Catalyst Design for Rh-Catalyzed Arene and Alkane C–H Borylation: The NHC Affects the Induction Period, and Indenyl is Superior to Cp
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DOI: 10.1021/acs.organomet.4c00025
Abstract: In order to establish design criteria for Rh C–H borylation catalysts, analogues of the successful catalyst [Rh(Ind)(SIDipp)(COE)] (Ind = η5-indenyl, SIDipp = 1,3-bis(2,6-diisopropylphenyl)-4,5-dihydroimidazol-2-ylidene, and COE = cis-cyclooctene) were synthesized by changing the indenyl and carbene… read more here.
Keywords: borylation; induction period; coe; sidipp ... See more keywords
N-Heterocyclic carbene and cyclic (alkyl)(amino)carbene complexes of vanadium(III) and vanadium(V).
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DOI: 10.1039/d2dt01250b
Abstract: [VCl3(THF)3] offers a convenient entrance point into the chemistry of carbene stabilized V(III) complexes. Herein we report the paramagnetic mono- and biscarbene complexes [VCl3(cAACMe)] 1, [VCl3(cAACMe)(THF)] 1(thf), [VCl3(IMes)] 2, [{VCl2(IiPrMe)(μ-Cl)}2] 3, [VCl3(IDipp)] 4, [VCl3(SIDipp)] 5,… read more here.
Keywords: thf; vanadium; sidipp; vcl3 ... See more keywords
Versatile chemistry of six-membered NHC with boranes: bromination at sp3 borane, activation of the B-H bond of HBpin, and ring expansion of NHC.
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DOI: 10.1039/d2dt01707e
Abstract: The NHC·borane chemistry has been majorly restricted to imidazol-2-ylidene classes of carbenes. In our previous communication, we reported the synthesis of 6-SIDipp·BH3 [6-SIDipp = 1,3-di(2,6-diisopropylphenyl) tetrahydropyrimidine-2-ylidene] and its electrophilic substitution reaction with iodine. Here, we… read more here.
Keywords: sidipp; chemistry; bond hbpin; bromination ... See more keywords