Welcome to LookChem.com Sign In|Join Free

CAS

  • or

581795-72-4

Post Buying Request

581795-72-4 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

581795-72-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 581795-72-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,8,1,7,9 and 5 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 581795-72:
(8*5)+(7*8)+(6*1)+(5*7)+(4*9)+(3*5)+(2*7)+(1*2)=204
204 % 10 = 4
So 581795-72-4 is a valid CAS Registry Number.

581795-72-4Relevant articles and documents

Highly β-stereoselective nucleosidation from α-D-xylo- and α-D-ribo-furanose 1,2-thiocarbonates

Robles, Rafael,Rodriguez, Concepcion,Alvarez De Cienfuegos, Luis,Mota, Antonio J.

, p. 831 - 838 (2007/10/03)

Cyclic 1,2-thiocarbonates of α-D-xylo- and α-D-ribo-furanoses were found to be excellent glycosyl donors in mild NIS-mediated nucleophilic substitution reactions, affording β-nucleosides with complete stereoselectivity and moderate to high yields after treatment with persilylated pyrimidinic bases. The nucleophile is believed to open the thiocarbonate ring at the anomeric position presumably via an SN2 mechanism. Participation of the nucleobase silylating agent [N,O-bis(trimethylsilyl) acetamide] in the mechanism of the nucleosidation step was shown, where a large excess of it has been proven to be necessary in order to achieve high yields. Absolute configurations at C-1′ were ascertained by chemical correlation synthesizing the corresponding 2,2′-anhydro-nucleosides.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 581795-72-4