A series of custom-designed, high yield, isoskeletal tetranuclear Zn/4f coordination clusters showing high efficiency as catalysts with low catalytic loadings in Friedel-Crafts alkylation are described for the first time. The possibility of altering the 4f centers in these catalysts without altering the core topology allows us to further confirm their stability via EPR and NMR, as well to gain ...

The title compound, [Fe3(C5H5)3(C15H12OP)] H2O or Fc3PO H2O, was obtained as red crystals from the Friedel±Crafts alkylation reaction of PCl3 and ferrocene. Torsion angles (O PÐCÐFe/C) range fromÿ45.39 (9) toÿ56.11 (14) . The structure is stabilized by intermolecular hydrogen bonds [H O = 2.10 (3) and 2.00 (4) AÊ ], forming dimeric structures between pairs of O PFc3 and water molecules. A theor...

In the presence of a peptide catalyst and the oxidative enzyme laccase, a one-pot sequential reaction including a Friedel-Crafts-type alkylation of α,β-unsaturated aldehydes followed by an α-oxyamination was realized. The reaction in aqueous solvent to promote the enzymatic oxidation, and the use of a peptide catalyst compatible with such conditions, were essential. The present sequential react...

A highly enantioselective Friedel-Crafts alkylation of electron-rich aromatic nucleophiles catalyzed by scandium(III) triflate-pyridyl(bis)oxazoline complexes has been accomplished. The reaction involves alpha,beta-unsaturated acyl phosphonates as electrophiles and primarily substituted indoles as nucleophiles. The reactive acyl phosphonate product is converted to the corresponding ester or ami...

We have designed a new hypercrosslinked supermicroporous polymer (HMP-1) with a BET surface area of 913 m(2) g(-1) by FeCl3 via a catalyzed Friedel-Crafts alkylation reaction between carbazole and α,α'-dibromo-p-xylene. Upon sulfonation HMP-1 yielded a very efficient solid acid catalyst for the production of biodiesels via esterification/transesterification of free fatty acids (FFA)/esters at r...

A practical and effective trifluoromethanesulfonic acid (TfOH)-catalyzed cyclooligomerization strategy was developed for the synthesis of functionalized pillar[n]arenes and copillar[5]arenes from 1,4-dialkoxybenzenes with paraformaldehyde under mild reaction conditions, and the reaction mechanism of solution-phase catalytic synthesis of pillararenes was investigated by room-temperature X-band E...

The Friedel-Crafts alkylation constitutes one of the most important reactions for formation carbon-carbon bonds. Here, we report using squalene-hopene cyclases, which provides a biological alternative to traditional strategy. cyclase from Alicyclobacillus acidocaldarius (AacSHC) and variants have been demonstrated broad substrate reaction scope, making them valuable potential applications in bi...