Welcome to LookChem.com Sign In|Join Free

CAS

  • or

5717-44-2

Post Buying Request

5717-44-2 Suppliers

Recommended suppliersmore

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

5717-44-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5717-44-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,1 and 7 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 5717-44:
(6*5)+(5*7)+(4*1)+(3*7)+(2*4)+(1*4)=102
102 % 10 = 2
So 5717-44-2 is a valid CAS Registry Number.

5717-44-2Relevant articles and documents

Study on the selectivity in the electrophilic monofluorination of 2,3-allenoates with Selectfluor: An efficient synthesis of 4-fluoro-2(5H)-furanones and 3-fluoro-4-oxo-2(E)-alkenoates

Lue, Bo,Fu, Chunling,Ma, Shengming

supporting information; experimental part, p. 274 - 281 (2010/04/24)

Different from the reaction of 2,3-allenoic acids with Selectfluor, 4-fluoro-2(5H)-furanones and (E)-3-fluoro-4-oxo-2-alkenoates were highly selectively generated from 2,4-disubstituted 2,3-allenoates with Selectfluor under different conditions in moderate yields. The reaction of 2, 4, 4-trisubstituted 2,3-allenoates afforded the corresponding 4-fluoro-2(5H)-furanones highly selectively with up to 95% yield under different conditions. The scope of the substrates has been carefully explored. Due to the more readily availability of 2,3-allenoates as compared to 2,3-allenoic acids, new 4-fluoro-2(5H)furanones were prepared. Based on the isolation and characterization of the minor fluorohydroxylation product E-5m, a mechanism has been proposed. The Royal Society of Chemistry 2010.

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 5717-44-2