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Consortium of Swiss Academic Libraries

Conflict-Free Chromatic Art Gallery Coverage

Bärtschi, Andreas ; Suri, Subhash

In: Algorithmica, 2014, vol. 68, no. 1, p. 265-283

Consortium of Swiss Academic Libraries

A Giambelli formula for even orthogonal Grassmannians

Buch, Anders Skovsted ; Kresch, Andrew ; Tamvakis, Harry

In: Journal für die reine und angewandte Mathematik (Crelles Journal), 2015, vol. 2015, no. 708, p. 17-48

Université de Fribourg

Application of photoclick chemistry for the synthesis of pyrazoles via 1,3‐dipolar cycloaddition between alkynes and nitrilimines generated in situ

Remy, Richard ; Bochet, Christian G.

In: European Journal of Organic Chemistry, 2018, vol. 2018, no. 3, p. 316–328

The photochemical extrusion of gaseous nitrogen from 2,5-disubstituted tetrazoles to generate reactive nitrilimines in situ represents an efficient and attractive way to form dipoles that can be used to provide useful chemicals via 1,3-dipolar cycloadditions. The concept of “photoclick chemistry” already inspired numerous researchers, who exploited photochemical processes involving...

Université de Fribourg

Photochemical C–H activation: generation of indole and carbazole libraries, and first total synthesis of clausenawalline D

Alimi, Isak ; Remy, Richard ; Bochet, Christian G.

In: European Journal of Organic Chemistry, 2017, vol. 2017, no. 22, p. 3197–3210

The photolysis of N-aryltriazoles and N-arylbenzotriazoles leads to indoles and carbazoles, respectively. Because libraries of triazoles can be accessed rapidly, for example by the copper-catalyzed [3+2] cycloaddition reaction between alkynes and azides, this reaction allows the preparation of indoles in a single operation, by the simultaneous photolysis of the precursor library. As an example of...

Consortium of Swiss Academic Libraries

Photochemical release of various functional groups

Bochet, Christian G.

In: Pure and Applied Chemistry, 2006, vol. 78, no. 2, p. 241-247