Enantioselective cyclopropane synthesis using the chiral carbene complexes (SFeSC)- and (RFeSC)-(C5H5)(CO)(Ph2R*P)Fe:CHCH3+ (R* = (S)-2-methylbutyl). Role of metal vs. ligand chirality in the optical induction

1983 ◽  
Vol 105 (22) ◽  
pp. 6721-6723 ◽  
Author(s):  
M. Brookhart ◽  
D. Timmers ◽  
J. R. Tucker ◽  
G. D. Williams ◽  
G. Ronald Husk ◽  
...  
Keyword(s):  
Carbene Complexes ◽  
Optical Induction

scholarly journals Di-tungsten Bis-carbene Complexes Linked by Condensed Heteroaromatic Spacers

2007 ◽  
Vol 62 (3) ◽  
pp. 419-426 ◽  
Author(s):  
Marilé Landmana ◽  
Helmar Görls ◽  
Chantelle Crause ◽  
Hubert Nienaber ◽  
Andrew Olivier ◽  
...  
Keyword(s):  
Structural Features ◽  
Crystallographic Data ◽  
Reaction Conditions ◽  
Carbene Complexes

The 2,7-dilithiated substrates of 3,6-dimethylthieno[3,2-b]thiophene, N,N′-dimethylpyrrolo[3,2- b]pyrrole and N-methylthieno[3,2-b]pyrrole were reacted with W(CO)6 to give, after subsequent alkylation with Et3OBF4, the ditungsten biscarbene complexes [(CO)5W{C(OEt)XXC(OEt)} W(CO)5] (XX = condensed heteroaromatic spacers). Sites of attack during the dilithiation of the condensed rings were studied and compared, and the yields of the desired ditungsten biscarbene complexes optimized by changing the reaction conditions according to the role of the heteroatoms in the rings. The crystallographic data of the three ditungsten biscarbene complexes are reported and their structural features compared. The methyl substituents on the condensed heteroaromatic rings play an important role in determining the molecular configurations.

Role of imino group in photochemical reactions of Fischer carbene complexes

2006 ◽  
Vol 691 (5) ◽  
pp. 1075-1080 ◽  
Author(s):  
Pedro J. Campos ◽  
Míriam Caro ◽  
Susana López-Sola ◽  
Diego Sampedro ◽  
Miguel A. Rodríguez
Keyword(s):  
Photochemical Reactions ◽  
Fischer Carbene Complexes ◽  
Imino Group ◽  
Carbene Complexes ◽  
Fischer Carbene

Role of Imino Group in Photochemical Reactions of Fischer Carbene Complexes.

ChemInform ◽  
2006 ◽  
Vol 37 (25) ◽  
Author(s):  
Pedro J. Campos ◽  
Miriam Caro ◽  
Susana Lopez-Sola ◽  
Diego Sampedro ◽  
Miguel A. Rodriguez
Keyword(s):  
Photochemical Reactions ◽  
Fischer Carbene Complexes ◽  
Imino Group ◽  
Carbene Complexes ◽  
Fischer Carbene
Sign in / Sign up

Export Citation Format

Share Document