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Showing 1 to 5 of 5 for “"Catecholborane"”.
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Metal-catalyzed reactions.
… in which the amide was reacting with the catecholborane resulting in hydroboration occurring without added metal catalysts. Furthermore, catalytic amounts of simple amides, such as dimethylacetamide, could be added to catecholborane to form an active hydroboration reagent. A range of …
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Catalytic hydroboration: a study of model hydridoiridium and hydridorhodium boron complexes
… of the B-H bond in (1,2-phenylenedioxy) borane (catecholborane) to (Me₃P)₃Ir(Cl)(H) (BO₂C₆H₄ (<B>II</B>) produces <i>mer</i>-(Me₃P}₃Ir(Cl)(H)(B0₂C₆H₄) (<B>II</B>), which was characterized by ¹H NMR spectroscopy and single crystal X-ray diffraction. Compound <B>II</B> reacted with alkynes to form …
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Asymmetrische Totalsynthese des hochwirksamen Prostacyclin-Analogons Cicaprost
… was reduced with high diastereoselectivity with catecholborane in the presence of a chiral oxazaborolidine catalyst. The alpha-side chain was established by a stereoselective olefination of the bicyclic ketone, containing the complete omega-side chain, with a chiral phosphono acetate derived from …
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Reactivity of a Low Valent Gallium Compound
… 1,3-addition reaction with phenylsilane and catecholborane forming gallium hydrazonides. Its reaction with diborane resulted in the formal nitrene insertion into the B-B bond to produce a gallium diborylamide. DFT calculations revealed intermediate gallium alkylidene formation from the …
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Asymmetrische Totalsynthese von 16(S)-Iloprost und 3-Oxa-16(S)-Iloprost mittels der Azoen-Strategie
… reduction of the ketone was performed by using catecholborane and an oxazaborolidine catalyst. One of the major key steps is the conjugate 1,4 addition of an C13-C20 organocopper building block to the bicyclic C6-C12 azoene with formation of the corresponding hydrazone in 84% yield. The E-Isomer …