44 items found

Tags: Chemical Sciences not elsewhere classified First

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  • dataset

    r37980778c78--fb277af15837398edabe45df1c80d659

    (−)-Nakadomarin A is a member of manzamine alkaloid isolated from a marine sponge and have a unique hexacyclic structure. The first total synthesis of (+)-nakadomarin A, an...
  • dataset

    First Total Synthesis of (±)-3-Hydroxy-11-norcytisine: Structure Confirmation...

    The first total synthesis of the natural product 3-hydroxy-11-norcytisine (1), structurally related to cytisine (2), a benchmark ligand at neuronal nicotinic acetylcholine...
  • dataset

    Selective Hydrogenation of Aromatic Hydrocarbons Using a Triruthenium Carbony...

    Selective Hydrogenation of Aromatic Hydrocarbons Using a Triruthenium Carbonyl Cluster as a Template to Control the Hydrogenation Site:  First Successful Isolation of...
  • dataset

    The First Direct Oxidative Conversion of a Selenol to a Stable Selenenic Acid...

    A stable selenenic acid was synthesized by direct oxidation of a selenol bearing a novel bowl-type substituent with H2O2, and its structure was established by X-ray...
  • dataset

    Metamagnetism of the First Cyano-Bridged Two-Dimensional Brick-Wall-like 4f−3...

    Metamagnetism of the First Cyano-Bridged Two-Dimensional Brick-Wall-like 4f−3d Array
  • publication

    The First Tetrathiafulvalene− σ−Polynitrofluorene Diads: Low HOMO−LUMO Gap, A...

    The synthesis, solution redox behavior, EPR, and intramolecular charge transfer properties of novel donor−acceptor diads of TTF−σ−A type (TTF = substituted tetrathiafulvalene, σ...
  • publication

    Metal-Mediated C−C Bond Making and Breaking:  First Direct Evidence for a Rev...

    Metal-Mediated C−C Bond Making and Breaking:  First Direct Evidence for a Reversible Migration of a Benzyl Group along a Metal−Carbon Bond
  • publication

    r37980778c78--810807c7e1b0833bc00e8726b9c1d0ed

    The First Total Synthesis of N1999-A2:  Absolute Stereochemistry and Stereochemical Implications into DNA Cleavage
  • publication

    r37980778c78--5445a49109405e6d8c8609f829ac4469

    New Strategies in Organic Catalysis:  The First Enantioselective Organocatalytic Friedel−Crafts Alkylation
  • publication

    Studies on the Total Synthesis of Streptazolin and Its Related Natural Produc...

    The intramolecular Pauson−Khand reaction of 2-oxazolone derivatives with a suitable heptynyl appendage gave exclusively the corresponding...
  • publication

    Microwave Assisted "Click" Chemistry for the Synthesis of Multiple Labeled-Ca...

    A versatile approach has been developed for the multiple labeling of oligonucleotides. First, three linkers as a H-phosphonate monoester derivative were condensed on a...
  • publication

    r37980778c78--0131168ff551e7a4fd8a86d27615f25a

    A new synthesis of l-noviose (11), a sugar moiety of novobiocin, is presented. d-Gulonolactone was initially converted in a few steps to the key ester derivative 7 [1-O-benzyl...
  • publication

    Construction of Eight-Membered Ether Rings by Olefin Geometry-Dependent Inter...

    The first and highly stereoselective asymmetric total syntheses of eight-membered ring ether marine natural products (+)-3-(E)-pinnatifidenyne and (+)-3-(Z)-pinnatifidenyne have...
  • publication

    34π Octaphyrin:  First Structural Characterization of a Planar, Aromatic [1.0...

    34π Octaphyrin:  First Structural Characterization of a Planar, Aromatic [1.0.1.0.1.0.1.0] Octaphyrin with Inverted Heterocyclic Rings
  • publication

    dedup_wf_001--e9d59187e29f1e1d9cbb831cd3a25cea

    Talk at workshop "First Galaxies, First Structures" October 21-25 2019 Observatory of Paris
  • publication

    The First Total Synthesis of Nakadomarin A [<i>J. Am. Chem. Soc.</i> <b>2003<...

    The First Total Synthesis of Nakadomarin A [J. Am. Chem. Soc. 2003, 125, 7484−7485].
  • publication

    r37980778c78--bd7c3c431cef0a28592d9b43fdf8546e

    First Demonstration of Helical Chirality in 1,4-Disubstituted (Z,Z)-1,3-Dienes:  R3Si−SnR‘3-Mediated Cyclization of 1,6-Diynes
  • publication

    Synthesis of the First Corrolazine:  A New Member of the Porphyrinoid Family

    Synthesis of the First Corrolazine:  A New Member of the Porphyrinoid Family
  • publication

    r37980778c78--4f233579b962a9b7b72d5464f8c22fb0

    New Strategies in Organic Catalysis:  The First Enantioselective Organocatalytic Friedel−Crafts Alkylation
  • publication

    r37980778c78--d4b099fa30e5e5fd3a243991dc64d6e5

    New Strategies for Organic Catalysis:  The First Highly Enantioselective Organocatalytic Diels−Alder Reaction