Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1257230-84-4

Post Buying Request

1257230-84-4 Suppliers

Recommended suppliersmore

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

1257230-84-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1257230-84-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,2,3 and 0 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1257230-84:
(9*1)+(8*2)+(7*5)+(6*7)+(5*2)+(4*3)+(3*0)+(2*8)+(1*4)=144
144 % 10 = 4
So 1257230-84-4 is a valid CAS Registry Number.

1257230-84-4Downstream Products

1257230-84-4Relevant articles and documents

Organocatalytic Enantioselective Synthesis of Atropisomeric Aryl-p-Quinones: Platform Molecules for Diversity-Oriented Synthesis of Biaryldiols

Chen, Ye-Hui,Li, Heng-Hui,Li, Shaoyu,Tan, Bin,Xiang, Shao-Hua,Zhang, Xiao

, p. 11374 - 11378 (2020/05/25)

Presented here is a class of novel axially chiral aryl-p-quinones as platform molecules for the preparation of non-C2 symmetric biaryldiols. Two sets of aryl-p-quinone frameworks were synthesized with remarkable enantiocontrol by means of chiral phosphoric acid catalyzed enantioselective arylation of p-quinones by central-to-axial chirality conversion. These aryl-p-quinones were then used to access a wide spectrum of highly functionalized non-C2 symmetric biaryldiols with excellent retention of the enantiopurity.

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 1257230-84-4