Stereoselectivity of methyl aryldiazoacetate cyclopropanations of 1,1-diarylethylene. Asymmetric synthesis of a cyclopropyl analogue of tamoxifen

Stereoselectivity of methyl aryldiazoacetate cyclopropanations of 1,1-diarylethylene. Asymmetric synthesis of a cyclopropyl analogue of tamoxifen
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DOI:
10.1021/ol005563u
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发表时间:
2000-03-23
期刊:
影响因子:
5.2
通讯作者:
Klino, JL
Klino, JL
中科院分区:
化学1区
文献类型:
--
作者:
Davies, HML;Nagashima, T;Klino, JL

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在1,1-二芳基乙烯存在下,四(S-(N-十二烷基苯磺酰基)脯氨酸)铑(Rh-2(S-DOSP)(4))催化的苯基重氮乙酸甲酯的分解导致分子间环丙烷化反应,具有高的对映选择性(高达99%ee)和中等的非对映选择性(高达80%de)。该反应被应用于他莫昔芬的环丙基类似物的不对称合成。
Dirhodium tetrakis(S(N-dodecylbenzenesulfonyl)prolinate) (Rh-2(S-DOSP)(4))-catalyzed decomposition of methyl phenyldiazoacetate in the presence of 1,1-diarylethylenes results in intermolecular cyclopropanation with high enantioselectivity (up to 99% ee) and moderate diastereoselectivity (up to 80% de). The reaction was applied to the asymmetric synthesis of a cyclopropyl analogue of tamoxifen.