Journal of the Chinese Chemical Society

Zinc chloride anhydrous has been used as an efficient and new catalyst for conversion of ketones and aldehydes to corresponding gem-dihydroperoxides by aqueous hydrogen peroxide (30%) in room temperature with excellent yields and notable reaction times.

An ultrasound assisted emulsification microextraction (USAEME) is successfully used for extraction and determination of trace amount of iron in water and tea samples, followed by flame atomic absorption spectroscopy (FAAS). The linear range of the method is sufficient for the determination of iron in some environmental samples and was successfully used in the determination of total iron in river waters, tap waters and tea samples.

The Pd-catalyzed coupling reaction of 4-ethynylaniline with the 2-bromo NCTPP and a subsequent demetalation reaction obtained para-ethynyl aniline substitution on the outer carbon of the inverted pyrrole ring on NCTPP while the tetrakis(4-aminophenyl) N-confused porphyrin was synthesized from the standard SnCl₂ reduction on p-nitrophenyl substituted NCTPP.