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69773-80-4

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69773-80-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69773-80-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,7,7 and 3 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 69773-80:
(7*6)+(6*9)+(5*7)+(4*7)+(3*3)+(2*8)+(1*0)=184
184 % 10 = 4
So 69773-80-4 is a valid CAS Registry Number.

69773-80-4Relevant articles and documents

New Synthetic Methods, 7. - β-Ketosulfones, Useful Ethylenediide Equivalents for the Preparation of Olefins and the Synthesis of 6-Nonen-1-ol, the Sex Attractant of the Mediterranean Fruit Fly (Ceratitus capitata)

Scholz, Dieter

, p. 98 - 106 (2007/10/02)

β-Ketosulfones, which form dianions (α and γ position), are alkylated in both positions.Brominating cleavage gives α-bromosulfones which, by Ramberg-Baecklund rearrangement, form olefins.The synthesis of 6-nonen-1-ol, starting from 2-(methylsulfonyl)cyclohexanone, is described.

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