Showing papers in "Heterocycles in 1995"

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Journal Article•DOI•

Cyclic Carboxylic Imide Structures as Structure Elements of High Stability. Novel Developments in Perylene Dye Chemistry

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Heinz Langhals

01 Jan 1995-Heterocycles

TL;DR: In this paper, a cyclic carboxylic imides (CCHI) structure element in aromatic heterocycles with high persistency is described and its attachment to perylene leads to the perylene dyes.

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Abstract: Cyclic carboxylic imides are structure elements in aromatic heterocycles with high persistency. Their attachment to perylene leads to the perylene dyes; the synthesis and unique properties of the dyes are reported and discussed. An extension of the principle to other aromatics is made.

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434 citations

Journal Article•DOI•

(diethylamino) sulfur trifluoride (dast) as a useful reagent for the preparation of 2-oxazolines from 1,2-amido alcohols

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Pierre Lafargue, Pierre Guenot¹, Jean-Paul Lellouche•Institutions (1)

University of Rennes¹

01 Jan 1995-Heterocycles

71 citations

Journal Article•DOI•

The Highly Efficient Oxidation of Olefins, Alcohols, Sulfides and Alkanes with Heteroaromatic N-Oxides Catalyzed by Ruthenium Porphyrins

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Hiro Ohtake, Tsunehiko Higuchi, Masaaki Hirobe

01 Jan 1995-Heterocycles

64 citations

Journal Article•DOI•

An efficient asymmetric aldol reaction of 4-trimethylsiloxy-6-methylene-1,3-dioxines by chiral binaphthol-titanium complex catalysis

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Masayuki Sato, Satoshi Sunami, Yoshiaki Sugita, Chikara Kaneko

01 Jan 1995-Heterocycles

63 citations

Journal Article•DOI•

Silver catalyzed cyclization of alkynoic acids : efficient synthesis of 3-alkylidenephthalides, gamma -alkylidenebutenolides, and gamma 9-alkylidenebu tyrolactone

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Takeshi Wakamatsu, Yoshimitsu Ogawa, Masao Maruno

01 Jan 1995-Heterocycles

60 citations

Journal Article•DOI•

1,3-Dipolar Cycloaddition Chemistry of 2,3-Bis(phenylsulfonyl)-1,3-diene with Diazoalkanes

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Albert Padwa, Michael Meske, Augusto Rodoriguez

01 Jan 1995-Heterocycles

47 citations

Journal Article•DOI•

N-[bis(methylthio) methylene] amino esters (BMMA): novel reagents for annelation of pyrimidine moieties

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Fritz Sauter, Johannes Fröhlich, Krain Blasl, Karl Gewald

01 Jan 1995-Heterocycles

39 citations

Journal Article•DOI•

Synthesis and reactions of lithiated monocyclic azoles containing two or more hetero-atoms. Part VI: triazoles, tetrazoles, oxadiazoles, and thiadiazoles

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Brian Iddon, M. Ross Grimmett¹•Institutions (1)

University of Otago¹

01 Jan 1995-Heterocycles

37 citations

Journal Article•DOI•

Connection Between Metalation of Azines and Diazines and Cross-Coupling Startegies for the Synthesis of Natural and Biologically Active Molecules

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A. Godard, F. Marsais, Nelly Plé, F. Trecourt, Alain Turck, Guy Quéguiner - Show less +2 more

01 Jan 1995-Heterocycles

37 citations

Journal Article•DOI•

Dimeric murrayafoline A, a potential bis-carbazole alkaloid: biomimetic synthesis, atropoisomer separation, and antimalarial activity

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Gerhard Bringmann¹, Alfons Ledermann¹, Guido François•Institutions (1)

University of Würzburg¹

01 Jan 1995-Heterocycles

37 citations

Journal Article•DOI•

Studies on the alkylation of chiral, non-racemic, tricyclic pyrrolidinones

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John A. Ragan, Michelle C. Claffey

01 Jan 1995-Heterocycles

Journal Article•DOI•

Absolute stereochemistries of sylvaticin and 12, 15-cis- sylvaticin, bioactive c-20, 23-cis non-adjacent bis-tetrahydrofuran annonaceous acetogenins, from rollinia mucosa

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Guoen Shi, Lu Zeng, Zhe-Ming Gu, J. M. Macdougal, Jerry L. McLaughlin - Show less +1 more

01 Jan 1995-Heterocycles

Journal Article•DOI•

Heck Annulation on 2-Position of Indoles or 1H-Pyrrolo[2,3-b]pyridine

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E. Desarbre, J.-Y. Merour

01 Jan 1995-Heterocycles

Journal Article•DOI•

Efficient and regioselective photocyclization reactions of n-(omega -trimethylsilylmethoxy)polyoxalkylphthalimides to azacrown ethers

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Ung Chan Yoon, Sun Wha Oh, Chan Woo Lee

01 Jan 1995-Heterocycles

Journal Article•DOI•

Concise enantioselective synthesis of (+)-asperlin by application of the sharpless kinetic resolution to 2-furylmethanol derivatives bearing alkenyl moiety on the side chain

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Toshio Honda, Nobuko Sano, Kazuo Kanai

01 Jan 1995-Heterocycles

Journal Article•DOI•

Efficient synthesis and biological properties of new benzopentathiepins

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Ryu Sato, Tetsuya Ohyama, Satoshi Ogawa

01 Jan 1995-Heterocycles

Journal Article•DOI•

Heterocycles from Intramolecular Wittig, Horner and Wadsworth-Emmons Reactions

[...]

B. Mark Heron¹•Institutions (1)

University of Central Lancashire¹

01 Oct 1995-Heterocycles

TL;DR: The synthesis of a range of heterocyclic systems based on intramolecular reactions of phosphorus ylides and phosphinoxy and phosphonate carbanions is reviewed in this paper.

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Abstract: The synthesis of a range of heterocyclic systems based on intramolecular reactions of phosphorus ylides and phosphinoxy and phosphonate carbanions is reviewed

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