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1174149-07-5

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1174149-07-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1174149-07-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,4,1,4 and 9 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1174149-07:
(9*1)+(8*1)+(7*7)+(6*4)+(5*1)+(4*4)+(3*9)+(2*0)+(1*7)=145
145 % 10 = 5
So 1174149-07-5 is a valid CAS Registry Number.

1174149-07-5Downstream Products

1174149-07-5Relevant articles and documents

Selective oxygenation of unactivated C-H bonds by dioxygen: Via the autocatalytic formation of oxoiron(v) species

Chandra, Bittu,De, Puja,Sen Gupta, Sayam

, p. 8484 - 8487 (2020)

Selective catalytic oxygenation of unactivated C-H bonds for a series of substrates by dioxygen using iron complexes was performed without the use of a co-reductant. Mechanistic studies indicate that the reaction proceeded via the autocatalytic formation of an oxoiron(v) intermediate, which brings high regioselectivity and stereoretention.

Murphy,D.K. et al.

, p. 2649 - 2653 (1969)

C-H bond oxidation catalyzed by an imine-based iron complex: A mechanistic insight

Olivo, Giorgio,Nardi, Martina,Vìdal, Diego,Barbieri, Alessia,Lapi, Andrea,Gómez, Laura,Lanzalunga, Osvaldo,Costas, Miquel,Di Stefano, Stefano

supporting information, p. 10141 - 10152 (2015/11/16)

A family of imine-based nonheme iron(II) complexes (LX)2Fe(OTf)2 has been prepared, characterized, and employed as C-H oxidation catalysts. Ligands LX (X = 1, 2, 3, and 4) stand for tridentate imine ligands resulting from spontaneous condensation of 2-pycolyl-amine and 4-substituted-2-picolyl aldehydes. Fast and quantitative formation of the complex occurs just upon mixing aldehyde, amine, and Fe(OTf)2 in a 2:2:1 ratio in acetonitrile solution. The solid-state structures of (L1)2Fe(OTf)(ClO4) and (L3)2Fe(OTf)2 are reported, showing a low-spin octahedral iron center, with the ligands arranged in a meridional fashion. 1H NMR analyses indicate that the solid-state structure and spin state is retained in solution. These analyses also show the presence of an amine-imine tautomeric equilibrium. (LX)2Fe(OTf)2 efficiently catalyze the oxidation of alkyl C-H bonds employing H2O2 as a terminal oxidant. Manipulation of the electronic properties of the imine ligand has only a minor impact on efficiency and selectivity of the oxidative process. A mechanistic study is presented, providing evidence that C-H oxidations are metal-based. Reactions occur with stereoretention at the hydroxylated carbon and selectively at tertiary over secondary C-H bonds. Isotopic labeling analyses show that H2O2 is the dominant origin of the oxygen atoms inserted in the oxygenated product. Experimental evidence is provided that reactions involve initial oxidation of the complexes to the ferric state, and it is proposed that a ligand arm dissociates to enable hydrogen peroxide binding and activation. Selectivity patterns and isotopic labeling studies strongly suggest that activation of hydrogen peroxide occurs by heterolytic O-O cleavage, without the assistance of a cis-binding water or alkyl carboxylic acid. The sum of these observations provides sound evidence that controlled activation of H2O2 at (LX)2Fe(OTf)2 differs from that occurring in biomimetic iron catalysts described to date.

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