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117788-01-9

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117788-01-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117788-01-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,8 and 8 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 117788-01:
(8*1)+(7*1)+(6*7)+(5*7)+(4*8)+(3*8)+(2*0)+(1*1)=149
149 % 10 = 9
So 117788-01-9 is a valid CAS Registry Number.

117788-01-9Relevant articles and documents

Intermolecular reactions of N-alkoxycarbonyliminium ions with propargyltrimethylsilane; oxazinone versus allene formation

Esch,Hiemstra,Speckamp

, p. 3445 - 3462 (2007/10/02)

Intermolecular reactions of N-alkoxycarbonyliminium ions with propargyltrimethylsilane mainly lead to 6-(trimethylsilyl)methyl-3,4-dihydro-2H-1,3-oxazinones, formed by intramolecular trapping of a stabilized β-sily vinylic cation. α-Allenyl carbamates are obtained as minor products. The oxazinone/allene ratio is dependent on the nature of the Lewis acid and the solvent used.

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