01266nas a2200169   4500008004100000022001400041245014400055210006900199260011000268300001400378490000600392520050500398100002600903700002200929700001800951856012700969       2012                        eng d  a2046-206900aFeCl3/Montmorillonite K10 as an efficient catalyst for solvent-free aza-Michael reaction between amine and alpha,beta-unsaturated compounds0 aFeCl3Montmorillonite K10 as an efficient catalyst for solventfre  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUN  a7061-70650 v23 a<p>A highly efficient, inexpensive and greener protocol for aza-Michael addition reaction of different aromatic and aliphatic/cyclic amines to alpha,beta-unsaturated compounds using a FeCl3/MontK10 catalyst under solvent-free conditions has been developed. The Michael addition products are obtained in good to excellent yields. The catalyst was insensitive to moisture and it also showed excellent reusability in the reaction. Its high activity is attributed mostly to redox properties of FeCl3.</p>1 aChoudhary, Vasant, R.1 aDumbre, Deepa, K.1 aPatil, S., K.  uhttps://library.ncl.res.in/content/fecl3montmorillonite-k10-efficient-catalyst-solvent-free-aza-michael-reaction-between-001738nas a2200229   4500008004100000022001400041245010400055210006900159260007300228300001000301490000800311520087700319653002301196653002301219653001601242100002201258700002401280700001801304700002601322700002801348856013201376       2014                        eng d  a0926-860X00aMesoporous, ligand free Cu-Fe solid catalyst mediated CS cross coupling of thiols with aryl halides0 aMesoporous ligand free CuFe solid catalyst mediated CS cross cou  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcAPR  a54-600 v4763 a<p>Solid catalyst derived from Cu-Fe hydrotalcite was demonstrated to be a novel, ligandless, efficient and environmentally greener catalyst for the synthesis of diaryl sulfurs from the C-S cross coupling reaction of substituted thiols with different aryl halides. This catalyst has shown higher product yield in the presence of dimethylformamide (as a solvent) and K2CO3 (as a base) at 120 C. Influence of different solvents and bases on the product yield has also been investigated. The catalyst can be easily separated from the reaction mixture, simply by filtration and reused several times without a significant loss of its activity. The catalyst has been fully characterized for its surface and bulk properties and the mesoporous CuO:Fe2O3 phase was attributed for its catalytic activity towards S-arylation reactions. (C) 2014 Elsevier B.V. All rights reserved.</p>10aC-S cross coupling10aCu-Fe-hydrotalcite10aS-arylation1 aDumbre, Deepa, K.1 aSelvakannan, P., R.1 aPatil, S., K.1 aChoudhary, Vasant, R.1 aBhargava, Suresh, Kumar  uhttps://library.ncl.res.in/content/mesoporous-ligand-free-cu-fe-solid-catalyst-mediated-cs-cross-coupling-thiols-aryl-halides-0