Volume 37; Issue 6

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Tetrahedron
Volume 37; Issue 6

Tetrahedron

Volume 37; Issue 6

1

Tetsuji Kametani, Takayasu Nagahara, Yukio Suzuki, Shuichi Yokohama, Shyh-Pyng Huang and Masataka Ihara: Studies on the syntheses of heterocyclic compo: Alternative synthesis of trans-3-(1'R*-hydroxyethyl)-4-(2',2'-dimethoxyethyl)-2-azetidinone, a synthetic intermediate of thienamycin. Tetra

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1981

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1981

2

Tetrahedron report number 105 : Camptothecin: chemistry, biogenesis and medicinal chemistry

C.Richard Hutchinson

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1981

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english

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PDF, 1.78 MB

english, 1981

3

Negative and positive secondary ion mass spectra of organic acids

L.K. Liu, S.E. Unger, R.G. Cooks

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1981

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english

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PDF, 644 KB

english, 1981

4

Chair-boat interconversions in cyclic seven-membered amides and related structures

Michał W. Majchrzak, Antoni Kotełko, Roman Guryn, Joseph B. Lambert, Stephen M. Wharry

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1981

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english

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PDF, 572 KB

english, 1981

5

Conformational analysis—II: A lanthanide-induced shift nmr and theoretical study of bicyclo [3.1.0] hexan-3-one and adamantanone

Raymond J. Abraham, Derek J. Chadwick, Fernando Sancassan

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Year:

1981

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english

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PDF, 870 KB

english, 1981

6

Carbonyl carbon chemical shifts in the 13c spectra of cyclic ketones

Gordon E. Langford, Hillar Auksi, John A. Gosbee, Fred N. Maclachlan, Peter Yates

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Year:

1981

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english

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PDF, 1.29 MB

english, 1981

7

A theoretical investigation of α-substituents on the structure, proton affinities and inversion barriers of silyl anions

A.C. Hopkinson, M.H. Lien

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Year:

1981

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english

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PDF, 749 KB

english, 1981

8

Graph-theoretical analysis of the clar's aromatic sextet : Mathematical properties of the set of the kekulé patterns and the sextet polynomial for polycyclic aromatic hydrocarbons

Noriko Ohkami, Akiko Motoyama, Tamië Yamaguchi, Haruo Hosoya, Ivan Gutman

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1981

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english

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PDF, 891 KB

english, 1981

9

The structures of macbecin I and II : New antitumor antibiotics

Masayuki Muroi, Konomi Haibara, Mitsuko Asai, Kazuhide Kamiya, Toyokazu Kishi

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Year:

1981

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english

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PDF, 774 KB

english, 1981

10

Nouveau mode de cyclisation de céto-ylures.Application `a une synthèse originale d'acyl-3 hydroxy-4-coumarines et de l'hydroxy-11 benzo-(b) 12[h] xanthone-12

P Babin, J Dunogues, M Petraud

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1981

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PDF, 649 KB

1981

11

Stereochime de reactions au niveau des liaisons silicium (ou germanium)— phosphore dans le systeme dimethyl-1,2 sila (ou germa)) cyclopentanique

J. Dubac, J. Escudie, C. Couret, J. Cavezzan, J. Satge, P. Mazerolles

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Year:

1981

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PDF, 1.13 MB

1981

12

Selectivite de la reduction de cyclohexen-2 ones par NBu4BH4 dans divers solvants et par NaBH4 dans des conditions de transfert de phase

E. D'Incan, A. Loupy

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1981

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PDF, 847 KB

1981

13

Stereochemistry of tetrahydrofurofuran derivatives—circular dichroism and absolute conformation

O. Hofer, R. Schölm

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Year:

1981

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english

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PDF, 493 KB

english, 1981

14

Use of the distance/similarity measure for estimating local aromaticity in benzeneoid hydrocarbons

V. Monev, F. Fratev, O.E. Polansky, A. Mehlhorn

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Year:

1981

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english

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PDF, 341 KB

english, 1981

15

13C nuclear magnetic resonance—XIV : Carbon-fluorine coupling constants as probes for intramolecular substituent interactions

Helmut Duddeck, Md.Rabiul Islam

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Year:

