Welcome to LookChem.com Sign In|Join Free

CAS

  • or

596845-53-3

Post Buying Request

596845-53-3 Suppliers

Recommended suppliersmore

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

596845-53-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 596845-53-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,9,6,8,4 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 596845-53:
(8*5)+(7*9)+(6*6)+(5*8)+(4*4)+(3*5)+(2*5)+(1*3)=223
223 % 10 = 3
So 596845-53-3 is a valid CAS Registry Number.

596845-53-3Downstream Products

596845-53-3Relevant articles and documents

4-(Trifluoromethyl)quinoline derivatives

Lefebvre, Olivier,Marull, Marc,Schlosser, Manfred

, p. 2115 - 2121 (2003)

Under carefully controlled conditions, ethyl 4,4,4-trifluoroacetoacetate (ethyl 4,4,4-trifluoro-3-oxobutanoate) can be condensed with anilines and subsequently cyclized to give 4-trifluoromethyl-2-quinolinones 1 although only in poor yield. Heating these products with phosphoryl tribromide affords 2-bromo-4-(trifluoromethyl)quinolines 2 which can be converted into 4-(trifluoromethyl)quinolines 3 by reduction, 4-trifluoromethyl-2-quinolinecarboxylic acids 4 by permutational halogen/metal exchange followed by carboxylation, and 2-bromo-4-trifluoromethyl-3-quinolinecarboxylic acids 5 by consecutive treatment with lithium diisopropylamide and dry ice. Debromination of acids 5 makes 4-trifluoromethyl-3-quinolinecarboxylic acids 6 available. As at any time 2-trifluoromethyl-4-quinolinones 9 may form instead of the expected isomers 1, the structures have to be assigned on the basis of unequivocal NMR spectral criteria. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.

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 596845-53-3