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Heterocyclic Compounds (heterocyclic + compound)

Distribution by Scientific Domains
Chemistry100%
Distribution within Chemistry
Organic Chemistry90%
General & Introductory Chemistry4%
2 Other Subdomains6%

Kinds of Heterocyclic Compounds

  • new heterocyclic compound
    		•
  • novel heterocyclic compound
    		•

    Selected Abstracts

    [2 + 3]Cycloaddition Reaction of a Kinetically Stabilized Distibene with a Nitrile Oxide Leading to the Formation of a Unique Heterocyclic Compound.

    CHEMINFORM, Issue 40 2007
    T. Sasamori
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    ChemInform Abstract: Ionic Liquids as Solvents for a Ruthenium-Catalyzed C,H Activation Reaction: Synthesis of Heterocyclic Compounds from ,,,-Unsaturated Imines, Carbon Monoxide, and Ethylene.

    CHEMINFORM, Issue 36 2010
    Tobias Biletzki
    Abstract The influence of reaction conditions (ionic liquid, pressure, temperature, time) on outcome and product ratio is studied. [source]

    ChemInform Abstract: A New Route to Heterocyclic Compounds by the Mercuric Acetate Oxidation of N-Alkyl Substituted 4-Piperidones.

    CHEMINFORM, Issue 3 2009
    Andrew C. Flick
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    One-Pot Synthesis of Heterocyclic Compounds Initiated by Chemoselective Addition to ,-Acyl Substituted Unsaturated Aldehydes with Nucleophilic Tin Complexes.

    CHEMINFORM, Issue 20 2007
    Ikuya Shibata
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    Synthesis of N-Methoxy-N-methyl-,-enaminoketoesters: New Synthetic Precursors for the Regioselective Synthesis of Heterocyclic Compounds.

    CHEMINFORM, Issue 46 2006
    Tobias Persson
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    The Use of Anilinodihydrothiophenes in the Synthesis of Novel Heterocyclic Compounds.

    CHEMINFORM, Issue 14 2006
    M. Hammouda
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    Use of Tetramethylthiuram Disulfide (II) in Synthesis of Nitrogen-Containing Heterocyclic Compounds

    CHEMINFORM, Issue 11 2006
    A. M. Demchenko
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    Synthesis and Antimicrobial Study of Novel Heterocyclic Compounds from Hydroxybenzophenones.

    CHEMINFORM, Issue 10 2006
    Shaukath A. Khanum
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    Use of 1,5-Diaminotetrazole in the Synthesis of Some Fused Heterocyclic Compounds.

    CHEMINFORM, Issue 48 2005
    Mamdouh A. M. Taha
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Use of ,-(N,N-dialkylamino)propiophenones in the Synthesis of Nitrogenated Heterocyclic Compounds

    CHEMINFORM, Issue 26 2005
    R. Abonia
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Cycloisomerization Promoted by the Combination of a Ruthenium-Carbene Catalyst and Trimethylsilyl Vinyl Ether, and Its Application in the Synthesis of Heterocyclic Compounds: 3-Methylene-2,3-dihydroindoles and 3-Methylene-2,3-dihydrobenzofurans.

    CHEMINFORM, Issue 46 2004
    Yukiyoshi Terada
    No abstract is available for this article. [source]

    Tandem Oxidation Processes for the Preparation of Nitrogen-Containing Heteroaromatic and Heterocyclic Compounds.

    CHEMINFORM, Issue 28 2004
    Steven A. Raw
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Fluorinated Heterocyclic Compounds: An Assay on the Photochemistry of Some Fluorinated 1-Oxa-2-azoles: An Expedient Route to Fluorinated Heterocycles.

    CHEMINFORM, Issue 21 2004
    Silvestre Buscemi
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    N-3-Oxoalkylamides and -thioamides in the Synthesis of Heterocyclic Compounds.

    CHEMINFORM, Issue 19 2004
    Part 6.
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    A New Method for Alkoxymethyl (MOM or EOM) Protection of Thiol Functionality in Heterocyclic Compounds.

