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211869-58-8

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211869-58-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 211869-58-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,8,6 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 211869-58:
(8*2)+(7*1)+(6*1)+(5*8)+(4*6)+(3*9)+(2*5)+(1*8)=138
138 % 10 = 8
So 211869-58-8 is a valid CAS Registry Number.

211869-58-8Downstream Products

211869-58-8Relevant articles and documents

Enantioselective Synthesis of Chiral Homoallyl Alcohols and Homoallylamines by Nucleophilic Addition of an Allylboron Reagent Modified by a Polymer-Supported Chiral Ligand

Itsuno, Shinichi,Watanabe, Katsuhiro,El-Shehawy, Ashraf A.

, p. 89 - 94 (2001)

Crosslinked polymer-supported chiral N-sulfonylamino alcohols 5-8 have been prepared by suspension polymerization of enantiopure N-sulfonylamino alcohol monomers 1-4 with styrene and divinylbenzene. Polymer-supported chiral allylboron reagents were prepared from the polymeric chiral ligands. Enantioselective additions of the polymer-supported allylboron reagents to aldehydes and N-(trimethylsilyl)imines have been successfully carried out in the heterogeneous system. The corresponding optically active homoallyl alcohols and homoallylamines were obtained in high yields with high enantioselectivities (up to 95% ee) which are almost the same as those obtained from homogeneous analogues. The polymer-supported chiral ligands used were recovered easily and can be reused without any loss of activity.

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