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2-[Bis-((S)-toluene-4-sulfinyl)-methyl]-2-hydroxy-malonic acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

188789-14-2

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188789-14-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188789-14-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,7,8 and 9 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 188789-14:
(8*1)+(7*8)+(6*8)+(5*7)+(4*8)+(3*9)+(2*1)+(1*4)=212
212 % 10 = 2
So 188789-14-2 is a valid CAS Registry Number.

188789-14-2Relevant academic research and scientific papers

(S,S)-1,1-bis-ethoxycarbonyl-2,2-bis-p-tolylsulfinyl ethene: A highly stereoselective but unexpectedly unreactive dienophile in asymmetric Diels-Alder reactions

Carretero, Juan C.,Garcia Ruano, Jose L.,Martin Cabrejas, Luisa M.

, p. 409 - 416 (1997)

The synthesis and dienophilic behaviour of (S,S)-1,1-bis-ethoxycarbonyl-2,2-bis-p-tolylsulfinyl ethene with cyclic and acyclic dienes is reported. The stereoselectivity is high with cyclopentadiene and complete with acyclic dienes, but its reactivity is unexpectedly low, requiring high pressures (13 Kbar) to evolve into the corresponding adducts or their pyrolytic sulfinyl elimination products.

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