Volume 47; Issue 24

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Tetrahedron
Volume 47; Issue 24

Tetrahedron

Volume 47; Issue 24

1

Graphical abstracts

Journal:

Year:

1991

Language:

english

File:

PDF, 478 KB

english, 1991

2

The camalexins: New phytoalexins produced in the leaves of camelina sativa (cruciferae).

Lois M. Browne, Kenneth L. Conn, William A. Ayert, Jalpa P. Tewari

Journal:

Year:

1991

Language:

english

File:

PDF, 396 KB

english, 1991

3

Structure elucidation of restricticin, a novel antifungal agent from penicillium restrictum

Otto D. Hensens, Carol F. Wichmann, Jerrold M. Liesch, Frank L. VanMiddlesworth, Kenneth E. Wilson, Robert E. Schwartz

Journal:

Year:

1991

Language:

english

File:

PDF, 611 KB

english, 1991

4

An efficient method for hydrolysis of N-monosubstituted amides utilization of intramolecular NO acyl migration in hydroxypivalimides

Tetsuto Tsunoda, Osamu Sasaki, Osamu Takeuchi, Shô Itô

Journal:

Year:

1991

Language:

english

File:

PDF, 709 KB

english, 1991

5

Synthesis of 1,4-dicarbonyl compounds and 4-keto pimelates by palladium-catalyzed carbonylation of siloxycyclopropanes

Satoshi Aoki, Eiichi Nakamura

Journal:

Year:

1991

Language:

english

File:

PDF, 742 KB

english, 1991

6

Synthesis, properties and crystal structure of the tripeptide boc-L-prolyl-L-propargylglycyl-glycine methylester

Hans Willisch, Wolfgang Hiller, Bahram Hemmasi, Ernst Bayer

Journal:

Year:

1991

Language:

english

File:

PDF, 672 KB

english, 1991

7

Inverse-electron-demand diels-alder reactions of condensed pyridazines, part 1. Synthesis of phthalazine derivatives from pyridazino[4,5-d]pyridazines.

Journal:

Year:

1991

Language:

english

File:

PDF, 673 KB

english, 1991

8

Etude de la regioselectivite en fluoration anodique de derives benzyliques

Eliane Laurent, Bernard Marquet, Robert Tardivel

Journal:

Year:

1991

File:

PDF, 754 KB

1991

9

Le 2-trimethylsilylmethyl allyltrimethylsilane, precurseur de carbocycles et heterocycles a groupe methylenique

Bernard Guyot, Jacques Pornet, Léone Miginiac

Journal:

Year:

1991

File:

PDF, 487 KB

1991

10

Preparation of optically active 1-aminoalkylphosphonic acids by stereoselective enzymatic hydrolysis of racemic N-acylated 1-aminoalkylphosphonic acids

V.A Solodenko, T.N Kasheva, V.P Kukhar, E.V Kozlova, D.A Mironenko, V.K Švedas

Journal:

Year:

1991

Language:

english

File:

PDF, 626 KB

english, 1991

11

The synthesis of 16,16-dimethyl-15-keto-prostaglandin B1 oligomers. The chemical structures of dimers.

I Martin, J Anvelt, T Pehk, O Lille

Journal:

Year:

1991

Language:

english

File:

PDF, 411 KB

english, 1991

12

X=Y-ZH systems as potential 1,3-dipoles. Part 31. Generation of nitrones from oximes. Background and scope of the tandem 1,2-prototropy-intramolecular cycloaddition sequence.

Ronald Grigg, Frances Heaney, Jasothara Markandu, Sivagnanasundram Surendrakumar, Thornton-Pett Mark, Warnock J. William

Journal:

Year:

1991

Language:

english

File:

PDF, 1.48 MB

english, 1991

13

Ring-chain tautomerism and three- to four-component equilibria in fused-ring tetrahydro-1,3-oxazines

Kalevi Pihiaja, Aija Parkkinen, Ferenc Fülöp, Jonna Mattinen, Gábor Bernath

Journal:

Year:

1991

Language:

english

File:

PDF, 489 KB

english, 1991

14

Tin tetrachloride-induced π-cyclizations of glycine cation equivalents to substituted pipecolic acid derivatives

Peter M Esch, Ilona M Boska, Henk Hiemstra, Richard F de Boer, W.Nico Speckamp

Journal:

Year:

1991

Language:

english

File:

PDF, 1.82 MB

english, 1991

15

Formic acid-induced π-cyclization of glycine cation equivalents to substituted pipecolic acid derivatives

Peter M Esch, de Boer F Richard, Hiemstra Henk, Ilona M Boska, Speckamp W. Nico

Journal:

Year:

1991

Language:

english

File:

