Welcome to LookChem.com Sign In|Join Free

CAS

  • or

220898-58-8

Post Buying Request

220898-58-8 Suppliers

Recommended suppliersmore

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

220898-58-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220898-58-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,8,9 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 220898-58:
(8*2)+(7*2)+(6*0)+(5*8)+(4*9)+(3*8)+(2*5)+(1*8)=148
148 % 10 = 8
So 220898-58-8 is a valid CAS Registry Number.

220898-58-8Relevant articles and documents

4,5-Dioxo-imidazolinium Cation Activation of 1-Acyl-1-carbamoyl Oximes: Access to Cyanoformamides Using Dichloroimidazolidinedione

Gao, Yu,Guo, Kai,Guo, Tianfo,Li, Yongqiang,Li, Zhenjiang,Liu, Bo,Yao, Zhiwei,Zhang, Zhihao,Zhu, Yuejia

, (2020/01/31)

Cyanoformamides are prevalent as versatile building blocks for accessing synthetically useful intermediates and biologically active compounds. The development of a milder, simpler, and more efficient approach to cyanoformamides is nontrivial. Herein, we demonstrate the effectiveness of 4,5-dioxo-imidazolinium cation activation for transforming 1-acyl-1-carbamoyl oximes to cyanoformamides. By making use of the readily available and highly modifiable dichloroimidazolidinediones (DCIDs), this novel method of activation offers reactivity remarkably greater than that of other reported protocols, exhibits a high functional group compatibility with mild conditions, and could be scaled up easily. More than 30 examples are demonstrated with good to excellent yields in short reaction times. This research not only provides a mild and efficient alternative approach to assembling a portfolio of cyanoformamides but also extends the dichloroimidazolidinedione-mediated chemistry to encompass the C-C bond cleavage reaction.

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 220898-58-8