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Synthesis and studies of 6,6 '-BINAP derivatives for the heterogeneous asymmetric hydrogenation of methyl acetoacetate

机译:乙酰乙酸甲酯非均相不对称氢化反应的6,6'-BINAP衍生物的合成与研究

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摘要

New BINAP derivatives (polyamide, polyureas or ureas) were synthesized and employed in the ruthenium-catalyzed asymmetric heterogeneous hydrogenation of methyl acetoacetate. Enantiomeric excesses in the range 48-100% were observed. Furthermore, the most efficient have been recovered and the recycled catalysts were shown to maintain their efficiency in subsequent reactions. (C) 2002 Elsevier Science Ltd. All rights reserved. [References: 24]
机译:合成了新的BINAP衍生物(聚酰胺,聚脲或脲),并将其用于钌催化的乙酰乙酸甲酯的不对称多相加氢反应。观察到对映体过量在48-100%的范围内。此外,已经回收了最有效的催化剂,并且证明了再循环的催化剂在随后的反应中保持了其效率。 (C)2002 Elsevier ScienceLtd。保留所有权利。 [参考:24]

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