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Showing 1 to 5 of 5 for “"diboration"”.
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Development of Novel, Regioselective Borylation Protocols
… development of both a transition metal-catalyzed diboration and a transition metal-free protoboration. A transition metal-free diboration of alkynamides is described in Chapter 1 which uses the unsymmetrical, differentially protected diboron reagent, pinBBdan. The method installs both boron …
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Metal-Catalyzed Formation and Transformations of Carbon-Boron Bonds
… substrates are uniquely advantageous given that diboration results in the formation of both allylic and vinylic boronates. Orthogonal reactivity of the sp2 and the sp3 C-B bonds can allow for chemoselective transformations. However, oxidation of the carbon-boron bond is one example in which the …
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Development of Transition Metal-Catalyzed Borylation Protocols using Symmetrical and Unsymmetrical Diboron Reagents
… as confirmed by stability studies. The terminal diboration of allenes was previously the only reported method for the synthesis of vinyl, allyl diboronate esters.
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The development and applications of unsymmetrical diboron compounds
… two C-B bonds in one reaction, a Pt-catalyzed diboration of allenes with a differentially protected diboron reagent (PDAN) is presented. This unsymmetrical diboron reagent is prepared from the sp²-sp³ hybridized diboron compound, and it reacts with a series of 1,1- disubstituted allenes chemo- …
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Activation of diboron reagents: The development of mild conditions for the synthesis of unique organoboron compounds
… corresponding boratohomoenolates. A unique β,β-diboration of an α,β-acetylenic ketone was also discovered. The scope of PDIPA diboron reactions was then expanded to a set of substrates with a more complex structural backbone. Allenoates are α,β,γ-unsaturated esters with orthogonal pi systems, …