Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1613249-88-9

Post Buying Request

1613249-88-9 Suppliers

Recommended suppliersmore

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

1613249-88-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1613249-88-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,3,2,4 and 9 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1613249-88:
(9*1)+(8*6)+(7*1)+(6*3)+(5*2)+(4*4)+(3*9)+(2*8)+(1*8)=159
159 % 10 = 9
So 1613249-88-9 is a valid CAS Registry Number.

1613249-88-9Downstream Products

1613249-88-9Relevant articles and documents

A dual-catalysis approach to enantioselective [2 + 2] photocycloadditions using visible light

Du, Juana,Skubi, Kazimer L.,Schultz, Danielle M.,Yoon, Tehshik P.

, p. 392 - 396 (2014/05/20)

In contrast to the wealth of catalytic systems that are available to control the stereochemistry of thermally promoted cycloadditions, few similarly effective methods exist for the stereocontrol of photochemical cycloadditions. A major unsolved challenge in the design of enantioselective catalytic photocycloaddition reactions has been the difficulty of controlling racemic background reactions that occur by direct photoexcitation of substrates while unbound to catalyst. Here, we describe a strategy for eliminating the racemic background reaction in asymmetric [2 + 2] photocycloadditions of a,b-unsaturated ketones to the corresponding cyclobutanes by using a dual-catalyst system consisting of a visible light-absorbing transition-metal photocatalyst and a stereocontrolling Lewis acid cocatalyst. The independence of these two catalysts enables broader scope, greater stereochemical flexibility, and better efficiency than previously reported methods for enantioselective photochemical cycloadditions.

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 1613249-88-9