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In recent studies, ammonia, a chromogenic reagent, has been used to detect the solubility product constant of copper(II) iodate via colorimetry. However, the use of ammonia can result in environmental pollution. As an alternative, glycine can be used as the chromogenic reagent. In this study, the reaction between glycine and copper(II) ions was investigated in detail. The reaction time and glycine concentration were optimized by acquiring UV-Vis spectra, determining the appropriate conditions for reacting the copper(II) complex with glycine. The absorption intensities at 640 nm for solutions of copper(II) ions at different concentrations were measured, and the concentration of copper(II) ions in saturated copper(II) iodate was determined by using the standard curve. The solubility product constant was calculated, which was close to the literature value. The release of corrosive and volatile gas was prevented in this experiment, and the complex solution could be recycled to prevent environmental pollution. Therefore, this method is green and applicable for use in basic experimental teaching activities. [ABSTRACT FROM AUTHOR]

On account of long wavelength emission and high stability, a hemi-cyanine skeleton of 2,3,3-trimethyl-1-(3-sulfopropyl)-3H-benzo[f]indolinium was condensed with 6-hydroxy-7-morpholin-4-yl-methyl-naphthalene-2-carbaldehyde in the presence of acetic anhydride. The new probe displays a sensitive absorption and fluorescence according to the pH value changes and exhibits an excellent linearity of the relative emission intensity (I670/I580) vs. pH in the pH range of 7.0–9.5 with a correlation coefficient of 0.993. Moreover, compared to the commercialized LysoTracker Green DND-26 the probe is targeting to the lysosomal imaging in HeLa cells and, thus, can be further used as a near-infrared fluorescent probe for cellular research. [ABSTRACT FROM AUTHOR]

The first example of UV light-induced, copper-catalyzed regio- and stereoselective decarboxylative coupling of α,β-unsaturated acids with alkyl iodides was reported. Under standard conditions, the 1°, 2°, and 3° alkyl iodides proceeded smoothly with the E-selective alkenes obtained in uniformly good yields and high stereoselectivities. [ABSTRACT FROM AUTHOR]

The title compound, C20H19BrO2S, was synthesized by the cyclization of 1-(4-bromo­phenyl)-4-(3,4-di­methoxy­phenyl)-2,3-di­methyl­butane-1,4-dione with 2,4-bis(4-methoxy­phenyl)-2,4-disulfanyl­ene-1,3,2,4-di­thia­diphosphetane. The dimethoxyphenyl and bromophenyl rings make dihedral angles of 28.4 (3) and 45.0 (3)°, respectively, with the thiophene ring. The bond lengths are unexceptional. [ABSTRACT FROM AUTHOR]

The title compound, C26H31NO5S, was synthesized by the palladium-catalyzed coupling reaction of 2-(3-bromo-4-methoxy­phenyl)-3,4-di­methyl-5-(3,4,5-tri­methoxy­phenyl)­thio­phene and morpholine. This mol­ecule is composed of four rings. Two benzene rings are linked by a thio­phene moiety which is planar. The morpholine group has a chair conform­ation. [ABSTRACT FROM AUTHOR]