Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1341155-49-4

Post Buying Request

1341155-49-4 Suppliers

Recommended suppliersmore

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

1341155-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1341155-49-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,4,1,1,5 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1341155-49:
(9*1)+(8*3)+(7*4)+(6*1)+(5*1)+(4*5)+(3*5)+(2*4)+(1*9)=124
124 % 10 = 4
So 1341155-49-4 is a valid CAS Registry Number.

1341155-49-4Relevant articles and documents

Aqueous copper nitrate catalyzed synthesis of 3-alkylideneoxindoles from α-diazo-ketoanilides

Mo, Shanyan,Yang, Zhanhui,Xu, Jiaxi

, p. 3923 - 3929 (2014/06/24)

An economical, practical, and green protocol with which to synthesize 3-alkylideneoxindoles from α-diazo-ketoanilides has been developed. The approach employs inexpensive Cu(NO3)2·3H 2O as catalyst and environmentally friendly water as solvent, and achieves moderate to excellent yields. The method has good tolerance to a range of N-alkyl and N-aryl groups, including electron-withdrawing and electron-donating groups on the aromatic ring, ortho-, meta-, and para-substituents, and -aliphatic and -aromatic keto groups. A plausible mechanism involving intramolecular aromatic metal carbene electrophilic addition as the key step is proposed. Inexpensive Cu(NO3)2· 3H2O catalyst and environmentally friendly water solvent are employed for the transformation of α-diazo-ketoanilides into 3-alkylidene- oxindoles. The process is easily handled, economical, environmentally friendly, and can be used to convert a broad range of substrates in moderate to excellent yields. An intramolecular aromatic metal carbene electrophilic addition mechanism is proposed. Copyright

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 1341155-49-4