Cu(I)-PNF, an organic-based nanocatalyst, catalyzed C–O and C–S cross-coupling reactions

Peptide nanofiber has been prepared via a self-assembly protocol and decorated with Cu (I) to prepare a nanostructural catalyst. The catalytic activity of this prepared nano material (Cu (I)-PNF) was examined in Câ O and Câ S cross-coupling reactions. Compared with conventional copper-ligand catalytic systems, CuNP-PNF has unique advantages such as water solubility, high efficiency and low cost, which makes it a highly efficient and beneficial catalyst to reuse in cross coupling reactions.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author

4,6-Diamino-2-thiopyrimidine-based Cobalt Metal Organic Framework (Co-DAT‐MOF): green, efficient, novel and reusable nanocatalyst for synthesis of multicomponent reactions

Abstract In this study, Co-DAT‐MOF powder was prepared via the solvothermal method using 4, 6-diamino-2-thiopyrimidine as the organic linker and Co(NO3)2·6H2O. The synthesized catalysts are characterized using XRD, FT-IR, TGA, SEM, BET, NH3-TPD, and ICP-OES techniques. SEM analysis clearly indicated the formation of nanosheet microspheres. NH3-TPD-MS was employed as a means of identifying the various strengths of acid sites and their relative abundance in an attempt to explain the effect of the catalyst surface acid sites. We identified a new acidic feature in Co-DAT‐MOF catalyst, related to the presence of desorption peaks in the NH3-TPD profiles. The activity of Co-DAT‐MOF catalyst for the synthesis of multicomponent reactions correlates with lewis acidity. In addition, Co-DAT‐MOF exhibited excellent performance for the synthesis of pyrroloacridine-1(2H)-one and chromeno [2, 3- d] pyrimidin-8-amines, as well as good reusability and recyclability

An efficient one-pot approach to the synthesis of symmetric trithiocarbonates from carbon disulfide and alkyl halides using imidazole

<div><p>A novel method is reported for the synthesis of symmetric dialkyl and cyclic (5, 6 and 7 member) trithiocarbonates from alkyl halides and carbon disulfide in the presence of imidazole and water in DMSO under mild reaction conditions. Imidazole is used as an inexpensive, non-toxic and readily available catalyst in this procedure.</p></div