Welcome to LookChem.com Sign In|Join Free

CAS

  • or

81097-22-5

Post Buying Request

81097-22-5 Suppliers

Recommended suppliersmore

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

81097-22-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81097-22-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,9 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81097-22:
(7*8)+(6*1)+(5*0)+(4*9)+(3*7)+(2*2)+(1*2)=125
125 % 10 = 5
So 81097-22-5 is a valid CAS Registry Number.

81097-22-5Relevant articles and documents

Gold(I)-catalyzed intra- and intermolecular hydroamination of unactivated olefins

Zhang, Junliang,Yang, Cai-Guang,He, Chuan

, p. 1798 - 1799 (2006)

Ph3PAuOTf catalyzes efficient intra- and intermolecular hydroamination of unactivated olefins with sulfonamides. Copyright

Photoredox-Catalyzed Intramolecular Aminodifluoromethylation of Unactivated Alkenes

Zhang, Zuxiao,Tang, Xiaojun,Thomoson, Charles S.,Dolbier, William R.

supporting information, p. 3528 - 3531 (2015/07/28)

A photoredox catalyzed aminodifluoromethylation of unactivated alkenes has been developed in which HCF2SO2Cl is used as the HCF2 radical source. Sulfonamides were active nucleophiles in the final step of a tandem addition/oxidation/cyclization process to form pyrrolidines, and esters were found to cyclize to form lactones. Thus, a variety of pyrrolidines and lactones were obtained in moderate to excellent yield. In order for the cyclization reactions to be efficient, a combination of a copper catalyst (Cu(dap)2Cl) and silver carbonate was crucial to suppressing a competing chloro, difluoroalkylation process.

Regioselective copper(II)-mediated bromoamination of unfunctionalized olefins: An efficient route to N-heterocyclic compounds

Liu, Gong-Qing,Ding, Zhen-Ying,Zhang, Li,Li, Ting-Ting,Li, Lin,Duan, Lili,Li, Yue-Ming

supporting information, p. 2303 - 2310 (2014/07/21)

Bromoamination of unfunctionalized olefins was realized under mild conditions using copper(II) bromide (CuBr2) as both reaction promoter and bromine source. The reactions could be carried out under open air at ambient temperature, and both N-alkylated and N-tosylated substrates could be converted to the corresponding N-heterocyclic compounds in high regioselectivity and good isolated yields. A variety of biologically important structures could be obtained via subsequent nucleophilic substitution reactions.

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 81097-22-5