Synthesis of piperidine and pyrrolidine derivatives by electroreductive cyclization of imine with terminal dihaloalkanes in a flow microreactor

• Yuki Naito,
• Naoki Shida and
• Mahito Atobe

Beilstein J. Org. Chem. 2022, 18, 350–359, doi:10.3762/bjoc.18.39

• sandwiched together. After connecting Teflon tubings to the inlets and outlet, the reactor was sealed with epoxy resin (Supporting Information File 1, Figure S2). Thus, the dimensions of the flow channel in the reactor are 1 cm width and 3 cm length, and the channel height corresponds to the thickness of the

A method to determine the correct photocatalyst concentration for photooxidation reactions conducted in continuous flow reactors

• Clemens R. Horn and
• Sylvain Gremetz

Beilstein J. Org. Chem. 2020, 16, 871–879, doi:10.3762/bjoc.16.78

• can be delivered to the catalyst. These limitations are defined by the photoflow setup, specifically the channel height and the emission peak of the light source. This method was tested and shown to work well for three catalysts with different absorption properties through using LEDs with emission

• maxima close to the absorption maximum of each catalyst. Keywords: catalyst concentration; channel height; flow chemistry; photooxidation; Introduction The renaissance of photochemistry that occurred over the last decade has been described as “old light through new windows”, and much of this work

• catalyst begins with recognizing how the law is applied and what the differences from the batch approach that it describes are [32]. A flow reactor has a channel height that is a well-defined rectangle, allowing it to be used synonymously to the path length of the light. However, since the path length of

A practical microreactor for electrochemistry in flow

• Kevin Watts,
• William Gattrell and
• Thomas Wirth

Beilstein J. Org. Chem. 2011, 7, 1108–1114, doi:10.3762/bjoc.7.127

• blockage in the channel. It is also possible to change the internal volume of the channel quickly by changing the channel height through the foil thicknesses. Experimental General: Melting points were obtained in open capillary tubes and are uncorrected. 1H NMR and 13C NMR spectra were recorded on a AV-400