所有图片(3)
别名:
Davies dirhodium catalyst, Dirhodium tetrakis((S,R)-1-(4-bromophenyl)-2,2-diphenylcyclopropanecarboxylate), Dirhodium tetrakis[(R)-1-(4-bromophenyl)-2,2- diphenylcyclopropane carboxylate], Tetrakis[(R)-(-)-[(1R)-1-(4-bromophenyl)-2,2-diphenylcyclopropanecarboxylato]dirhodium(II), Tetrakis[(R)-1-(4-bromophenyl)-2,2- diphenylcyclopropane carboxylato]dirhodium(II)
经验公式（希尔记法）:
C88H64Br4O8Rh2
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形式
powder or crystals
mp
>300 °C
应用
Rh catalyst developed by the Davies lab used for enantioselective cyclopropanations and C-H funcionalization under low catalyst loadings.
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
Daniel Rackl et al.
Organic letters, 19(12), 3055-3058 (2017-06-06)
A tandem reaction system has been developed for the preparation of donor/acceptor-substituted diazo compounds in continuous flow coupled to dirhodium-catalyzed C-H functionalization or cyclopropanation. Hydrazones were oxidized in flow by solid-supported N-iodo-p-toluenesulfonamide potassium salt (PS-SO2NIK) to generate the diazo compounds
Changming Qin et al.
Organic letters, 15(2), 310-313 (2013-01-05)
The rhodium-catalyzed reaction of 2-diazo-5-arylpent-4-enoates can be controlled by the appropriate choice of catalyst and catalyst loading to form either 2-arylbicyclo[1.1.0]butane carboxylates or cyclohexene derivatives. Both products are produced in a highly diastereoselective manner, with 2-arylbicyclo[1.1.0]butane carboxylates preferentially formed under
Ji-Min Yang et al.
Journal of the American Chemical Society, 139(10), 3784-3789 (2017-02-15)
Herein, we report transition-metal-catalyzed B-H bond insertion reactions between borane adducts and alkynes to afford organoboron compounds in excellent yields under mild reaction conditions. This successful use of alkynes as carbene precursors in these reactions constitutes a new route to
Kuangbiao Liao et al.
Nature, 551(7682), 609-613 (2017-11-21)
The synthesis of complex organic compounds usually relies on controlling the reactions of the functional groups. In recent years, it has become possible to carry out reactions directly on the C-H bonds, previously considered to be unreactive. One of the
David M Guptill et al.
Organic letters, 15(24), 6120-6123 (2013-11-29)
The rhodium-catalyzed decomposition of 2-(triisopropylsilyl)ethyl aryl- and vinyldiazoacetates results in the stereoselective formation of Z-allylsilanes. The transformation is considered to proceed by silyl-directed intramolecular C-H functionalization to form a β-lactone intermediate followed by a silyl-activated extrusion of carbon dioxide.
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