Welcome to LookChem.com Sign In|Join Free

CAS

  • or

115078-42-7

Post Buying Request

115078-42-7 Suppliers

Recommended suppliersmore

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

115078-42-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 115078-42-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,0,7 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 115078-42:
(8*1)+(7*1)+(6*5)+(5*0)+(4*7)+(3*8)+(2*4)+(1*2)=107
107 % 10 = 7
So 115078-42-7 is a valid CAS Registry Number.

115078-42-7Downstream Products

115078-42-7Relevant articles and documents

Improved synthesis of symmetrically & asymmetrically: N -substituted pyridinophane derivatives

Wessel, Andrew J.,Schultz, Jason W.,Tang, Fengzhi,Duan, Hui,Mirica, Liviu M.

, p. 9923 - 9931 (2017/12/12)

The N,N′-di(toluenesulfonyl)-2,11-diaza[3,3](2,6)pyridinophane (TsN4) precursor was sought after as a starting point for the preparation of various symmetric and asymmetric pyridinophane-derived ligands. Various procedures to synthesize TsN4 had been published, but the crucial problem had been the purification of TsN4 from the larger 18- and 24-membered azamacrocycles. Most commonly, column chromatography or other laborious methods have been utilized for this separation, yet we have found an alternate selective dissolution method upon protonation which allows for multi-gram scale output of TsN4·HCl. This optimized synthesis of TsN4 also led to the development of symmetric RN4 derivatives as well as the asymmetric derivative N-(tosyl)-2,11-diaza[3,3](2,6)pyridinophane (TsHN4). Using this TsHN4 precursor, different N-substituents can be added to create a library of asymmetric RR′N4 macrocyclic ligands. These asymmetric RR′N4 derivatives expand the utility of the RN4 framework in coordination chemistry and the ability to study the electronic, steric, and denticity effects of these pyridinophane ligands on the metal center.

Efficient synthesis of 2,11,20-triaza[3.3.3](2,6)pyridinophane

Lee, Geunsu,Oka, Masakazu,Takemura, Hiroyuki,Miyahara, Yuji,Shimizu, Nobujiro,Inazu, Takahiko

, p. 8304 - 8306 (2007/10/03)

-

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 115078-42-7