Authors:Daniel Blanco-Ania and Floris P. J. T. Rutjes
While continuous-flow chemistry is steadily increasing its footprint in academic research and in the manufacturing of pharmaceutical intermediates and fine chemicals, the attention for flow chemistry in educational programs is on average rather limited. This account is meant to provide a personal overview of the possibilities to address the involvement of flow chemistry in the various stages of chemical education.
Authors:Gellért Sipos, Viktor Gyollai, Tamás Sipőcz, György Dormán, László Kocsis, Richard V. Jones, and Ferenc Darvas
The atom economy concept is one of the earliest recognition for green and sustainable aspects of organic synthesis. Over the years, novel technologies emerged that made this important feature of reactions into practice. Continuous-flow devices increased the efficiency of the chemical transformations with novel process windows (high T, high p and heterogeneous packed catalysts etc.) and increased safety which turned the attention to reexamine old, industrial processes. Oxidation can be performed under flow catalytic conditions with molecular oxygen; alcohols can be oxidized to carbonyl compounds with high atom economy (AE = 87 %). Using O2 and 1 % Au/TiO2, alcohol oxidation in flow was achieved with complete conversion and >90 % yield. N-alkylation is another good example for achieving high atom economy. Under flow catalytic conditions (Raney Ni), amines were successfully reacted with alcohols directly (AE = 91 %) with >90 % conversion and selectivity. In both examples, the effective residence time was less than 1 min. These two examples demonstrate the significant contribution of flow technology to the realization of key principles in green and sustainable chemistry.
waste: an example of cocoa butter triglyceride ” C. Schotten , D. Plaza , S. Manzini , S. P. Nolan , S. V. Ley , D. L. Browne , A. Lapkin ACS SustainableChemistry & Engineering 2015 , 3 , 1453 – 1459
“ Construction of 2
Authors:C. Munteanu, M. Caldararu, V. Bratan, P. Yetisemiyen, G. Karakas, and N. I. Ionescu
, Hornoiu C , Postole G , Dragan M , Carata M , Ionescu NI , Petre A , Auroux A ( 2001 ) Catalysis for sustainablechemistry: structure, processes and industrial applications . In: Bonev C , Petrov L (eds) Proceedings of