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O,O'-trans-cinnamylidene-Lg-tartaric acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

99267-71-7

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99267-71-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99267-71-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,6 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99267-71:
(7*9)+(6*9)+(5*2)+(4*6)+(3*7)+(2*7)+(1*1)=187
187 % 10 = 7
So 99267-71-7 is a valid CAS Registry Number.

99267-71-7Relevant academic research and scientific papers

A New Methodology for the Construction of Chiral 4-Benzyl-2-furanone via C2-Symmetric Bis-Radical Intermediate

Takano, Seiichi,Ohashi, Kazuko,Sugihara, Takumichi,Ogasawara, Kunio

, p. 203 - 206 (2007/10/02)

A new methodology leading to optically pure 4-benzyl-2-furanone has been developed by employing intramolecular reaction intervening C2-Symmetric bis-radical intermediate derived from diethyl (L)-tartrate.

ASYMMETRIC SIMMONS-SMITH REACTIONS USING HOMOCHIRAL PROTECTING GROUPS

Mori, Atsunori,Arai, Isao,Yamamoto, Hisashi,Nakai, Hisao,Arai, Yoshinobu

, p. 6447 - 6458 (2007/10/02)

Asymmetric Simmons-Smith reactions of α,β-unsaturated acetals derived from chiral dialkyl tartrate or (2R,4R)-2,4-pentanediol are described.Treatment of the acetal with diethylzinc and methylene iodide gives a cyclopropane with high diastereoselectivity.The acetal group is readily transformed to the aldehyde or the ester group.In addition, the method is successfully applied to the enantioselective synthesis of 5,6-methanoleukotriene A4, a stable and selective inhibitor of leukotriene biosynthesis.

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