Welcome to LookChem.com Sign In|Join Free

CAS

  • or

81574-59-6

Post Buying Request

81574-59-6 Suppliers

Recommended suppliersmore

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

81574-59-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81574-59-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,7 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81574-59:
(7*8)+(6*1)+(5*5)+(4*7)+(3*4)+(2*5)+(1*9)=146
146 % 10 = 6
So 81574-59-6 is a valid CAS Registry Number.

81574-59-6Relevant articles and documents

A ligand-free, powerful, and practical method for methoxylation of unactivated aryl bromides by use of the CuCl/HCOOMe/MeONa/MeOH system

Guo, Ying,Ji, Si-Zhe,Chen, Cheng,Liu, Hong-Wei,Zhao, Jian-Hong,Zheng, Yu-Lin,Ji, Ya-Fei

, p. 8651 - 8664 (2015)

A ligand-free, powerful, and practical method for mono and polymethoxylation of unactivated aryl bromides has been developed; CuCl was used as catalyst, HCOOMe as cocatalyst, and methanolic MeONa as both nucleophile and solvent. This eco-friendly procedure is characterized by operational simplicity, inexpensive substrates (unactivated mono to polybromoarenes), full conversion, and direct recovery of pure MeOH.

Depsidone Synthesis. Part 21. A New Synthesis of Grisa-2',5'-diene-3,4'-diones

Sargent, Melvyn V.

, p. 403 - 411 (2007/10/02)

Treatment of suitably substituted methyl 2-phenoxybenzoates with titanium(IV) chloride and dry hydrogen chloride afforded grisa-2',5'-diene-3,4'-diones in high yield.The structures of these compounds followed from their thermal stability, their methanolysis to methyl 2-(4-hydroxyphenoxy)benzoates, and their reductive cleavage to 2,4'-dihydrobenzophenones.Treatment of the benzophenones with base gave xanthones.An attempt to synthesize dehydrogriseofulvin (1) by this method failed.

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 81574-59-6