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116981-02-3

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116981-02-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 116981-02-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,9,8 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 116981-02:
(8*1)+(7*1)+(6*6)+(5*9)+(4*8)+(3*1)+(2*0)+(1*2)=133
133 % 10 = 3
So 116981-02-3 is a valid CAS Registry Number.

116981-02-3Relevant articles and documents

Preparation and Reactivities of (η3-1- and 2-Trimethylsiloxyallyl)Fe(CO2)NO Complexes. Intermediates Functioning as Equivalents of β- and α-Acyl Carbocations and Acyl Carbanions

Itoh, Keiji,Nakanishi, Saburo,Otsuji, Yoshio

, p. 2965 - 2977 (2007/10/02)

(η3-1- and 2-Trimethylsiloxyallyl)Fe(CO)2NO complexes were prepared by the reaction of the corresponding siloxyallylic halides with Bu4N.These complexes reacted with both of carbon nucleophiles and carbon electrophiles preferentially at the less hindered sites of the allylic ligands.In these reactions, (η3-1-trimethylsiloxyallyl)Fe(CO)2NO complexes served as synthetically equivalent synthons for both of β-acyl carbocations and β-acyl carbanions and (η3-2-trimethylsiloxyallyl)Fe(CO)2NO complexes as both of α-acyl carbocations and α-acyl carbanions.The stereochemical courses of the reactions are described.

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