Welcome to LookChem.com Sign In|Join Free

CAS

  • or

187402-80-8

Post Buying Request

187402-80-8 Suppliers

Recommended suppliersmore

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

187402-80-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187402-80-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,4,0 and 2 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 187402-80:
(8*1)+(7*8)+(6*7)+(5*4)+(4*0)+(3*2)+(2*8)+(1*0)=148
148 % 10 = 8
So 187402-80-8 is a valid CAS Registry Number.

187402-80-8Relevant articles and documents

General method for the preparation of active esters by palladium-catalyzed alkoxycarbonylation of aryl bromides

De Almeida, Angelina M.,Andersen, Thomas L.,Lindhardt, Anders T.,De Almeida, Mauro V.,Skrydstrup, Troels

, p. 1920 - 1928 (2015)

A useful method was developed for the synthesis of active esters by palladium-catalyzed alkoxycarbonylation of (hetero)aromatic bromides. The protocol was general for a range of oxygen nucleophiles including N-hydroxysuccinimide (NHS), pentafluorophenol (PFP), hexafluoroisopropyl alcohol (HFP), 4-nitrophenol, and N-hydroxyphthalimide. A high functional group tolerance was displayed, and several active esters were prepared with good to excellent isolated yields. The protocol was extended to access an important synthetic precursor to the HIV-protease inhibitor, saquinavir, by formation of an NHS ester followed by acyl substitution.

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 187402-80-8