Welcome to LookChem.com Sign In|Join Free

CAS

  • or

957-46-0

Post Buying Request

957-46-0 Suppliers

Recommended suppliersmore

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

957-46-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 957-46-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,5 and 7 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 957-46:
(5*9)+(4*5)+(3*7)+(2*4)+(1*6)=100
100 % 10 = 0
So 957-46-0 is a valid CAS Registry Number.

957-46-0Relevant articles and documents

One-Pot Reaction of Carboxylic Acids and Ynol Ethers for the Synthesis of β-Keto Esters

Zeng, Linwei,Lai, Zhencheng,Cui, Sunliang

, p. 14834 - 14841 (2018/12/14)

An one-pot reaction of carboxylic acids and ynol ethers for the synthesis of β-keto esters has been developed. Under promotion of Ag2O, various carboxylic acids and ynol ethers could transform to α-acyloxy enol esters, which undergo a following DMAP-catalyzed rearrangement to deliver β-keto esters rapidly. This method provides a direct approach to β-keto esters from carboxylic acids without any preactivation. The protocol features mild reaction conditions, broad substrate scope, and the products could be transformed to an array of compounds.

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 957-46-0