Welcome to LookChem.com Sign In|Join Free

CAS

  • or

80254-87-1

Post Buying Request

80254-87-1 Suppliers

Recommended suppliersmore

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

80254-87-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80254-87-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,2,5 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 80254-87:
(7*8)+(6*0)+(5*2)+(4*5)+(3*4)+(2*8)+(1*7)=121
121 % 10 = 1
So 80254-87-1 is a valid CAS Registry Number.

80254-87-1Relevant articles and documents

A Radical Chain: Mononuclear “Gold Only” Photocatalysis

Dreuw, Andreas,Hashmi, A. Stephen K.,Hoffmann, Marvin,Rominger, Frank,Rudolph, Matthias,Witzel, Sina

supporting information, (2021/12/06)

We herein report an unprecedented reactivity of mononuclear gold catalysts acting as classical catalysts and at the same time as active partners in a radical chain mechanism, whereby gold is the only catalyst. The mechanism of the photo-induced photosensitizer-free “gold only”-catalyzed cross coupling was studied in detail – experimentally and theoretically – based on the reaction between arylboronic acids and aryldiazonium salts. With a systematic set of stoichiometric experiments under various conditions and analytic methods, we could show that this mechanism is initiated by an aryl radical formed in the presence of blue LEDs and MeOH. This aryl radical enters the catalytic cycle to oxidize gold(I) to gold(II). Single electron transfer from gold(II) to the aryldiazonium salt then gives the cationic gold(III) complex by formation of a chain-supporting aryl radical which then is enabled to start a new cycle by oxidation of gold(I) without the need for irradiation. At least every 432 cycles of the radical chain, a new chain-initiating radical has to restart the radical chain. Eventually, the boronic acid is activated by the BF4? anion to transmetalate to gold(III), and reductive elimination delivers the desired product.

para-Selective arylation and alkenylation of monosubstituted arenes using thianthreneS-oxide as a transient mediator

Chen, Xiao-Yue,Nie, Xiao-Xue,Wu, Yichen,Wang, Peng

supporting information, p. 5058 - 5061 (2020/05/18)

Using thianthreneS-oxide (TTSO) as a transient mediator,para-arylation and alkenylation of mono-substituted arenes have been demonstratedviaapara-selective thianthrenation/Pd-catalyzed thio-Suzuki-Miyaura coupling sequence under mild conditions. This reaction features a broad substrate scope, and functional group and heterocycle tolerance. The versatility of this approach was further demonstrated by late-stage functionalization of complex bioactive scaffolds, and direct synthesis of some pharmaceuticals, including Tetriprofen, Ibuprofen, Bifonazole, and LJ570.

N-acylsulfonamide apoptosis promoters

-

, (2008/06/13)

N-Benzoyl arylsulfonamides having the formula are BCL-Xl inhibitors and are useful for promoting apoptosis. Also disclosed are BCL-Xl inhibiting compositions and methods of promoting apoptosis in a mammal.

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 80254-87-1