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(S,S)-Bis[5-(1,1-dimethylethyl)-2-(1-hydroxypropyl)phenyl] diselenide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

200640-08-0

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200640-08-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 200640-08-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,6,4 and 0 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 200640-08:
(8*2)+(7*0)+(6*0)+(5*6)+(4*4)+(3*0)+(2*0)+(1*8)=70
70 % 10 = 0
So 200640-08-0 is a valid CAS Registry Number.

200640-08-0Downstream Products

200640-08-0Relevant academic research and scientific papers

Asymmetric addition reactions with optimized selenium electrophiles

Wirth, Thomas,Fragale, Gianfranco

, p. 1894 - 1902 (2007/10/03)

The synthesis of various nonracemic diselenides by different methods is described. These diselenides are precursors for optically active selenium electrophiles. Their facial selectivity upon addition to styrene was investigated with respect to the chiral moiety neighboring the selenium. Diselenides 1i, 1n, and 1v yielded addition products 7 with diastereomeric excesses up to 95%. Some diselenides, intermediates, and products of the addition reaction were investigated by 77Se NMR spectroscopy.

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