期刊
TETRAHEDRON LETTERS
卷 46, 期 27, 页码 4643-4646出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2005.04.139
关键词
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A method for the high-yielding preparation of two tridentate, isoquinoline-derived ligands, involving successive Suzuki cross-coupling reactions, is described. The first ligand Could be resolved via molecular complexation with N-benzylcinchonidinium chloride, while the second was resolved by chromatographic separation of its epimeric carnphorsulfonates. The barrier to rotation about the central biaryl axis was evaluated via racemisation Studies, and the absolute configuration assigned by X-ray crystallography. (c) 2005 Elsevier Ltd. All rights reserved.
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