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17988-58-8

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17988-58-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17988-58-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,8 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 17988-58:
(7*1)+(6*7)+(5*9)+(4*8)+(3*8)+(2*5)+(1*8)=168
168 % 10 = 8
So 17988-58-8 is a valid CAS Registry Number.

17988-58-8Relevant articles and documents

Metallation Reactions. XVIII. Regioselective metallation of (alkylthio)benzenes by superbases

Cabiddu, S.,Fattuoni, C.,Floris, C.,Gelli, G.,Melis, S.

, p. 197 - 202 (2007/10/02)

(Alkylthio)benzenes were monometallated at the alpha position by a stoichiometric mixture of butyllithium and potassium t-butoxide and bimetallated at both the alpha and the ortho positions by two equivalents of the same reagent.

A NEW METHOD FOR PREPARING 1-PHENYLTHIO-1-TRIMETHYLSILYLALKANES: THE PREPARATION OF α-SILYLCARBANIONS AND OLEFINS.

Ager, David J.

, p. 2923 - 2926 (2007/10/02)

1-Phenylthio-1-trimethylsilylalkanes(1) are prepared in high yield from 1,1-bis(phenylthio)acetals(2) by reaction with lithium naphthalenide(3) followed by chlorotrimethylsilane. α-Silylcarbanions are formed from the alkanes(1) and lithium naphthalenide(3).Subsequent reaction with carbonyl compounds gave the olefins(4) via the Peterson reaction.

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