yttrium‐pillared silicotungstate dimer (see picture) catalyzes the cyanosilylation of structurally diverse ketones and aldehydes with trimethylsilyl cyanide (TMSCN). The reactions proceed selectively and afford the corresponding cyanohydrin trimethylsilyl ethers. The catalytic performance is significant, in particular for aldehydes, with a turnover number of 18 000 and a turnover frequency of 540 000 h−1
Gold(III)-Catalyzed Cyanosilylation of Ketones and Aldehydes
作者:Insung Choi、Hee-Seung Lee、Woo Cho、Sung Kang、Amiya Medda、Jungkyu Lee
DOI:10.1055/s-2008-1032154
日期:2008.2
efficient catalyst for the cyanosilylation of various ketones and aldehydes. The reactions were complete within 30 minutes at room temperature in the presence of only one mol% gold(III) chloride, yielding the corresponding cyanohydrin trimethylsilyl ethers in very good yields. The isolated yields for the reactions of ketones were up to 98%, and the reactions of aldehydes gave 100% conversion, as monitored
Indium metal–organic frameworks as catalysts in solvent-free cyanosilylation reaction
作者:Lina María Aguirre-Díaz、Marta Iglesias、Natalia Snejko、Enrique Gutiérrez-Puebla、M. Ángeles Monge
DOI:10.1039/c3ce41123k
日期:——
Two new Indium MOFs with the bending multicarboxylateligand H2dpmda as a linker and different N-donor ancillaryligands were obtained; the two compounds are isoreticular with 2D-hcb uninodal 3-connected nets. Comparison of their activity in cyanosilylation reactions with another eight In-MOFs is also reported. Eight out of the ten resulted in being good catalysts under mild and environmentally friendly
Toward understanding the structure–catalyst activity relationship of new indium MOFs as catalysts for solvent-free ketone cyanosilylation
作者:Lina María Aguirre-Díaz、Marta Iglesias、Natalia Snejko、Enrique Gutiérrez-Puebla、M. Ángeles Monge
DOI:10.1039/c4ra13924k
日期:——
cyanosilylation of carbonyl compounds. For acetophenone: (i) the coordination number and μ-OH groups presence seem to be decisive factors to obtain a better catalytic behavior and (ii) the presence of Lewis base moieties (CO groups not coordinated to indium cation), besides the Lewis acid sites, creates a two-component catalytic system, based on the “dual activation” phenomenon that makes InPF-15 the best catalyst
Exploring physical and chemical properties in new multifunctional indium-, bismuth-, and zinc-based 1D and 2D coordination polymers
作者:G. E. Gomez、R. F. D'vries、D. F. Lionello、L. M. Aguirre-Díaz、M. Spinosa、C. S. Costa、M. C. Fuertes、R. A. Pizarro、A. M. Kaczmarek、J. Ellena、L. Rozes、M. Iglesias、R. Van Deun、C. Sanchez、M. A. Monge、G. J. A. A. Soler-Illia
DOI:10.1039/c7dt04287f
日期:——
performed on two representative low-dimensional compounds in order to find the relationships between their structural features and their intrinsic mechanical properties (hardness and elasticity). The solid-state photoluminescence (SSPL) properties were also studied in terms of excitation, emission, lifetimes values, and CIE chromaticites. Moreover, the heterogeneous catalytic activities of the compounds