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Control over molecular motion using the cis–trans photoisomerization of the azo group
This work describes selected examples of systems containing an azobenzene moiety and their motions and geometrical changes caused by external stimuli.
Synthesis of azobenzenes: the coloured pieces of molecular materials.
  • E. Merino
  • Chemistry
    Chemical Society reviews
  • 20 June 2011
This critical review covers the various synthetic methods reported on azo compounds with special emphasis on the more recent ones and their mechanistic aspects (170 references).
Cyclization cascades via N-amidyl radicals toward highly functionalized heterocyclic scaffolds.
A silver-catalyzed radical cascade process involving the sequential formation of two new C-C bonds and one C-N bond, a formal 1,4-aryl migration, and desulfonylation of the starting material explains the regioselective formation of densely functionalized heterocycles in a straightforward manner.
Addition of CF3 across unsaturated moieties: a powerful functionalization tool
This review summarizes recent methodologies for the simultaneous formation of C–CF3 and C–C or C–heteroatom bonds by formal addition reactions to alkenes.
Copper-catalyzed one-pot trifluoromethylation/aryl migration/desulfonylation and C(sp2)-N bond formation of conjugated tosyl amides.
A novel copper-catalyzed one-pot trifluoromethylation/aryl migration/desulfonylation and C(sp(2))-N bond formation with conjugated tosyl amides as starting materials is presented here. The reaction
Metal-free aryltrifluoromethylation of activated alkenes.
With this method, trifluoromethylated isoquinolinediones, spirobicycles, oxindoles, and α-aryl-β-trifLUoromethylamides were obtained with high control of the regioselectivity.
Arylphosphonylation and arylazidation of activated alkenes.
The difunctionalization of alkenes by a tandem process that involves radical addition, 1,4-aryl migration, and desulfonylation generates α-aryl-β-heterofunctionalized amides bearing a quaternary stereocenter when the substituent on the nitrogen atom is an aryl group.
Asymmetric Ni-catalyzed Radical Relayed Reductive Coupling.
Multiple transformations of the chiral amides obtained in this process showcase the potential of this new methodology for the straightforward assembly of chiral building blocks such as primary and secondary amines, oxazolines, etc. highlighting its synthetic utility.
Stereoselective synthesis of highly functionalized indanes and dibenzocycloheptadienes through complex radical cascade reactions.
Two highly stereoselective radical-mediated syntheses of densely functionalized indanes and dibenzocycloheptadienes from ortho-vinyl- and ortho-vinylaryl-substituted N-(arylsulfonyl)-acrylamides,