Results 91 to 100 of about 61,381 (342)
The cyclopropylcarbinyl route to γ-silyl carbocations
Beilstein Journal of Organic Chemistry, 2019 The mesylate derivative of cis-1-hydroxymethyl-2-trimethylsilylcyclopropane has been prepared, along with a number of related mesylates and triflates with substituents on the 1-position.
Xavier Creary
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Angewandte Chemie International Edition, EarlyView.Gas‐phase fragmentation experiments and theoretical calculations on a series of model complexes determine the intrinsic tendencies of the late 3d metals to undergo one‐versus two‐electron reactions and unravel the factors controlling the selectivity. Abstract Although organometallic complexes of the late 3d elements are known to undergo both one‐and ...
Torben Kühl +3 more
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Characterization of Bacteria by Gas Chromatography: Comparison of Trimethylsilyl Derivatives of Whole-Cell Hydrolysates [PDF]
, 1969 Davood Farshtchi, C W Moss
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Conversion of Bestmann Ylide into Carbophosphinocarbene
Angewandte Chemie International Edition, EarlyView.The ortho‐carboranyl carbophosphinocarbene(CPC) was synthesized via a click‐type reaction. Experimental and computational studies reveal its remarkable electron‐donating ability. Reactivity studies demonstrate its versatility as a stabilizing ligand, a strong nucleophile for CO₂ activation, and a potent Brønsted base for imidazolium deprotonation ...
Libo Xiang +4 more
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A Novel Method for Synthesis of Substituted Naphthofurans and Naphthopyrans [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 1997 Substituted naphthofurans and naphthopyrans were constructed at high temperature from allyl or propargyl naphthyl ethers via Claisen rearrangement in moderate to good yields.
Mohammad Reza Saidi +3 more
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Notizen: Bis-(trimethylsilyl-methansulfonsäure)-imid [PDF]
, 1969 Armand Blaschette
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Iridium-catalyzed reductive Ugi-type reactions of tertiary amides
Nature Communications, 2018 Chemical transformation of amides is normally occurring under harsh conditions. Here, the authors report a mild iridium-catalyzed reductive Ugi-type coupling of tertiary amides, isocyanides and (thio)acetic acid or trimethylsilyl azide to give homologous,
Lan-Gui Xie, Darren J. Dixon
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Angewandte Chemie International Edition, Accepted Article.Photocleavable molecules are valuable tools for biological studies, enabling spatiotemporal activation of molecular functions within cellular environments. In particular, coumarin‐based photolytic molecules are useful because of their ability to flexibly tune the wavelength of photostimulation through their structural modifications.
Masahiko Yoshimura +5 more
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Isolation and characterization of glucosylsphingosine from Gaucher's spleen
Journal of Lipid Research, 1974 Glucosylsphingosine has been isolated for the first time as a natural constituent from Gaucher's spleen. On thinlayer chromatography, it migrates with authentic glucosylsphingosine, yielding a positive color reaction with ninhydrin for the amino group ...
Srinivasa S. Raghavan +2 more
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iScience, 2020 Summary: As a privileged motif, tetrazoles can be widely found in pharmaceuticals and materials science. Herein, a five-component reaction of cycloketone oxime esters, alkynes, DABCO·(SO2)2, and two molecules of trimethylsilyl azide under iron catalysis ...
Jun Zhang +3 more
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