Welcome to LookChem.com Sign In|Join Free

CAS

  • or

90841-17-1

Post Buying Request

90841-17-1 Suppliers

Recommended suppliersmore

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

90841-17-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90841-17-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,8,4 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90841-17:
(7*9)+(6*0)+(5*8)+(4*4)+(3*1)+(2*1)+(1*7)=131
131 % 10 = 1
So 90841-17-1 is a valid CAS Registry Number.

90841-17-1Downstream Products

90841-17-1Relevant articles and documents

Transition-Metal-Free Coupling of Alkynes with α-Bromo Carbonyl Compounds: An Efficient Approach towards β,γ-Alkynoates and Allenoates

Liu, Wenbo,Chen, Zhengwang,Li, Lu,Wang, Haining,Li, Chao-Jun

supporting information, p. 5888 - 5893 (2016/04/26)

A direct transition-metal-free coupling between alkynes and α-bromo carbonyl compounds has been developed with ultraviolet (UV) light in aqueous media. This method represents a facile approach to synthetically useful β,γ-alkynyl esters and amides stereoselectively from two readily available starting materials. As an example of the synthetic application of the products, the alkynyl esters were readily converted into allenoates. Time for UV! A direct coupling between alkynes and α-bromo compounds has been developed with ultraviolet light in aqueous media (see scheme). This method represents a facile approach to synthetically useful β,γ-alkynyl esters and amides stereoselectively from two readily available starting materials.

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 90841-17-1