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109053-82-9

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109053-82-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109053-82-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,0,5 and 3 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 109053-82:
(8*1)+(7*0)+(6*9)+(5*0)+(4*5)+(3*3)+(2*8)+(1*2)=109
109 % 10 = 9
So 109053-82-9 is a valid CAS Registry Number.

109053-82-9Downstream Products

109053-82-9Relevant articles and documents

Asymmetric Conjugate Addition of Grignard Reagents to 3-Silyl Unsaturated Esters for the Facile Preparation of Enantioenriched β-Silylcarbonyl Compounds and Allylic Silanes

Zhao, Kai,Loh, Teck-Peng

, p. 16764 - 16772 (2016/02/12)

A highly enantioselective conjugate addition of Grignard reagents to 3-silyl unsaturated esters to deliver synthetically useful chiral β-silylcarbonyl compounds was developed. The synthetic value of this methodology was further illustrated by the synthesis of enantioenriched β-hydroxyl esters and the facile access granted to various α-chiral allylic silanes. A plethora of diastereoselective transformations of β-silylenolates were also investigated and afforded manifold organosilanes that contained contiguous stereogenic centers with excellent enantioselectivity.

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