Welcome to LookChem.com Sign In|Join Free

CAS

  • or

21002-15-3

Post Buying Request

21002-15-3 Suppliers

Recommended suppliersmore

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

21002-15-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21002-15-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,0 and 2 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21002-15:
(7*2)+(6*1)+(5*0)+(4*0)+(3*2)+(2*1)+(1*5)=33
33 % 10 = 3
So 21002-15-3 is a valid CAS Registry Number.

21002-15-3Relevant articles and documents

Nickel-catalyzed Suzuki-Miyaura coupling of heteroaryl ethers with arylboronic acids

Li, Xiao-Jian,Zhang, Jin-Ling,Geng, Yu,Jin, Zhong

, p. 5078 - 5084 (2013/06/27)

Nickel-catalyzed Suzuki-Miyaura coupling of heteroaryl ethers with arylboronic acids was described. Selective activation of the phenol C-O bonds was achieved by converting them into the corresponding aryl 2,4-dimethoxy-1,3,5- triazine-6-yl ethers, in which aryl C-O bond could be selectively cleaved with inexpensive, air-stable NiCl2(dppf) as a catalyst. Coupling of these readily accessible heteroaryl ethers proved tolerant of extensive functional groups.

A Single Transition State in Nucleophilic Aromatic Substitution: Reaction of Phenolate Ions with 2-(4-Nitrophenoxy)-4,6-dimethoxy-1,3,5-triazine in Aqueous Solution

Hunter, A.,Renfrew, M.,Taylor, John A.,Whitmore, James M. J.,Williams, Andrew

, p. 1703 - 1704 (2007/10/02)

The absence of curvature in the Broensted dependence for displacement of 4-nitrophenolate ion from the title ether by phenolate ion nucleophiles with pKas well below and above that of the leaving group is consistent with a single step mechanism.

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 21002-15-3