Chiral tertiary diamines in asymmetric synthesis

JC Kizirian - Chemical reviews, 2008 - ACS Publications
In the development of new systems for asymmetric synthesis it has always been a big
challenge to obtain optically active compounds with good yields and selectivities. For this …

Die chemie vicinaler diamine

D Lucet, T Le Gall, C Mioskowski - Angewandte Chemie, 1998 - Wiley Online Library
Vor allem bei enantioselektiven Synthesen werden vicinale Diamine (1, 2‐Diamine) 1 und
Verbindungen, die auf einfachem Weg aus diesen erhalten werden können–wie 1, 2 …

NMR determination of enantiomeric purity

D Parker - Chemical Reviews, 1991 - ACS Publications
Over the past decade there has been a great surge of interest in enantioselective synthesis
which has led to an increased demand for accurate, reliable, and con-venient methods of …

[图书][B] Discrimination of chiral compounds using NMR spectroscopy

TJ Wenzel - 2007 - books.google.com
A comprehensive overview of the use of NMR spectroscopy for chiral discrimination
Discrimination of Chiral Compounds Using NMR Spectroscopy concisely covers the broad …

Enantioselective organocatalytic conjugate addition of aldehydes to vinyl sulfones and vinyl phosphonates as challenging michael acceptors

S Sulzer‐Mossé, A Alexakis, J Mareda… - … A European Journal, 2009 - Wiley Online Library
Chiral framework: Chiral amines with pyrrolidine frameworks catalyze the enantioselective
conjugate addition of a wide range of aldehydes to various vinyl sulfones and vinyl …

Chiral acetals in asymmetric synthesis

A Alexakis, P Mangeney - Tetrahedron: Asymmetry, 1990 - Elsevier
H. 6. Reactions with a,~-ethylenic acetals and ketals 11.7. Directing strength of the acetal
template 11.8. Miscellaneous cleavages IlL REACTIONS WITHOUT RING CLEAVAGE III. 1 …

Nitronyl and imino nitroxides: improvement of Ullman's procedure and report on a new efficient synthetic route

C Hirel, KE Vostrikova, J Pécaut… - … A European Journal, 2001 - Wiley Online Library
The synthesis of nitronyl and imino nitroxides has been reexamined with the aim of both
increasing yields and of offering opportunities for new structures. The conditions for the …

Asymmetric carbolithiation of cinnamyl derivatives in the presence of (-)-sparteine.

S Klein, I Marek, JF Poisson… - Journal of the American …, 1995 - ACS Publications
Carbometalation of a 1, 2-disubstituted olefin leads to the formation of a new organometallic
species bearing two contigu-ous stereogenic centers. 1 Although the carbolithiation reaction …

The Bull-James assembly: Efficient iminoboronate complex formation for chiral derivatization and supramolecular assembly

RR Groleau, TD James, SD Bull - Coordination Chemistry Reviews, 2021 - Elsevier
Chiral molecules are widely used in many fields of research and so practically simple,
accurate methods to measure their enantiopurities are required. This review's initial focus is …

A new reagent for the determination of the optical purity of primary, secondary, and tertiary chiral alcohols and of thiols

A Alexakis, S Mutti, P Mangeney - The Journal of Organic …, 1992 - ACS Publications
A new reagent is described for the determination of the enantiomeric excess of chiral
alcohols. This derivatizing agent (22) is a diazaphospholidine, easily prepared from …