Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1330068-04-6

Post Buying Request

1330068-04-6 Suppliers

Recommended suppliersmore

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

1330068-04-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1330068-04-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,0,0,6 and 8 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1330068-04:
(9*1)+(8*3)+(7*3)+(6*0)+(5*0)+(4*6)+(3*8)+(2*0)+(1*4)=106
106 % 10 = 6
So 1330068-04-6 is a valid CAS Registry Number.

1330068-04-6Relevant articles and documents

Cationic gold- and silver-catalyzed cycloisomerizations of propargylic ureas: A selective entry to oxazolidin-2-imines and imidazolidin-2-ones

Pereshivko, Olga P.,Peshkov, Vsevolod A.,Jacobs, Jeroen,Meervelt, Luc Van,Van Der Eycken, Erik V.

, p. 781 - 789 (2013)

A comparative study on transition metal-catalyzed cycloisomerizations of propargylic ureas derived in situ from secondary propargylic amines and tosyl isocyanate was performed. The influence of catalytic system on the reaction outcome was thoroughly studied on two model examples resulting in the establishment of two selective protocols for both O- and N-cyclizations. The application of cationic gold(I) catalysis generally resulted in a formation of oxazolidin-2-imines as major products while the application of silver(I) triflate selectively provided the corresponding imidazolidin-2-ones. An attempt to rationalize the observed chemoselectivity is described. The scope of both processes was demonstrated through the use of variously substituted secondary propargylic amines. Copyright

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 1330068-04-6