C NMR spectroscopy: First determination of enantiomeric excess

Edgar Hofer, Regina Keuper

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 128 KB

english, 1984

14

Analytical enantiomer separation of aliphatic diols as boronates and acetals by complexation gas chromatography

V. Schurig, D. Wistuba

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 260 KB

english, 1984

15

Conversion of anguidine into calonectrin and 3-deacetyl-calonectrin

Nicolas Jeker, Peter Mohr, Christoph Tamm

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 204 KB

english, 1984

16

β-Eliminierung an quartären hydraziniumsalzen, eine neue methode zur darstellung unsymmetrisch alkylierter diamine

R. Askani, K.M. Müller

Journal:

Tetrahedron Letters

Year:

1984

File:

PDF, 191 KB

1984

17

Neue wege zum cyclobutadien und methylencyclopropen

Günther Maier, Manfred Hoppe, Klaus Lanz, Hans Peter Reisenauer

Journal:

Tetrahedron Letters

Year:

1984

File:

PDF, 206 KB

1984

18

Reduction D′α,α′-dibromoorthoxylenes par les sels chromeux : generation facile d'orthoquino-dimethanes

D. Stephan, A. Gorgues, A. Le Coq

Journal:

Tetrahedron Letters

Year:

1984

File:

PDF, 269 KB

1984

19

Olefin addition to acetylated glycals. A new route to C-glycosides.

J. Herscovici, K. Muleka, K. Antonakis

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 244 KB

english, 1984

20

Alkylation of malonates or schiff base anions with dichlorofluoromethane as a route to α-chlorofluoromethyl or α-fluoromethyl α-amino acids

P. Bey, J.B. Ducep, D. Schirlin

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 232 KB

english, 1984

21

A highly stereoselective Michael reaction of simple ester enolates to α,β-unsaturated esters

Masahiko Yamaguchi, Michinori Tsukamoto, Shinya Tanaka, Ichiro Hirao

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 244 KB

english, 1984

22

rel-(1R,4R,5S)-5-hydroxy-3-oxo-2-azabicyclo[2.2.0]hexane, a stable synthetic equivalent of 4-(2-oxoethyl)azetidin-2-one

Nobuya Katagiri, Masayuki Sato, Toshihiko Naito, Makoto Muto, Toshiyuki Sakamoto, Satoshi Saikawa, Chikara Kaneko

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 251 KB

english, 1984

23

Synthesis of 1,4-dihydropyrrolo[3,2-b]pyrrole

Tsutomu Kumagai, Shoji Tanaka, Toshio Mukai

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 235 KB

english, 1984

24

Convenient preparation and effective separation of the C-2 and C-3 tosylates of α-cyclodextrin

Kahee Fujita, Satoru Nagamura, Taiji Imoto

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 217 KB

english, 1984

25

Factors controlling the diastereoface selectivity in the complementary asymmetric alkylation of α-alkyl β-keto esters

Kiyoshi Tomioka, Kaori Ando, Yutaka Takemasa, Kenji Koga

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 260 KB

english, 1984

26

Generation of an active acyl species from stable 1-methyl-2-acyl-1h-imidazoles

Shunsaku Ohta, Satoshi Hayakawa, Masao Okamoto

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 271 KB

english, 1984

27

Synthesis and properties of 5-(2,3-diphenylcyclopropenylidene)-1,6-methano-2(5h)-[10]- annulenone (or 10,11-diphenyl-4,9-methano[3.10]quinaren-3-one). Contribution of a homobenzene structure annelated on [3.6]quinaren-3-one

Kazuko Takahashi, Keiichi Ohnishi, Kahei Takase

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 306 KB

english, 1984

28

Stereoselective synthesis of β-fluoroallyl alcohols

Takeo Taguchi, Tomoyuki Takigawa, Yumiko Tawara, Tsutomu Morikawa, Yoshiro Kobayashi

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 206 KB

english, 1984

29

Abnormal nucleophilic substitution of 3-trichloromethylpyridines by methoxide

Ronald S. Dainter, Hans Suschitzky, Basil J. Wakefield, Nigel Hughes, Anthony J. Nelson

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 201 KB

english, 1984

30

C-glycosides through the Wittig-cyclization procedure: Observations on the influence of the nature of the substrate.

Francesco Nicotra, Fiamma Ronchetti, Giovanni Russo, Lucio Toma

Journal:

Tetrahedron Letters

Year:

1984

File:

PDF, 213 KB

1984

31

Synthesis on templates : Regiospecific synthesis of imidazoles

Darshan Ranganathan, Firdous Farooqui

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 276 KB

english, 1984

32

Proximity effects in 1-azaspirocyclo[5.5]undecanes. X-ray structure determination of a diol derivative

Andrew B. Holmes, Paul R. Raithby, Maria J. Rosales, Keith Russell, Edward S. Stern, Michael E. Stubbs

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 218 KB

english, 1984

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