    CHEMINFORM, Issue 17 2004
    Hyung Jae Jeong
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Novel Coumarin Derivatives of Heterocyclic Compounds as Lipid-Lowering Agents.

    CHEMINFORM, Issue 43 2003
    Gurram R. Madhavan
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Peri and Regioselective Synthesis of New Heterocyclic Compounds from 1,5-Benzodiazepines.

    CHEMINFORM, Issue 23 2003
    S. Elhazazi
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Research on Heterocyclic Compounds.

    CHEMINFORM, Issue 20 2003
    Part 43.
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Ring Transformations of Heterocyclic Compounds.

    CHEMINFORM, Issue 38 2002
    Part 22.
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    ChemInform Abstract: Reactions of N-(2,2-Dichloro-2-phenylethylidene)arenesulfonamides with Aromatic and Heterocyclic Compounds.

    CHEMINFORM, Issue 23 2002
    G. N. Rozentsveig
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: Synthesis of Some New Heterocyclic Compounds from Benzopyrano[2,3-c]pyrazol-3-one Derivatives.

    CHEMINFORM, Issue 51 2001
    A. Khodairy
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: ortho-Aminocarbonitriles as Precursor for the Synthesis of Some Novel Heterocyclic Compounds.

    CHEMINFORM, Issue 13 2001
    V. Peesapati
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    Heterocyclic compounds from 4h -3,1-benzoxazin-4-one derivatives as anticancer agent

    JOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 7 2005
    Taha M Abdel-Rahman
    Behaviour of 2-(4-oxo-4H -benzo[d][l,3]oxazin-2-yl)-benzoic acid (1) towards nitrogen nucleophiles namely, hydrazine hydrate, in different solvents, ammonium acetate, and o -phenylenediamine has been investigated to give aminoquinazolin-4-one, benzotriazepinone, spiro-type compound, and nitrogen bridgehead compounds 3-5, respectively. Also, reactivity of the aminoquinazolin-4-one 2 towards carbon elec-trophiles such as ethyl acetoacetate, ethyl phenylacetate, ethyl chloroacetate, and aromatic aldehydes has been discussed. Reaction of Schiff s base 8 with sulfur nucleophiles namely o -aminothiophenol and/or thio-glycolic acid afforded Michael type adducts. Structural assignments, of products 1-24 have been confirmed by elemental analysis and spectral data (1H- and 13C -NMR and MS fragmentation). The bioassay indicates that some of the target compounds obtained have good selective anticancer activity. [source]

    ChemInform Abstract: Synthesis and [3 + 2] Cycloaddition Reaction of 3-[(Trimethylsilylmethylamino)(methylthio)methylene]heterocyclic Compounds.

    CHEMINFORM, Issue 7 2002
    Yoshinori Tominaga
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    Synthesis of 1,3-Diphospha-2,3-dihydro-1H -phenalenes

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 10 2010
    Arkadii Tarasevych
    Abstract The reaction of 1,8-dilithionaphthalene (1) with methylenebis[(dialkylamino)chlorophosphanes] [R2N(Cl)PCH2P(Cl)NR2; R = Me (2a), Et (2b)] leads to the formation of new heterocyclic compounds, 1,3-diphospha-2,3-dihydro-1H -phenalenes 3a,b as a mixture of cis and trans isomers. DFT calculations indicate that the cis isomers are thermodynamically more stable by about 1,3 kcal/mol than the trans isomers. Compounds 3a,b can be converted into dithio the derivatives 5a,b and the borane complexes 6a,b, which were characterized by NMR spectroscopy and investigated by X-ray diffraction analysis. The dialkylamino groups in 3 can be substituted by chlorine to give the chlorophosphane 7. [source]

    Gold(I) Catalysis: Selective Synthesis of Six- or Seven-Membered Heterocycles from Epoxy Alkynes

