A critical review on the improvement of penetration theory is presented in this work. The volumetric liquid-phase mass transfer coefficients kLa seven different liquids (1-butanol, 2-propanol, anilin, decalin, nitrobenzene, tetralin, and ethylene glycol) aerated with air a small bubble column (BC) (inner diameter: 0.095 m) were measured at ambient conditions further analyzed. It was found that ...

The stereoselective synthesis of (1S,2S,5R)-5-((4-methoxybenzyl)oxy)-2-methyl-8-methylene-1,2,4a,5,6,7,8,8a-octahy-dronaphthalene-1-carboxylic acid (2) is described, which comprises the bicyclic core structure natural product amycolamicin (1). ring-system was established via an intramolecular Diels-Alder reaction a triene carrying SuperQuat chiral auxiliary. latter could be readily removed by m...