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890659-46-8

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890659-46-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 890659-46-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,9,0,6,5 and 9 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 890659-46:
(8*8)+(7*9)+(6*0)+(5*6)+(4*5)+(3*9)+(2*4)+(1*6)=218
218 % 10 = 8
So 890659-46-8 is a valid CAS Registry Number.

890659-46-8Downstream Products

890659-46-8Relevant articles and documents

Bis(2-thienyl)silanes: new, versatile precursors to arylsilanediols

Anderson, Thomas F.,Statham, Matthew A.J.,Carroll, Michael A.

, p. 3353 - 3355 (2006)

Silanediols have been shown to be effective bioisosteres for the hydrated carbonyl group. Current methods for the formation of silanediols place a number of constraints on how and where this functionality may be used. A range of arylsilanes that would allow both the formation of arylsilanediols and that are also compatible with multi-step synthetic routes, have been investigated as possible precursors to silanediols. Through this study bis(2-furyl)silanes and, in particular, bis(2-thienyl)silanes have been identified as practical precursors to arylsilanediols.

Titanium-catalyzed hydrosilylation of olefins: A comparison study on Cp2TiCl2/Sm and Cp2TiCl2/LiAlH4 catalyst system

Yang, Xiaoling,Bai, Ying,Li, Jiayun,Liu, Yu,Peng, Jiajian,Li, Tianbo,Lang, Rui,Qiao, Botao

, p. 64 - 68 (2019/01/08)

Hydrosilylation of olefins catalyzed by Cp2TiCl2/Sm (Cp = cyclopentadienyl) under solvent free conditions have been investigated. By using Cp2TiCl2/Sm as catalyst system, β-adducts and hydrogenation products were detected. Hydrosilylation of olefins catalyzed by Cp2TiCl2/LiAlH4 under room temperature has also been studied. The influence of TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) on Cp2TiCl2/Sm and Cp2TiCl2/LiAlH4, respectively, indicated that hydrosilylation of olefins catalyzed with Cp2TiCl2/Sm went through a free radical reaction pathway while a coordination mechanism was applied for Cp2TiCl2/LiAlH4 catalyst system.

Hydrosilylation of Olefins Catalyzed by Iron Complexes Bearing Ketimine-Type Iminobipyridine Ligands

Toya, Yuki,Hayasaka, Kazumasa,Nakazawa, Hiroshi

, p. 1727 - 1735 (2017/05/15)

A series of NNN-pincer iron complexes bearing ketimine-type iminobipyridene (BPI) ligands were prepared. These iron complexes were effective catalysts for the hydrosilylation of olefins using primary, secondary, and tertiary silanes. The effect of the substituents on the imino carbon on the catalytic activity was examined, and it was found that an appropriate combination of the imino carbon and imino nitrogen substituents led to complexes with quite high catalytic activity: the turnover number achieved was up to 42000. These iron catalytic systems provide a low-cost and promising alternative to currently employed precious metal systems for the hydrosilylation of olefins.

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