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69930-99-0

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69930-99-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69930-99-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,9,3 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 69930-99:
(7*6)+(6*9)+(5*9)+(4*3)+(3*0)+(2*9)+(1*9)=180
180 % 10 = 0
So 69930-99-0 is a valid CAS Registry Number.

69930-99-0Relevant articles and documents

SYNTHESIS OF α-SELENOALKYLLITHIUM COMPOUNDS

Krief, A.,Dumont, W.,Clarembeau, M.,Bernard, G.,Badaoui, E.

, p. 2005 - 2022 (2007/10/02)

α-Phenylselenoalkyllithiums and α-methylselenoalkyllithiums have been prepared from the corresponding selenoacetals and alkyllithiums.Several features of this reaction are disclosed.For example, the reaction is more readily achieved on phenylselenoacetals than on methylseleno analogues.Those derived from hindered carbonyl compounds are less readily cleaved. s-BuLi/THF proved superior to n-BuLi in THF, itself better than n-BuLi in ether.

PREPARATION OF 3-HYDROXYL-VINYL SELENIDES AND 1,3-BIS(SELENO)-PROPENES

Renard, M.,Hevesi, L.

, p. 5939 - 5954 (2007/10/02)

Z and E 3-hydroxy-vinyl selenides can be prepared with very high stereoselectivity respectively by nucleophilic addition of selenolates to propargyl alcohols and by selenylation followed by LiAlH4 reduction of the same propargyl alcohols. 1,3-Bis(seleno)-

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