نتایج جستجو برای: 3 g chromenes
تعداد نتایج: 2124263 فیلتر نتایج به سال:
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This research describes application of a mesoporous nanostructured material based on basic ionic liquid anchored to silica, i.e. nano-2-(dimethylamino)-N-(silica-n-propyl)-N,N-dimethylethanaminium chloride {nano-[DMSPDE][Cl]}, as a highly effective and heterogeneous nanocatalyst for the production of 2-amino-4H-chromenes. The one-pot multi-component ...
A new efficient enantioselective conjugate addition strategy has been disclosed to rapidly construct 2-amino-3-nitrile-chromene complexes via a multi-hydrogen-bond cooperative activation model.
Trajectory planning is commonly used as part of a local planner in autonomous driving. This paper considers the problem continuous-curvature-rate trajectory between fixed start and goal states that minimizes tunable trade-off passenger comfort travel time. The an instance infinite dimensional optimization over two continuous functions: path velocity profile. We propose simplification this facil...
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