Mechanochemical solid state single electron transfer from reduced organic hydrocarbon for catalytic aryl-halide bond activation
作者:Amit Biswas、Anup Bhunia、Swadhin K. Mandal
DOI:10.1039/d2sc06119h
日期:——
act as a super reductant in the solid state to activate strong bonds by solid-state single electron transfer (SSSET) under the influence of mechanical energy leading to a catalytic strategy based on the mechano-SSSET or mechanoredox process. Here, we investigate the solid-state synthesis of the super electron donor phenalenyl anion in a ball mill and its application as an active catalyst in strong bond
A new, <i>substituted</i> palladacycle for ppm level Pd-catalyzed Suzuki–Miyaura cross couplings in water
作者:Balaram S. Takale、Ruchita R. Thakore、Sachin Handa、Fabrice Gallou、John Reilly、Bruce H. Lipshutz
DOI:10.1039/c9sc02528f
日期:——
an aqueous micellar medium, enabling valued Suzuki–Miyaura couplings to be run not only in water under mild conditions, but at 300 ppm of Pd catalyst. This general methodology has been applied to several targets in the pharmaceutical area. Multiple recyclings of the aqueous reaction mixture involving both the same as well as different coupling partners is demonstrated. Low temperature microscopy (cryo-TEM)
cyclophanes having the pyrene moiety have been synthesized. The fluorescence and phosphorescence properties have been examined in terms of their structure. It has been found out that their charge-transfercomplexes reflect the transannular π-π interaction based on the structure.