Volume 47; Issue 20-21

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Tetrahedron
Volume 47; Issue 20-21

Tetrahedron

Volume 47; Issue 20-21

1

Graphical abstracts

Journal:

Year:

1991

Language:

english

File:

PDF, 380 KB

english, 1991

2

Preparation of trifluoromethyl ketones and related fluorinated ketones

Jean-Pierre Bégué, Danièle Bonnet-Delpon

Journal:

Year:

1991

Language:

english

File:

PDF, 2.32 MB

english, 1991

3

Synthesis of (+)-, (−)- and (±)-7′-hydroxyabscisic acid

Lloyd A.K. Nelson, Angela C. Shaw, Suzanne R. Abrams

Journal:

Year:

1991

Language:

english

File:

PDF, 753 KB

english, 1991

4

New chlorinated diterpenes from the gorgonian Junceella gemmacea

Hai-yin He, D.John Faulkner

Journal:

Year:

1991

Language:

english

File:

PDF, 592 KB

english, 1991

5

The reaction of trialkylstannylmethyllithium with α,β-epoxy ketones and α-chloro ketones

Tadashi Sato, Toshihiro Kikuchi, Hiroshi Tsujita, Atsushi Kaetsu, Norio Sootome, Ken-ichiro Nishida, Kazutaka Tachibana, Eigoro Murayama

Journal:

Year:

1991

Language:

english

File:

PDF, 1.39 MB

english, 1991

6

Total synthesis of nstx-3, spider toxin of nephila maculata

Tadashi Teshima, Takahiro Matsumoto, Tateaki Wakamiya, Tetsuo Shiba, Yoshio Aramaki, Terumi Nakajima, Nobufumi Kawai

Journal:

Year:

1991

Language:

english

File:

PDF, 544 KB

english, 1991

7

Asymmetric synthesis of primary amines from alkenes and chiral chloronitroso sugar derivatives.

H. Braun, H. Felber, G. Kreße, A. Ritter, F.P. Schmidtchen, A. Schneider

Journal:

Year:

1991

Language:

english

File:

PDF, 1014 KB

english, 1991

8

Microbial reduction of N-allylhydroxylamines to N-allyl-amines using clostridia

H. Braun, F.P. Schmidtchen, A. Schneider, H. Simon

Journal:

Year:

1991

Language:

english

File:

PDF, 386 KB

english, 1991

9

Secondary metabolites by chemical screening -13. Enantioselective synthesis of δ-lactones from streptenola, achiral building block from streptomyces

Yvonne Romeyke, Martin Keller, Heinz Kluge, Susanne Grabley, Peter Hammann

Journal:

Year:

1991

Language:

english

File:

PDF, 914 KB

english, 1991

10

C3-homologation. Synthesis of C19-skipped polyenic pheromones.

Jacques Viala, Pascal Munier, Maurice Santelli

Journal:

Year:

1991

Language:

english

File:

PDF, 424 KB

english, 1991

11

Stereochemical course of the [2,3]-sigmatropic rearrangement of substituted propargyl n,n-dialkylamidosulfoxylates. X-ray molecular structure of [S, (S)R]-4-[(1,4,4-trimethyl-1,2-pentadienyl)sulfinyl]-morpholine.

Jean-Bernard Baudin, Itka Bkouche-Waksman, Sylvestre A. Julia, Claudine Pascard, Yuan Wang

Journal:

Year:

1991

Language:

english

File:

PDF, 732 KB

english, 1991

12

Stereoselective synthesis of vinylbenzothiazoles and their epoxides.

S. Florio, G. Ingrosso, L. Ronzini, E. Epifani

Journal:

Year:

1991

Language:

english

File:

PDF, 551 KB

english, 1991

13

Reactions of α-chloroimines with homophthalic anhydrides. Synthesis and molecular structure of 3,3a-dihydrofuro[3,4-c] isoquinoline-1,5(4h,9bh)-diones, furo[3′, 4′:9,9α]-8,9,16,16a-tetrahydro-1h,3h,11h-dibenzo[a,g]quinolizine-1,11-diones and related compounds

Angelina Georgieva, Elena Stanoeva, Stefan Spassov, Josef Macicek, Olyana Angelova, Marietta Haimova, Norbert De Kimpe

Journal:

Year:

1991

Language:

english

File:

PDF, 793 KB

english, 1991

14

Synthesis of 2,2-dialkylcyclopropylamines from β-chloroimines and application towards the synthesis of1-amino-2,2-dialkylcyclopropane-carboxylic acids

Norbert De Kimpe, Paul Sulmon, Marc Boeykens

Journal:

Year:

1991

Language:

english

File:

PDF, 1.03 MB

english, 1991

15

A convenient method for the synthesis of β-chloroamines by electrophilic reduction of α-chloroimines

Norbert De Kimpe, Christian Stevens

Journal:

Year:

1991

Language:

english

File:

PDF, 497 KB

english, 1991

16

Solution structure of branched U3′p5′A2′p5′G3′p5′C and its comparison with A2′p5′G3′p5′U by 500 MHz NMR spectroscopy

C. Glemarec, M. Jaseja, A. Sandström, L. Koole, P. Agback, J. Chattopadhyaya

Journal:

Year:

1991

Language:

english

File:

PDF, 891 KB

english, 1991

17

Synthesis of new 2′, 3′-modified uridine derivatives from 2′,3′-ene-2′-phenylselenonyl uridine by Michael addition reactions

W. Tong, Z. Xi, C. Gioeli, J. Chattopadhyaya

Journal:

Year:

1991

Language:

english

File:

PDF, 1.95 MB

english, 1991

18

Total synthesis of (±)-α-allokainic acid via two allylsilane N-acyliminium ion reactions

Hendrik H Mooiweer, Henk Hiemstra, W.Nico Speckamp

Journal:

Year:

1991

Language:

english

File:

PDF, 914 KB

english, 1991

19

Two neo-clerodane diterpenoids containing an unusual 2,6-dioxabicyclo[2.2.1]heptane structural moiety

María C. de la Torre, Maurizio Bruno, Franco Piozzi, Giuseppe Savon, Abdallah A. Omar, Aurea Perales, Benjamin Rodríguez

Journal:

Year:

1991

Language:

english

File:

PDF, 553 KB

english, 1991

20

Origins of stereoselectivity in chiral boron enolate aldol reactions: A computational study using transition state modellings

Anna Bernardi, Anna M Capelli, Angiolina Comotti, Cesare Gennari, Mark Gardner, Jonathan M Goodman, Ian Paterson

Journal:

Year:

1991

Language:

english

File:

PDF, 884 KB

english, 1991

21

Palladium-catalysed coupling of vinyl triflates with enynes and its application to the synthesis of 1α,25-dihydroxyvitamin D3

José L. Mascareñas, Luis A. Sarandeses, Luis Castedo, Antonio Mouriño

Journal:

Year:

1991

Language:

english

File:

PDF, 1.06 MB

english, 1991

22

Cycloaromatization of α-oxoketene dithioacetals and β-oxodithioacetals with benzyl-,1-(naphthylmethyl) and 2-(naphthylmethyl)magnesium halides: Synthesis of condensed polynuclear aromatic hydrocarbons

Ch.Srinivasa Rao, Maliakel P Balu, Hiriyakkanavar Ila, Hiriyakkanavar Junjappa

Journal:

Year:

1991

Language:

english

File:

PDF, 851 KB

english, 1991