Efficient Reductions of Nitroarenes with SnCl<sub>2</sub>in Ionic Liquid
作者:Prithwiraj De
DOI:10.1055/s-2004-830847
日期:——
Mild, eco-friendly and fast reductions of nitroarenes to aminoarenes have been accomplished using stannous chloride dihydrate in ionic liquid tetrabutylammonium bromide (TBAB) that provides unsolvated nucleophilic bromide ion. Improved yields, lower reaction time, generality, and a less demanding work-up procedure are the notable features of this protocol.
Studies on Regioselectivity of Nitration of Coumarins with Cerium(IV) Ammonium Nitrate: Solid-State Nitration of 6-Hydroxy-Coumarins on Montmorillonite K-10 Clay Support Under Microwave Irradiation
作者:Nemai C. Ganguly、Mrityunjoy Datta、Prithwiraj De、Romaprosad Chakravarty
DOI:10.1081/scc-120015821
日期:2003.1.4
in acetic acid and acetonitrile in acceptable-to-excellent yields. Acetonitrile was found to be a better solvent for regioselective nitration than acetic acid. Use of CAN on montmorilloniteK-10 clay under microwaveirradiation for expeditious solvent-free regioselective nitration has been revealed for the first time.
Discovery of a novel calcium-sensitive fluorescent probe for α-ketoglutarate
作者:Lin-lin Gan、Lin-hai Chen、Fa-jun Nan
DOI:10.1038/aps.2017.75
日期:2017.12
recognition process. Compared to the initial weak fluorescence, a remarkable 7.6-fold enhancement in fluorescence intensity (I/I0 at 495 nm) was observed for the conditions in which the probe (1 μmol/L), α-KG (50 μmol/L), and Ca2+ (100 μmol/L) were incubated at 30 °C in EtOH. The probe displayed good selectivity for α-KG even in an environment with an abundance of amino acids and other interfering species