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853955-68-7

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853955-68-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 853955-68-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,3,9,5 and 5 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 853955-68:
(8*8)+(7*5)+(6*3)+(5*9)+(4*5)+(3*5)+(2*6)+(1*8)=217
217 % 10 = 7
So 853955-68-7 is a valid CAS Registry Number.

853955-68-7Relevant articles and documents

Silicon-Based Cross-Coupling Reagent and Production Method of Organic Compound Using the Same

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Page/Page column 14, (2009/04/24)

In one embodiment of the present invention, a silicon-based cross-coupling reagent is disclosed which is a highly stable tetraorganosilicon compound allowing for a cross-coupling reaction under mild reaction conditions without using fluoride ions, transition metal promoter, or strong bases, and the residue of the silicon reagent can be recovered and reused. The silicon-based cross-coupling reagent is a silicon compound in which an o-hydroxymethylphenyl group is connected to a silicon atom for intramolecular activation.

Alkenyl- and aryl[2-(hydroxymethyl)phenyl]dimethylsilanes: An entry to tetraorganosilicon reagents for the silicon-based cross-coupling reaction

Nakao, Yoshiaki,Imanaka, Hidekazu,Sahoo, Akhila K.,Yada, Akira,Hiyama, Tamejiro

, p. 6952 - 6953 (2007/10/03)

Alkenyl- and aryl[2-(hydroxymethyl)phenyl]dimethylsilanes, highly stable tetraorganosilicon reagents, are found to react with aryl and alkenyl iodides in the presence of a palladium catalyst and K2CO3 as a base, significantly milder conditions compared with those ever reported for the silicon-based cross-coupling reactions. The reaction tolerates a wide range of functional groups, including silyl protectors, and allows a gram-scale synthesis to recover and reuse the silicon residue. Copyright

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