Abstract An improved chemical process has been developed for the synthesis of (S,S)-DACH-Ph Trost ligand. The amidation 2-diphenylphosphinylbenzoic acid and (S,S)-diaminocyclohexane is promoted by stoichiometric CDI catalytic imidazole hydrochloride. resulting product, ligand, isolated as a white solid in 80% yield with >99% ee simple filtration without column chromatography. current facile ...

- This study was conducted treating with Milk of Lime to reach different pH levels (T1- Initial pH, T2, T3 and T4 6.5, 7.5 8.5 respectively) determine the optimum pre-liming which could result in best cane juice clarification Sri Lankan sugar industries. The experiment design used RCBD five replicates. ANOVA followed by Duncan’s Multiple Range Test (DNMRT) were identify significant mean differe...

This study aimed to survey the chemical change and germination effect of anaerobic digestate after pH adjustment aerobic treatment. The amount ammonia (NH3) in swine slurry digestates (SS AD) 7.0 6.5 were lower than that un-adjusted digestate. Especially, with had lowest NH3 generation. NH4-N has been gradually decreasing untreated digestate, however, showed no significant changes. In tests dif...