All
reagents purchased
were of analytical or reagent grade purity and were used as purchased
prior to experimentation. Anhydrous N,N dimethylformamide (99.8%) was obtained from Acros Organics, a division
of Thermo Fischer Scientific. Buffers for the calibration of the pH
electrode were from Thermo Scientific, Waltham MA. Quercetin was purchased
from INDOFINE Chemicals Inc. (Hillsborough, NJ). 4-Dimethyl aminopyridine,
hydrogen tetrachloroaurate (HAuCl4·3H2O),
and trimethylsilyl-bromide were purchased from Sigma-Aldrich, Milwaukee,
WI. Dimethyl sulfoxide-d6 was from Cambridge
Isotope Laboratories, Inc. MA. Dibenzyl phosphite, acetonitrile, carbon
tetrachloride (CCl4), N,N-diisopropylethylamine, and dichloro methane were purchased from
Sigma (St. Louis, MO). Methanol, hexane, ethyl acetate, sodium chloride
(NaCl), anhydrous sodium sulfate (Na2SO4), and
potassium dihydrogen phosphate (KH2PO4) were
purchased from Fisher Scientific, Pittsburg, PA. Nanopure water with
a specific resistivity of 18 MΩ was used in the preparation
of reagents. All of the reactions involving moisture or air-sensitive
reagents were carried out under Ar or N2 atmosphere. All
chemicals were of analytical or reagent grade and were used without
further purification.
reagents purchased
were of analytical or reagent grade purity and were used as purchased
prior to experimentation. Anhydrous N,N dimethylformamide (99.8%) was obtained from Acros Organics, a division
of Thermo Fischer Scientific. Buffers for the calibration of the pH
electrode were from Thermo Scientific, Waltham MA. Quercetin was purchased
from INDOFINE Chemicals Inc. (Hillsborough, NJ). 4-Dimethyl aminopyridine,
hydrogen tetrachloroaurate (HAuCl4·3H2O),
and trimethylsilyl-bromide were purchased from Sigma-Aldrich, Milwaukee,
WI. Dimethyl sulfoxide-d6 was from Cambridge
Isotope Laboratories, Inc. MA. Dibenzyl phosphite, acetonitrile, carbon
tetrachloride (CCl4), N,N-diisopropylethylamine, and dichloro methane were purchased from
Sigma (St. Louis, MO). Methanol, hexane, ethyl acetate, sodium chloride
(NaCl), anhydrous sodium sulfate (Na2SO4), and
potassium dihydrogen phosphate (KH2PO4) were
purchased from Fisher Scientific, Pittsburg, PA. Nanopure water with
a specific resistivity of 18 MΩ was used in the preparation
of reagents. All of the reactions involving moisture or air-sensitive
reagents were carried out under Ar or N2 atmosphere. All
chemicals were of analytical or reagent grade and were used without
further purification.