Routine Use of Natural Abundance Deuterium NMR in a Polypeptidic Chiral Oriented Solvent for the Determination of the Enantiomeric Composition of Chiral Building Blocks
[reaction: see text] Naturalabundancedeuterium 2D NMR spectroscopy in chiral liquid crystal was successfully used to efficiently analyze the enantiomeric composition of organic chiral building blocks involved in the syntheses of natural and synthetic bioactive products. The results reported here emphasize the high potential of this analytical strategy and prove its applicability for routinely determining
The catalytic asymmetric synthesis of (-)-(R)-nostrenol is described in five steps starting from commercially available 1-pentyne. The key steps are a Noyori catalytic and asymmetric hydrogen transfer and a Cp2TiCl2 catalyzed hydroalumination. (C) 2004 Elsevier Ltd. All rights reserved.
WO2023/150236
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Synthesis of the C7–C24 fragment of (−)-Macrolactin F
作者:Roberta A. Oliveira、Juliana M. Oliveira、Luis H.S. Rahmeier、Joao V. Comasseto、Joseph P. Marino、Paulo H. Menezes
DOI:10.1016/j.tetlet.2008.07.113
日期:2008.9
An enantioselective and convergent synthesis of the C7–C24 fragment of Macrolactin F was achieved from four main fragments. A hydrotelluration/transmetalation sequence was used to install the E,Z diene present in the molecule, while a hydrozirconation/transmetalation sequence was used to connect two advanced intermediates.