Welcome to LookChem.com Sign In|Join Free

CAS

  • or

17735-20-5

Post Buying Request

17735-20-5 Suppliers

Recommended suppliersmore

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

17735-20-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17735-20-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,7,3 and 5 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 17735-20:
(7*1)+(6*7)+(5*7)+(4*3)+(3*5)+(2*2)+(1*0)=115
115 % 10 = 5
So 17735-20-5 is a valid CAS Registry Number.

17735-20-5Downstream Products

17735-20-5Relevant articles and documents

Metal triflates-methanesulfonic acid as new catalytic systems: Application to the Fries rearrangement

Mouhtady, Omar,Gaspard-Iloughmane, Hafida,Roques, Nicolas,Le Roux, Christophe

, p. 6379 - 6382 (2003)

A surprising synergistic effect has been discovered between metal triflates (Mg, Ca, Sc, Cu, Zn, Y, Ln, Bi) and methanesulfonic acid, leading to active catalytic systems for the Fries rearrangement. In particular, the systems based on yttrium and copper(II) triflate proved to be very active and much cheaper than scandium triflate. The efficiency of these systems might result from the catalytic Lewis acid activation of Br?nsted acids.

Synthesis of 2-acylphenol and flavene derivatives from the ruthenium-catalyzed oxidative c-h acylation of phenols with aldehydes

Lee, Hanbin,Yi, Chae S.

supporting information, p. 1899 - 1904 (2015/03/18)

The cationic ruthenium hydride complex [(C6H6)(PCy3)(CO)RuH]+BF4- has been found to be an effective catalyst for the oxidative C-H coupling reaction of phenols with aldehydes to give 2-acylphenol compounds. The coupling of phenols with α,β-unsaturated aldehydes selectively gives the flavene derivatives. The catalytic method mediates direct oxidative C-H coupling of phenol and aldehyde substrates without using any metal oxidants or forming wasteful byproducts. A cationic ruthenium hydride complex catalyzes the oxidative C-H coupling of phenols with aldehydes to form 2-acylphenol and flavene derivatives.

The Catalytic Fries Rearrangement and o-Acylation Reactions Using Group 3 and 4 Metal Triflates as Catalysts

Kobayashi, Shue,Moriwaki, Mitsuhiro,Hachiya, Iwao

, p. 267 - 273 (2007/10/03)

Group 3 and 4 metal triflates (Sc(OTf)3, TiCl(OTf)3, Zr(OTf)4, and Hf(OTf)4) were found to be efficient catalysts in the Fries rearrangement of phenyl or 1 -naphthyl acylates. It was also found that the o-acylation (direct acylation) reactions of phenols and 1-naphthols with acid chlorides proceeded smoothly in the presence of the triflates. Both reactions were successfully carried out using small amounts of the triflates (catalytically), and comparison of catalytic activities of these metal triflates in these reactions is discussed.

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 17735-20-5