    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 19 2009
    Lun-Zhi Dai
    Abstract Gold(I)-catalyzed intramolecular cycloisomerization of ketone-substituted epoxides with alkynes to six- or seven-membered heterocyclic compounds is firstly introduced in this paper. This procedure involves a cascade isomerization of the ketone-substituted epoxides into 1,3-diketones in the presence of a Lewis acid and subsequent gold(I)-catalyzed selective intramolecular addition of an oxygen or a carbon nucleophile to the alkynes. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) [source]

    Reactions of Allyl Alcohols of the Pinane Series and of Their Epoxides in the Presence of Montmorillonite Clay

    HELVETICA CHIMICA ACTA, Issue 2 2007
    Irina
    Abstract The reactivity of allyl alcohols of the pinane series and of their epoxides in the presence of montmorillonite clay in intra- and intermolecular reactions was studied. Mutual transformations of (+)- trans -pinocarveol ((+)- 2) and (,)-myrtenol ((,)- 3a) were major reactions of these compounds on askanite,bentonite clay (Schemes,1 and 2). However, the two reactions gave different isomerization products, indicating that the reactivity of the starting alcohol (+)- 2 or (,)- 3a was different from that of the same compound (+)- 2 or (,)- 3 formed in the course of the reactions. (,)- cis - and (+)- trans -Verbenol ((,)- 16 and (+)- 12, resp.), as well as (,)- cis -verbenol epoxide ((,)- 20) reacted with both aliphatic and aromatic aldehydes on askanite,bentonite clay giving various heterocyclic compounds (Schemes,4, 5 and 7); the reaction path depended on the structure of both the terpenoid and the aldehyde. [source]

    Chalcogenation reactions of a stable ferrocenyldiphosphene: Formation of thia-, selena-, and telluradiphosphiranes,

    HETEROATOM CHEMISTRY, Issue 5 2008
    Noriyoshi Nagahora
    The reactions of TbtPPTbt (Tbt = 2,4,6-tris[bis(trimethylsilyl)methyl]phenyl) with elemental sulfur and selenium in the presence of triethylamine resulted in the formation of the corresponding thia- and selenadiphosphiranes in 71% and 65%, respectively, whereas the tellurization reaction was unsuccessful probably due to the steric reason. On the other hand, treatment of TbtPPFc (Fc = ferrocenyl) with elemental sulfur, selenium, and tributylphosphine telluride afforded the corresponding thia-, selena-, and telluradiphosphiranes in 84%, 88%, and 66% yields, respectively. The molecular structures of these three-membered heterocyclic compounds were confirmed by spectroscopic analysis. © 2008 Wiley Periodicals, Inc. Heteroatom Chem 19:443,449, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20449 [source]

    Copper(I)-Catalyzed Synthesis of Novel 4-(Trifluoromethyl)-[1,2,3]triazolo[1,5- a]quinoxalines via Cascade Reactions of N -(o -Haloaryl)alkynylimine with Sodium Azide

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 8 2010
    Zixian Chen
    Abstract Novel tricyclic 4-(trifluoromethyl)-[1,2,3]triazolo[1,5- a]quinoxalines were readily prepared from N -(o -haloaryl)alkynylimines and sodium azide via copper(I)-catalyzed tandem reactions. This synthetic strategy provides an efficient way to access a library of novel heterocyclic compounds that are of interest in drug discovery. [source]

    Gold(I)-Catalyzed One-Pot Tandem Coupling/Cyclization: An Efficient Synthesis of Pyrrolo-/Pyrido[2,1- b]benzo[d][1,3]oxazin- 1-ones

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 2-3 2010
    Yu Zhou
    Abstract A highly efficient method has been developed for the one-pot synthesis of multi-ring heterocyclic compounds such as pyrrolo-/pyrido[2,1- b]benzo[d][1,3]oxazin-1-ones from o -aminobenzyl alcohols via a gold(I)-catalyzed tandem coupling/cyclization reaction. Significantly, the strategy presents a straightforward and efficient approach to construct novel tricyclic or polycyclic molecular architectures in which two new CN bonds and one CO bond are formed in a one-pot reaction operation from two simple starting materials. Moreover, a broad spectrum of substrates can participate in the process effectively to produce the desired products in good yields. [source]