1981

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english

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PDF, 409 KB

english, 1981

16

Palladium catalyzed insertion of carbon monoxide into benzyl-tetrahydroisoquinolines : A new synthesis of berbine alkaloids

Ganesh D. Pandey, Kamala P. Tiwari

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Year:

1981

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english

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PDF, 302 KB

english, 1981

17

Synthesis of heterocyclics via enamines—IX : Reactions of 1-substituted-4,4,6-trimethyl-1,4-dihydropyrimidine-2(3h)thione derivatives with dihalocarbenes

Harjit Singh, Paramjit Singh

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Year:

1981

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english

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PDF, 450 KB

english, 1981

18

Effects of the reaction environment on gas-phase proton-induced nucleophilic displacement at saturated carbon

Marina Attinà, Giancarlo Angelini, Maurizio Speranza

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Year:

1981

Language:

english

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PDF, 608 KB

english, 1981

19

α-Substituierte phosphonate—36 : α-Phosphonoenamine und acylphosphonate durch horner-olefinierung

B. Costisella, I. Keitel, H. Gross

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Year:

1981

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PDF, 503 KB

1981

20

Tricyclic diterpenoids of the dolastane ring system from the marine alga dictyota divaricata

H.H. Sun, O.J. McConnell, William Fenical, Ken Hirotsu, Jon Clardy

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Year:

1981

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english

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PDF, 672 KB

english, 1981

21

Structure and absolute stereochemistry of 19-epi-(+)-echitoveniline : A new indole alkaloid of the leaves of Alstonia venenata r.br.

P.L. Majumder, S. Joardar, B.N. Dinda, D. Bandyopadhyay, S. Joardar (Neé Saha), A. Basu

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1981

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english

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PDF, 725 KB

english, 1981

22

Assignment of relative configurations to diastereomeric carbinols with lanthanide shift reagent[eu(fod)3] : Application to 1-mesltyl-2-methyl-3-phenyl-1-propanol

C. Alvarez Ibarra, M.S. Arias Perez, M.T. Garcia Romo, M.L. Quiroga

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Year:

1981

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english

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PDF, 515 KB

english, 1981

23

Carbonyl sulfides as possible intermediates in the photolysis of oxathiiranes

Lars Carlsen, James P. Snyder, Arne Holm, Erik Pedersen

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Year:

1981

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english

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PDF, 739 KB

english, 1981

24

Solution phase synthesis of alamethicin I

R. Nagaraj, P. Balaram

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Year:

1981

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english

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PDF, 717 KB

english, 1981

25

The electronic spectrum of (−)-s-(ps)-2,5,3',6'-tetrahydro[2.2]paracyclophane-2-carboxylic acid

James L. Marshall, Lindsey Hall

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Year:

1981

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english

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PDF, 613 KB

english, 1981

26

Etude de l'effet stérique en chimie organique au moyen du volume d'activation. : Etude de l'influence de la pression dans les copolymérisations de l'anhydride maléique avec des éthylèniques substitués

G. Jener, M. Kellou

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Year:

1981

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PDF, 850 KB

1981

27

Gem-disilylcyclopropanes: préparation et utilisation en synthèse organique

Michel Laguerre, Micheline Grignon-Dubois, Jacques Dunoguès

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Year:

1981

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PDF, 680 KB

1981

28

Competition between singlet state photoreduction and triplet state photodimerization of dimethyl 3-dehydrogibberellenate

H.K. Al-Ekabi, G.A.W. Derwish, G. Adam, K. Schreiber

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Year:

1981

Language:

english

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PDF, 445 KB

english, 1981

29

A simple theoretical approach to bond energies

James R. Larson, N.D. Epiotis, Sason S. Shaik

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1981

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english

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PDF, 738 KB

english, 1981

30

A saturated asymmetric isoprene synthon : Synthesis, resolution and absolute configuration

C. Bōdeker, E.R. De Waard, H.O. Huisman

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Year:

1981

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english

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PDF, 331 KB

english, 1981

31

Some chemical transformations of pummerer's ketone

C.W. Bird, Y.-P.S. Chauhan, D.R. Turton

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Year:

1981

Language:

english

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PDF, 392 KB

english, 1981

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