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666824-79-9

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666824-79-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 666824-79-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,6,8,2 and 4 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 666824-79:
(8*6)+(7*6)+(6*6)+(5*8)+(4*2)+(3*4)+(2*7)+(1*9)=209
209 % 10 = 9
So 666824-79-9 is a valid CAS Registry Number.

666824-79-9Relevant articles and documents

Stereoselective carbon-carbon bond forming reactions between various chiral alkyl aryl carbinols and triethyl methanetricarboxylate by oxidation-reduction condensation using alkyl diphenylphosphinites

Mukaiyama, Teruaki,Nagata, Yuzo,Ikegai, Kazuhiro

, p. 1676 - 1677 (2005)

Oxidation-reduction condensation reactions between alkyl diphenylphosphinites derived from chiral alkyl aryl carbinols and triethyl methanetricarboxylate proceeded smoothly to afford the corresponding condensation products in good yields with inversion of stereochemistries. Copyright

Stereoselective Carbon-Carbon Bond Formation via the Mitsunobu Displacement of Chiral Secondary Benzylic Alcohols

Hillier, Michael C.,Desrosiers, Jean-Nicolas,Marcoux, Jean-Francois,Grabowski, Edward J. J.

, p. 573 - 576 (2007/10/03)

(Matrix presented) The stereoselective displacement of a variety of chiral benzylic alcohols with triethylmethanetricarboxylate (TEMT) under Mitsunobu conditions (DEAD, PMe3) has been demonstrated to proceed in good yield (70-94%) and with a high degree of inversion. Subsequent saponification and decarboxylation of the products thus obtained provide chiral 3-aryl-3-substituted propanoic acids without racemization.

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