One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 141-22-0, Name is (R,Z)-12-Hydroxyoctadec-9-enoic acid, formurla is C18H34O3. In a document, author is Miura, Hiroki, introducing its new discovery. Formula: C18H34O3.
Efficient borylation of sp(3) C-O bonds by supported Au catalysts is described. Au nanoparticles supported on TiO2 showed high activity under mild conditions employing low catalyst loading conditions without the aid of any additives, such as phosphine and bases. A variety of allyl, propargyl, and benzyl substrates participated in the heterogeneously catalyzed reactions to furnish the corresponding allyl, allenyl, and benzyl boronates in high yields. Besides, Au/TiO2 was also effective for the direct borylation of allylic and benzylic alcohols. A mechanistic investigation based on a Hammett study and control experiments revealed that sp(3) C-O bond borylation over supported Au catalysts proceeded through S(N)1′-type mechanism involving the formation of a carbocationic intermediate. The high activity, reusability, and environmental compatibility of the supported Au catalysts as well as the scalability of the reaction system enable the practical synthesis of valuable organoboron compounds.
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Reference:
Chiral Catalysts,
,Chiral catalysts – SlideShare