Research

Our research efforts are directed towards the design of novel chiral organometallic transition metal complexes, which serve as catalysts for the asymmetric synthesis of optically active organic molecules.

 


Publications

 

Tricyclic Sulfoxide–Alkene Hybrid Ligands for Chiral Rh(I) Complexes: The “Matched” Diastereomer Catalyzes Asymmetric C–C Bond Formations
Alexander Nikol, Ziyun Zhang, Ahmed Chelouan*, Laura Falivene, Luigi Cavallo, Alberto Herrera, Frank W. Heinemann, Ana Escalona, Sibylle Frieß, Alexander Grasruck, and Romano Dorta*
Organometallics 2020, 39, 8, 1348–1359
DOI: 10.1021/acs.organomet.0c00094

 


Towards enantiopure macrocyclic trans-dinucleating hemilabile P-Alkene ligands: Syntheses, structures, and Chiral Pd-Complexes
Sibylle Frieß, Alberto Herrera, Anthony Linden, Frank W. Heinemann and Romano Dorta*
J. Organomet. Chemie 2019, 898, 120876
DOI: 10.1016/j.jorganchem.2019.120876

 


Developing Chiral Dibenzazepine-Based S(O)-Alkene Hybrid Ligands for Rh(I) Complexation: Catalysts for the Base-Free Hayashi–Miyaura Reaction
Ahmed Chelouan, Siyuan Bao, Sibylle Frieß, Alberto Herrera, Frank W. Heinemann, Ana Escalona, Alexander Grasruck, and Romano Dorta*
Organometallics 2018, 37, 21, 3983-3992
DOI: 10.1021/acs.organomet.8b00591

 


C2-Symmetric (SO)N(SO) Sulfoxide Pincer Complexes of Mg and Pd: Helicity Switch by Ambidentate S/O-Coordination and Isolation of a Chiral Pd-Sulfenate
Falk W. Seidel, Sibylle Frieß, Frank W. Heinemann, Ahmed Chelouan, Andreas Scheurer, Alexander Grasruck, Alberto Herrera and Romano Dorta*
Organometallics 2018, 37, 7, 1160–1171
DOI: 10.1021/acs.organomet.8b00038

 


Developing P-Stereogenic, Planar–Chiral P-Alkene Ligands: Monodentate, Bidentate and Double Agostic Coordination Modes on Ru(II)
Alberto Herrera, Alexander Grasruck, Frank W. Heinemann, Andreas Scheurer, Ahmed Chelouan, Sibylle Frieß, Falk Seidel and Romano Dorta*
Organometallics 2017, 36, 3, 714–720
DOI: 10.1021/acs.organomet.6b00879

 


s-Block Metal Dibenzoazepinate Complexes: Evidence for Mg-Alkene Encapsulation
Benjamin Freitag, Holger Elsen, Jürgen Pahl, Gerd Ballmann, Alberto Herrera, Romano Dorta* and Sjoerd Harder
Organometallics 2017, 26, 9, 1860-1866
DOI: 10.1021/acs.organomet.7b00200


Chiral Amino-Phosphine and Amido-Phosphine Complexes of Ir and Mg. Catalytic Applications in Olefin Hydroamination
Bernhard Schmid, Sibylle Frieß, Alberto Herrera, Anthony Linden, Frank W. Heinemann, Harald Locke, Sjoerd Harder and Romano Dorta*
Dalton Trans. 2016, 45, 12028-12040
DOI: 10.1039/c6dt01146b

 


Camphopyrazole-Based N,N- and N,P-Ligands and Chiral Complexes of Ni, Pd, and Rh: P–N Bond Activation upon Rh(I) Complexation
Alberto Herrera, Alexander Briceño, Teresa Gonzalez, Anthony Linden, Frank W. Heinemann, Giuseppe Agrifoglio, Jesús Pastrán and Romano Dorta
Tetrahedron-Asymmetry 2016, 27, 16, 759-767
DOI: 10.1016/j.tetasy.2016.06.013

 


Optimized Syntheses of Optically Pure P-Alkene Ligands: Crystal Structures of a Pair of P-Stereogenic Diastereomers
Alberto Herrera, Anthony Linden, Frank W. Heinemann, René-Chris Brachvogel, Max von Delius, Romano Dorta*
Synthesis 2016; 48, 08, 1117-1121
DOI: 10.1055/s-0035-1560410

 


Chiral (SO)–N–(SO) Sulfoxide Pincer Complexes of Mg, Rh, and Ir: N–H Activation and Selective Sulfoxide Reduction upon Ligand Coordination
Harald Locke, Alberto Herrera, Frank W. Heinemann, Sibylle Frieß, Bernhard Schmid and Romano Dorta*
Organometallics 2015, 34, 10, 1925-1931
DOI: 10.1021/acs.organomet.5b00178

 


“Chiral-at-Metal” Hemilabile Nickel Complexes with a Latent d10-ML2 Configuration: Receiving Substrates with Open Arms
Anthony Linden, Ligia Llovera, Julio Herrera, Reto Dorta, Giuseppe Agrifoglio and Romano Dorta*
Organometallics 2012, 31, 6162-6171
DOI: 10.1021/om300484z

 


Hemilabile P-Alkene Ligands in Chiral Rhodium and Copper Complexes: Catalytic Asymmetric 1,4 Additions to Enones
Emma Drinkel, Alexander Briceno, Reto Dorta and Romano Dorta*
Organometallics 2010, 29, 2503-2514
DOI: 10.1021/om100248u


Chiral Dibenzazepine-Based P-Alkene Ligands and Their Rhodium Complexes: Catalytic Asymmetric 1,4 Addition to Enones
Ronaldo Mariz, Alexander Briceno, Reto Dorta, Romano Dorta*
Organometallics 2008, 27, 6605-6613
DOI: 10.1021/om800793q