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106583-99-7

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106583-99-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 106583-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,6,5,8 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 106583-99:
(8*1)+(7*0)+(6*6)+(5*5)+(4*8)+(3*3)+(2*9)+(1*9)=137
137 % 10 = 7
So 106583-99-7 is a valid CAS Registry Number.

106583-99-7Relevant articles and documents

Synthesis of RuHCl(CO)(Hdmpz)(L)2 (L=PPh3, AsPh3, and Hdmpz=3,5-dimethylpyrazole) and crystal structure of RuHCl(CO)(Hdmpz)(AsPh3)2

Huh, Seong,Kim, Youngmee,Youm, Kyoung-Tae,Jun, Moo-Jin

, p. 2625 - 2631 (1999)

Treatment of RuHCl(CO)(L)3 with a slight excess amount of K[HB(3,5-Me2pz)3] in boiling MeOH solution yielded unusual 3,5-dimethylpyrzaole (Hdmpz) complexes, RuHCl(CO)(Hdmpz)(L)2 (L=PPh3, 1 or AsPh3, 2). Unexpectedly the dissociation of the bonds between the boron atom and the nitrogen atoms of the potentially tridentate [HB(3,5-Me2pz)3]- ligand during the coordination of the ligand to the RuII metal has been observed. In a separate preparation, the RuHCl(CO)(Hdmpz)(PPh3)2 complex has also been synthesized from the reaction between RuHCl(CO)(PPh3)3 and the monodentate Hdmpz ligand. Complexes 1 and 2 have been characterized by elemental analysis, IR and 1H NMR spectroscopies. Compound 1 has also been prepared by the reaction between RuHCl(CO)(PPh3)3 and K[H2B(3,5-Me2pz)2] in boiling toluene solution. The crystal structure of 2 has been studied by X-ray crystallography. The geometrical structure around RuII of 2 is a distorted octahedral structure. The crystal structure of 2 consists of a discrete monomeric compound. It is interesting to find that the sterically-demanding [HB(3,5-Me2pz)3]- or [H2B(3,5-Me2pz)2]- ligands break up during the reaction with the RuII complexes to form the neutral 3,5-dimethylpyrazole complexes. In contrast to these observations, [H2Bpz2]- and [H2B(4-Brpz)2]- ligands form very stable RuII complexes. Elsevier Science Ltd.

Phenylacetylene dimerization promoted by ruthenium(II) complexes

Echavarren, Antonio M.,Lopez, Javier,Santos, Amelia,Montoya, Julio

, p. 393 - 400 (2007/10/02)

The complex Ru(CO)(CH=CHPh)Cl(C5H5N)(PPh3)2 and related alkenyl complexes react in methanol or ethanol to give (E,E)-1,4-diphenylbuta-1,3-diene and the ruthenium(II) hydride Ru(CO)H(Cl)(C5H5N)(PPh3)3.Futher reaction of this hydride with the butadiene results in 1,2-reduction to yield (E)-1,4-diphenyl-1-butene.However, the reaction of phenylacetylene with catalytic amounts of ruthenium hydrides gave the dimer (Z)-1,4-diphenylbuten-3-yne.On the other hand, the reaction of 1,2-diphenylethenylruthenium(II) derivatives in methanol or ethanol gave trans-stilbene rather than the butadiene.Several deuteration experiments were performed in order to elucidate the mechanism of formation of (E,E)-1,4-diphenylbuta-1,3-diene and ruthenium hydride from the corresponding alkenyl complexes.

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