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Rh2 oac 4

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Rh2(OAc)4 is a rhodium-based compound commonly used as a catalyst in organic synthesis reactions. It has a dimeric structure with two rhodium atoms bridged by four acetate ligands. The compound's core function is to facilitate various chemical transformations by providing a reactive metal center.

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Lab products found in correlation

Chlorobenzene, by Thermo Fisher Scientific (1 mentions) Diethyl ether, by Thermo Fisher Scientific (1 mentions) Acetonitrile, by Thermo Fisher Scientific (1 mentions) N n dimethylformamide dmf dichloromethane, by Thermo Fisher Scientific (1 mentions) P toluenesulfonic acid tsoh, by Merck Group (1 mentions) Microtof 2, by Bruker (1 mentions) Dataanalysis 4, by Bruker (1 mentions) Triphenylphosphine, by Nacalai Tesque (1 mentions) Mgcl2, by Nacalai Tesque (1 mentions) Cu acac 2, by Merck Group (1 mentions) 1 hexanol, by Fujifilm (1 mentions) 1 dodecanol, by Nacalai Tesque (1 mentions)

3 protocols using rh2 oac 4

1

Rhodium-Catalyzed C-H Amination Synthesis

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The solvents acetonitrile, N,N-dimethylformamide (DMF), dichloromethane, diethyl ether, and chlorobenzene were purchased from Fisher Scientific or Sigma Aldrich. Prior to use, the solvents were distilled over calcium hydride or filtered over dried alumina and stored over molecular sieves. Benzo[c]cinnoline (bncn) and p-toluenesulfonic acid (TsOH) were purchased from Sigma-Aldrich, Rh2(OAc)4 (OAc = acetate) and 1-benzyl-1,4-dihydronicotinamide (BNAH) were obtained from TCI. Cobaltocene was stored in a glove box preventing it from exposure to moisture and oxygen. Synthetic procedures were performed under a N2 atmosphere and the purification processes were opened to air; the general procedure is shown in Scheme S1† and 1H NMR spectra of the starting materials and products are shown in Fig. S1–S6 (ESI†). The ligands diphenylbenzamidine (DPhB) and diphenyltriazenide (DPhTA), as well as the precursor cis-[Rh2(DPhTA)2(CH3CN)6][BF4]2 were synthesized according to literature procedures.37,38 (link)
Huang J., Gallucci J.C, & Turro C. (2020). Panchromatic dirhodium photocatalysts for dihydrogen generation with red light. Chemical Science, 11(36), 9775-9783.
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2

Mass Spectrometric Analysis of Rh2(OAc)4 Binding to Metallothionein

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Solutions of Rh2(OAc)4 (Sigma-Aldrich) were
prepared in deoxygenated, argon-aerated, deionized water. Aliquots
containing known molar equivalents were added to the apo-MT solution
immediately prior to mass spectral data acquisition using a micrOTOF
II (Bruker Daltonics, Toronto). All solutions were at room temperature
and thoroughly deaerated using vacuum evacuation followed by Ar saturation.
NaI was used as the calibrant. Spectra were collected in positive
ion mode, as a function of time following mixing. The settings used
are described in the Supporting Information. The averaged spectra and data analysis were carried out using the
maximum entropy application in Bruker DataAnalysis 4.2 program. The
resulting spectral data were normalized, and the dominant species
were identified by mass.
Wong D.L, & Stillman M.J. (2018). Metallothionein: An Aggressive Scavenger—The Metabolism of Rhodium(II) Tetraacetate (Rh2(CH3CO2)4). ACS Omega, 3(11), 16314-16327.
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3

Synthesis of Diazoacetates and Reagents

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Tetrahydrofuran
(THF) and toluene were dried
over a Na/K alloy and Na, respectively, and distilled before use.
CH2Cl2 was dried over CaH2 and used
without further purification. Cu(acac)2 (TCI; >97%),
Rh2(OAc)4 (AZmax; 99%), RuCl(cod)Cp* (Sigma-Aldrich),
Grubbs first catalyst (Sigma-Aldrich; 97%), 1-hexanol (TCI; >98.0%),
diisopropyl azodicarboxylate (Wako; >90%), triphenylphosphine (Nacalai;
>98.0%), MgCl2 (Nacalai; >97.0%), 1,8-diazabicyclo[5,4,0]-7-undecene
(DBU) (Nacalai; >97.0%), and 1-dodecanol (TCI; >99.0%) were
used as
received without further purification. Tosyl azide,27 4,4′-biphenylenediacetic acid,28 (link) 1,4-phenylenediacetic acid,28 (link),29 (link) and 2,2′-(9,9-dioctyl-9H-fluorene-2,7-diyl)diacetonitrile30 (link) were prepared following the procedures reported in the literatures.
Methyl 2-diazo-2-phenylacetate17 (link) was prepared
using tosyl azide as a diazo transfer agent following a reported general
procedure for this type of diazoketones. Caution! Extra care must
be taken for the preparation and handling of the diazoacetates because
of their potential explosiveness.
Shimomoto H., Moriya T.A., Mori T., Itoh T., Kanehashi S., Ogino K, & Ihara E. (2020). Single-Component Polycondensation of Bis(alkoxycarbonyldiazomethyl)aromatic Compounds To Afford Poly(arylene vinylene)s with an Alkoxycarbonyl Group on Each Vinylene Carbon Atom. ACS Omega, 5(10), 4787-4797.
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