PDF, 1.02 MB

english, 1991

16

Intramolecular free-radical substitution of pyridinium rings

John A. Murphy, Michael S. Sherburn

Journal:

Year:

1991

Language:

english

File:

PDF, 856 KB

english, 1991

17

Isolation of dihydroclavaminic acid, an intermediate in the biosynthesis of clavulanic acid

Jack E. Baldwin, Robert M. Adlington, Justin S. Bryans, Alain O. Bringhen, Janice B. Coates, Nicholas P. Crouch, Matthew D. Lloyd, Christopher J. Schofield, Stephen W. Elson, Keith H. Baggaley, Robert

Journal:

Year:

1991

Language:

english

File:

PDF, 792 KB

english, 1991

18

Bis(benzocrown ether)s with polymethylene bridges and their appilication in ion-selective electrodes

Elzbieta Luboch, Andrzej Cygan, Jan F. Biernat

Journal:

Year:

1991

Language:

english

File:

PDF, 647 KB

english, 1991

19

Synthesis of defined peptide-oligonucleotide hybrids containing a nuclear transport signal sequence.

Ramon Eritja, Anna Pons, Mónica Escarcellar, Ernest Giralt, Fernando Albericio

Journal:

Year:

1991

Language:

english

File:

PDF, 618 KB

english, 1991

20

An efficient C2-homologation of aromatic aldehydes via 5-hydroxyisoxazolidines

L Di Nunno, A Scilimati

Journal:

Year:

1991

Language:

english

File:

PDF, 786 KB

english, 1991

21

A short and efficient synthesis of the C-3 to C-10 portion of the maytansinoids

David M. Hodgson, Philip J. Parsons, Peter A. Stones

Journal:

Year:

1991

Language:

english

File:

PDF, 829 KB

english, 1991

22

Metachloropehoxybenzoic acid promoted stereoselective synthesis of 2,5-disubstituted tetrahydrofurans from α or γ-allyl-β-hydroxy esters: A formal synthesis of (±) methyl nonactate

Javed Iqbal, Anu Pandey, Bhanu P.S Chauhan

Journal:

Year:

1991

Language:

english

File:

PDF, 680 KB

english, 1991

23

Models of folate cofactors - 22. Lewis acid catalyzed cyclization of carbon-fragment transfer products of folate cofactor models. Synthesis of enantiomerically pure tetracyclic (ABCE) ring system of aspidosperma alkaloids.

R.H Huizenga, U.K Pandit

Journal:

Year:

1991

Language:

english

File:

PDF, 837 KB

english, 1991

24

Models of folate cofactors - 23. A synthetic strategy to the aspidosperma skeleton. Synthesis of the 21-epimer of 20-deethyl-3,17-dioxo-16-ethoxycarbonyl-1-methylaspidospermidine.

R.H Huizenga, J van Wiltenburg, H Bieräugel, U.K Pandit

Journal:

Year:

1991

Language:

english

File:

PDF, 834 KB

english, 1991

25

Iminophosphorane-mediated synthesis of fused carbazoles. A facile one-pot preparation of 7H-pyrido [4,3-c]carbazole and 10H-pyrido[3,4-b]carbazole derivatives.

Pedro Molina, Pilar M. Fresneda, Pedro Almendros

Journal:

Year:

1991

Language:

english

File:

PDF, 797 KB

english, 1991

26

Reactivity of ethanediyl S,S-acetals - 3. Ring aromatization in cyclohexanone derivatives: A novelty synthesis of 1,4-benzodithians

Romualdo Caputo, Carla Ferreri, Giovanni Palumbo, Francesco Russo

Journal:

Year:

1991

Language:

english

File:

PDF, 533 KB

english, 1991

27

Chiral synthesis of 6,7-benzomorphans: Synthesis of (−)1(S),2(S),4(R),6(R)-1,2,3,4,5,6-hexahydro-2,6-methano-8-methoxy -1,3,4,6-tetramethyl-3-benzazocine through the chromium hexacarbonyl mediated cyclisation of 1(S),1′(R)-1,2-dihydro-7-methoxy-1,4-dimethyl -1(N-methyl-N-trifluoroacetamido-1′-methylethan-2′-yl)naphthalene

Malcolm Sainsbury, Mary F. Mahon, Colin S. Williams, Alan Naylor, David I.C. Scopes

Journal:

Year:

1991

Language:

english

File:

PDF, 1.15 MB

english, 1991

28

On the reaction of trisubstituted olefins with phenylselenenyl chloride in methanol

P. Ceccherelli, M. Curini, M.C. Marcotullio, O. Rosati

Journal:

Year:

1991

Language:

english

File:

PDF, 474 KB

english, 1991