Lactols and cyclic hemiaminals were directly used in a one-pot organo/organo dual catalytic system induced [2+2+2] tandem reaction for the asymmetric construction of six-membered carbocycles. The enamine-based stereoselective Michael addition of lactols or cyclic hemiaminals to electron-deficient olefinic oxindole motifs provided chiral C4 components, which were further combined with triethylam...

Novel organo-Eu(III) luminophores, Eu(hfa)x(CPO)y and Eu(hfa)x(TCPO)y (hfa: hexafluoroacetylacetonate, CPO: 4-carboxyphenyl diphenyl phosphine oxide, TCPO: 4,4',4″-tricarboxyphenyl phosphine oxide), were synthesized by the complexation of Eu(III) ions with hfa moieties and CPO or TCPO ligands. The thermal and luminescent stabilities of the luminophores are extremely high. The decomposition temp...

The sorption affinity of iodide on organo-bentonite, modified with hexadecyl pyridinium (HDPy), was investigated the iodine–starch method coupled UV/Vis absorption spectroscopy. complex optimized in terms reaction time and sample compositions, based absorbance. batch experiment for organo-bentonites, using two different loading amounts HDPy, conducted to analyze influence equilibrium time, liqu...

Bigels are unique two-phase systems that have recently been presented as a structured method for active ingredient application. The purposes of the current study were to develop and characterize bigel formulations containing loxoprofen. They benefits both hydrogel organo-gel. In order enhance penetration, pluronic lecithin was added form organo-gel, HPMC hydrogel, which properly hydrates stratu...

By A. J. NORONHA, m.d., Hoiiy. Physician, J. J. Hospital, Bombay. TwEXvE bottles were supplied for trial in my wards of the preparation named Bazogen, purporting to consist of the extract of Spleen, Pancreas, Thyroid, and Adrenal. The supply of the drug was limited, and a fair trial could not be given. The accompanying charts show that a drop in the temperature occurs even in severe cases with ...

Sorption of organic molecules to mineral surfaces is an important control upon the aquatic carbon (C) cycle. Organo-mineral interactions are known to regulate the transport and burial of C within inland waters, yet the mechanisms that underlie these processes are poorly constrained. Streamwater contains a complex and dynamic mix of dissolved organic compounds that coexists with a range of organ...