Volume 19; Issue 40

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Tetrahedron Letters
Volume 19; Issue 40

Tetrahedron Letters

Volume 19; Issue 40

1

The ortho-quinodimethane route to anthracyclinones a new synthesis of 4-demethoxydaunomycinone

John R. Wiseman, Nadine Iroff French, Richard K. Hallmark, Kaolin G. Chiong

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 260 KB

english, 1978

2

A short, simple, stereocontrolled, steroid total synthesis: (±)-11-oxoequilenin methyl ether

Carl M. Lentz, Gary H. Posner

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 259 KB

english, 1978

3

Cyanohydrins - a general synthesis

Paul G. Gassman, John J. Talley

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 200 KB

english, 1978

4

[2.2.2.2] Orthoparacyclophane

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 212 KB

english, 1978

5

A novel new heterocycle from the reaction of azide ion with 2,3-diphenylthiirene 1,1-dioxide

Bruce B. Jarvis, G.Patrick Stahly, Herman L. Ammon

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 167 KB

english, 1978

6

Organic reactions of sulfur dioxide. 5. Reactions with cyclic dienes: a dual pathway for aromatization of the 1,3- and 1,4-cyclohexadienes

Divakar Masilamani, Milorad M. Rogić

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 216 KB

english, 1978

7

Synthesis of a spirovetivane intermediate: a problem in carbonyl transposition

K.P. Subrahamanian, William Reusch

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 185 KB

english, 1978

8

Nouvelle methode de preparation des acetates d'ethyle α, α-fluoro-halocenes

Elias Elkik, Michèle Imbeaux-Oudotte

Journal:

Tetrahedron Letters

Year:

1978

File:

PDF, 213 KB

1978

9

Homologation du methanol en presence de diols

A. Deluzarche, G. Jenne, A. Kiennemann

Journal:

Tetrahedron Letters

Year:

1978

File:

PDF, 152 KB

1978

10

Utilisation d'un derive organique du chrome dans la synthese de composes alleniques

Pierre Place, Françoise Delbecq, Jacques Gore

Journal:

Tetrahedron Letters

Year:

1978

File:

PDF, 147 KB

1978

11

Eine neue stereospezifische synthese von genipin

Journal:

Tetrahedron Letters

Year:

1978

File:

PDF, 176 KB

1978

12

Synthese und eigenschaften von 1-desoxy-hex-1-enopyran-3-ulosen

Joachim Weißmüller, Horst Kunz

Journal:

Tetrahedron Letters

Year:

1978

File:

PDF, 125 KB

1978

13

The tetrahydroisoquinoline oxidative rearrangement

Hiroshi Hara, Machiko Hosaka, Osamu Hoshino, Bunsuke Umezawa

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 201 KB

english, 1978

14

Mutual resolution of (±)-ephedrine and Z-DL-amino acid induced by seeding chiral salt

Chi-Huey Wong, Kung-Tsung Wang

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 211 KB

english, 1978

15

Indoline vs. benzazepine ring formation via intramolecular arylation of N-phenethyl enaminones

Hideo Iida, Yoshifumi Yuasa, Chihiro Kibayashi

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 129 KB

english, 1978

16

Microwave and NMR studies of the structure and the conformational isomerization of 3,6-dihydro-1,2-dioxin

Toshihiko Kondo, Masakatsu Matsumoto, Mitsutoshi Tanimoto

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 281 KB

english, 1978

17

The reaction of ethylene thiourea with carbon disulfide

Masataka Yokoyama, Satoshi Ohtuki, Motomu Muraoka, Tatsuo Takeshima

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 221 KB

english, 1978

18

Reactivity-selectivity relationships. Part 10. Orbital control and its effect on selectivity in SN2 reactions.

Yishai Karton, Addy Pross

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 223 KB

english, 1978

19

A perturbational interpretation of enolate alkylation: C/O selectivity and electrophile leaving group effect.

J.M. Lefour, P. Sarthou, G. Bram, F. Guibé, A. Loupy, J. Seyden-Penne

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 163 KB

english, 1978

20

Synthesis of dinucleoside monophosphorothioates via addition of sulphur to phosphite triesters.

Peter M.J. Burgers, Fritz Eckstein

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 201 KB

english, 1978

21

Conformational interconversion in a strained ketone: Tetra-t-butylacetone. A DNMR (1H, 13C) study.

Jacques-Emile Dubois, Jean-Pierre Doucet, Bernard Tiffon

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 130 KB

english, 1978

22

An SN (anrorc) mechanism in the amino-demethoxylation of 4,6-dimethoxypyrimidines

C.A.H. Rasmussen, H.C. van der Plas

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 128 KB

english, 1978

23

Synthesis, conformation and ion-complexing properties of cyclo-[L-tyr(OBzl)-gly]3

Jassim Al-Hassan, John S. Davies

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 235 KB

english, 1978

24

Dithioacetic acid trimers.

Guy Levesque, Ahmed Mahjoub, André Thuillier

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 115 KB

english, 1978

25

Synthesis of 15β-hydroxylated derivatives of dehydroisoandrosterone and isoandrosterone

G. Defaye, E.M. Chambaz

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 140 KB

english, 1978

26

Permethyl-4,4′-bis-Δ1,2-pyrazolinylibene (4) the synthesis and x-ray chystallographic structure of a highly crowded olefin

Richard J. Bushby, Michael D. Pollard, Walter S. McDonald

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 198 KB

english, 1978

27

The question of a T.M.M. intermediate (1) in the flash vacuum pyrolysis of 3-isopropylidene-2,2,4,4-tetramethylthietan 1,1-dioxide (2) and of 4-isopropylidene-3,3,5,5-tetramethyl-Δ1,2-pyrazoline (3) and in the photolysis of (3)

Richard J. Bushby, Michael D. Pollard

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 201 KB

english, 1978

28

The kinetics of nitrogen elimination from 4-alkylidene-Δ1,2-pyrazolines

Richard J. Bushby, Michael D. Pollard

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 115 KB

english, 1978

29

New stereospecific synthesis of chiral thioacetal monosulfoxides

Lino Colombo, Cesare Geinnari, Enrica Narisano

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 128 KB

english, 1978

30

Solid phase photolysis: Photocleavage of a sterically hindered azoxybenzene into aryldiazonium and phenoxide ions

Dietrich Döpp, Dietmar Müller

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 218 KB

english, 1978

31

O- and N-acylureas in peptide synthesis by DCC method. New observations

Anatol Arendt, Aleksander M. Kołodziejczyk

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 150 KB

english, 1978

32

The preparation of d-norsteroidal skeletal type from a diterpenic precursor

Paolo Ceccherelli, Marco Tingoli, Massimo Curini, Roberto Pellicciari

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 127 KB

english, 1978

33

Solaseaforthine and isosolaseaforthine, two novel 3-amino-20-pyridyl pregnanes from solanum seaforthianum

Esahak Ali, Ajit K. Chakravarty, Tarun K. Dhar, Satyesh C. Pakrashi

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 256 KB

english, 1978

34

Hispigenin, a novel 22β0-spirostane from solanum hispidum

Ajit K. Chakravarty, Tarun K. Dhar, Satyesh O. Pakrashi

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 313 KB

english, 1978

35

Indole alkaloids of rauwolfia reflexa. The structures of rauflexine and reflexine

Asima Chatterjee, Manas Chakrabarty, Ashim Kumar Ghosh, Edward W. Hagaman, Ernest Wenkert

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 233 KB

english, 1978