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308335-57-1

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308335-57-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 308335-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,8,3,3 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 308335-57:
(8*3)+(7*0)+(6*8)+(5*3)+(4*3)+(3*5)+(2*5)+(1*7)=131
131 % 10 = 1
So 308335-57-1 is a valid CAS Registry Number.

308335-57-1Downstream Products

308335-57-1Relevant articles and documents

Efficient preparation of α,α-dialkyl-α-(phenylselanyl) acetates and α,β-unsaturated esters from the corresponding α,α-dialkyl-α-cyanoacetates by a lithium naphthalenide induced reductive selenenylation process

Ko, Yen-Chun,Zhu, Jia-Liang

, p. 3659 - 3665 (2008/09/19)

An array of α,α-dialkyl-α-(phenylselanyl)acetates has been synthesized very efficiently from readily available α,α- dialkyl-α-cyanoacetates, by use of lithium naphthalenide induced reductive α-selenenylation as a key operation. Moreover, the selanyl esters thus generated in situ could be converted further, in a one-pot treatment with hydrogen peroxide and acetic acid, into the corresponding α,β- unsaturated esters in moderate to high yields. The C=C bond formation was highly regio- and/or diastereoselective in some cases. Georg Thieme Verlag Stuttgart.

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