Methyl 3,3,3-trifluoro-2-diazopropionate for the synthesis of functionalized styrenes
作者:D. V. Vorobyeva、I. E. Yagafarova、T. P. Vasilyeva、S. N. Osipov
DOI:10.1007/s11172-016-1633-3
日期:2016.11
The efficient method for the synthesis of novel trifluoromethyl-containing hydroxy- and aminostyrenes has been developed. The reaction sequence includes the selective insertion of CF3-substituted carbene, which was catalytically derived from methyl 3,3,3-trifluoro-2-diazopropionate, into the OH- or NH-bonds of easily available o-bromophenol and o-bromoaniline derivatives followed by a bromine substitution
Cu-Catalyzed Carbenoid Functionalization of Indoles by Methyl 3,3,3-Trifluoro-2-diazopropionate
作者:Irina E. Tsyshchuk、Daria V. Vorobyeva、Alexander S. Peregudov、Sergey N. Osipov
DOI:10.1002/ejoc.201301734
日期:2014.4
CH-functionalization of indole and its derivatives has been developed by using Cu(F3-acac)2-catalyzed insertion of CF3-carbene derived from methyl 3,3,3-trifluoro-2-diazopropionate. The reaction proceeds with high regioselectivity within a few minutes under low catalyst loading and allows the introduction of CF3 and carboxylate functions simultaneously into the 3- or 2-position of the indole core. This method
Half-sandwich complexes of group 9 metals with N,Nʹ-ligands for CF3-carbenoid alkylation of N-(pyrimidin-2-yl)indole
作者:Sofya S. Kuvshinova、Yulia V. Nelyubina、Vladimir A. Larionov、Daria V. Vorobyeva、Sergey N. Osipov、Dmitry A. Loginov
DOI:10.1016/j.jorganchem.2021.121899
日期:2021.8
The complexes [CpM(N,Nʹ-ligand)Br]PF6 (M = Rh, Ir; N,Nʹ-ligand = 2,2′-bipyridyl, 1,10-phenanthroline) were synthesized by reactions of bromides [CpMBr2]n with 2,2′-bipyridyl or 1,10-phenanthroline followed by a counterion exchange. The replacement of cyclooctadiene in [CpIr(cod)I]I3 with N,Nʹ-ligands leads to complexes [CpIr(N,Nʹ-ligand)I]I3 (N,Nʹ-ligand = 2,2′-bipyridyl, 1,10-phenanthroline). The
的配合物[CPM(N,N'-配体)BR] PF 6(M =铑,铱; N,N'-二-配体= 2,2'-联吡啶,1,10-菲咯啉)的溴化物的反应[CPMBr合成2用2,2'-联吡啶或1,10-菲咯啉] n,然后进行抗衡离子交换。用N,Nʹ-配体取代[CPIr(cod)I] I 3中的环辛二烯,形成配合物[CPIr(N,Nʹ-配体)I] I 3(N,Nʹ-配体= 2,2'-联吡啶, 1,10-菲咯啉)。[CPRh(2,2'-联吡啶基)Br] PF 6,[CPIr(2,2'-联吡啶基)I] I 3和[CPIr(1,10-菲咯啉)Br] PF 6的结构通过X射线衍射测定。制备的化合物以及相关的三(吡唑基)硼酸酯衍生物[CPCoTp] PF 6和[CP * MTp] PF 6(M = Rh,Ir)有效催化N-(嘧啶-2-基)吲哚的烷基化用3,3,3-三氟-2-重氮丙酸甲酯选择性地在吲哚部分的C 3位置引入CF
CF<sub>3</sub>-Carbenoid C-H Functionalization of (Hetero)arenes under Chelation-Controlled Rh<sup>III</sup>Catalysis
作者:Irina E. Iagafarova、Daria V. Vorobyeva、Alexander S. Peregudov、Sergey N. Osipov
DOI:10.1002/ejoc.201500545
日期:2015.8
An efficient method for the CF3-carbenoidC–Hfunctionalization of benzenes and indoles using readily available methyl 3,3,3-trifluoro-2-diazopropionate as a cross-coupling partner underchelation-controlled RhIII catalysis has been developed. The reactions proceeded smoothly with high regioselectivity in a few hours and allowed the simultaneous introduction of CF3 and carboxylate functions into the
A Rh-catalyzed intermolecular coupling of diazomalonates with arene C-H bonds is reported. The reaction is initiated by electrophilic C-H activation, which is followed by coupling of the arylrhodium(III) complex with the diazomalonate. In most cases, arenes with oximes, carboxylic acids, and amines as directing groups cross-couple with diazomalonates with excellent regioselectivities and functional