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phenyl-2,3,4,6-tetra-O-benzyl-1-seleno-β-D-galactopyrannoside is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139903-48-3

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139903-48-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139903-48-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,9,0 and 3 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 139903-48:
(8*1)+(7*3)+(6*9)+(5*9)+(4*0)+(3*3)+(2*4)+(1*8)=153
153 % 10 = 3
So 139903-48-3 is a valid CAS Registry Number.

139903-48-3Relevant academic research and scientific papers

Photoinitiated glycosylation at 350 nm

Cumpstey, Ian,Crich, David

experimental part, p. 469 - 485 (2012/06/15)

A method for photochemical activation of glycosyl donors is presented. Selenoglycosides were activated by single-electron transfer using a photooxidant, N-methylquinolinium hexafluorophosphate, as photosensitizer and a toluene cosolvent as cosensitizer under irradiation at 350 nm. In this way we were able to synthesize glycosides including (1→6)-linked disaccharides. Benzyl ethers and benzoate esters were compatible with these conditions, allowing potentially synthetically useful transformations. The major by-products were due to hydrolysis; the reactions required the presence of oxygen and were run in air.

Iodonium Ion-Mediated Glycosidations of Phenyl Selenoglycosides

Zuurmond, H. M.,Klein, P. A. M. van der,Meer, P. H. van der,Marel, G. A. van der,Boom, J. H. van

, p. 365 - 366 (2007/10/02)

Fully benzylated or benzoylated phenyl selenoglycosides can be activated by the promoters iodonium di-sym-collidine perchlorate (IDCP) or N-iodosuccinimide and catalytic triflic acid (NIS/TfOH cat.).The potential of the iodonium ion-mediated glycosidation

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