Welcome to LookChem.com Sign In|Join Free

CAS

  • or

116561-28-5

Post Buying Request

116561-28-5 Suppliers

Recommended suppliersmore

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

116561-28-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 116561-28-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,5,6 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 116561-28:
(8*1)+(7*1)+(6*6)+(5*5)+(4*6)+(3*1)+(2*2)+(1*8)=115
115 % 10 = 5
So 116561-28-5 is a valid CAS Registry Number.

116561-28-5Relevant articles and documents

Tandem reduction-reductive alkylation of azido sugars

Chen, Liqiang,Wiemer, David F.

, p. 2705 - 2708 (2002)

Catalytic hydrogenation of azido sugars has been conducted in the presence of different aldehydes to bring about a tandem reduction-reductive alkylation sequence. The reaction sequence proceeds in generally high yields, and tolerates some benzyl and benzylidene protecting groups that are sensitive to hydrogenolysis.

Modular hydroxyamide and thioamide pyranoside-based ligand library from the sugar pool: New class of ligands for asymmetric transfer hydrogenation of ketones

Coll, Mercè,Pàmies, Oscar,Diéguez, Montserrat

, p. 2293 - 2302 (2014/07/21)

A large library of pyranoside-based hydroxyamide and thioamide ligands has been synthesized for asymmetric transfer hydrogenation in an attempt to expand the scope of the substrates to cover a broader range of challenging heteroaromatic and aryl/fluoroalkyl ketones. These ligands have the advantage that they are prepared from commercial D-glucose, D-glucosamine and α-amino acids, inexpensive natural chiral feedstocks. By carefully selecting the ligand components (substituents/configurations at the amide/thioamide moiety, the position of amide/thioamide group and the configuration at C-2), we found that pyranoside-based thioamide ligands provided excellent enantioselectivities (in the best cases, ees of >99% were achieved) in a broad range of ketones, including the less studied heteroaromatics and challenging aryl/fluoroalkyls. Note that both enantiomers of the reduction products can be obtained with excellent enantioselectivities by simply changing the absolute configuration of the thioamide substituent.

Precise structure activity relationships in asymmetric catalysis using carbohydrate scaffolds to allow ready fine tuning: dialkylzinc-aldehyde additions.

Emmerson, Daniel P G,Villard, Renaud,Mugnaini, Claudia,Batsanov, Andrei,Howard, Judith A K,Hems, William P,Tooze, Robert P,Davis, Benjamin G

, p. 3826 - 3838 (2007/10/03)

The ready construction of 24 stereochemically and functionally diverse carbohydrate ligand structures from a core D-glucosamine scaffold has allowed the evaluation of broad ranging structure activity relationships in ligand accelerated zincate additions t

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 116561-28-5