Welcome to LookChem.com Sign In|Join Free

CAS

  • or

215728-76-0

Post Buying Request

215728-76-0 Suppliers

Recommended suppliersmore

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

215728-76-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 215728-76-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,5,7,2 and 8 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 215728-76:
(8*2)+(7*1)+(6*5)+(5*7)+(4*2)+(3*8)+(2*7)+(1*6)=140
140 % 10 = 0
So 215728-76-0 is a valid CAS Registry Number.

215728-76-0Downstream Products

215728-76-0Relevant articles and documents

Catalytic Barbier-type reactions of lactones and esters mediated by the Mischmetall/SmI2(cat.) system or the Mischmetall/[SmI2/NiI2(cat'.)](cat.) system

Lannou, Marie-Isabelle,Hélion, Florence,Namy, Jean-Louis

, p. 8007 - 8010 (2007/10/03)

Barbier-type reactions using SmI2 in catalytic amounts together with Mischmetall as a coreductant, involving lactones or esters and a variety of organic halides (allylic, benzylic and alkyl), have been performed. With alkyl halides and five- or six-membered ring lactones, catalytic quantities of nickel diiodide (with respect to SmI2) must be added to achieve reactions. Thus, a 'two-stage catalysis' is carried out. Unexpectedly, it was found that with esters or an unstrained lactone the Mischmetall/SmI2 (catalytic) system is more reactive than samarium diiodide in stoichiometric amounts. Tentative interpretations of the catalytic role of NiI2 are proposed.

Organolithium reagents from alkyl phenyl ethers

Bachki, Abderrazak,Foubelo, Francisco,Yus, Miguel

, p. 7759 - 7762 (2007/10/03)

The reaction of primary alkyl or vinyl phenyl ethers (1) as well as 2,3- dihydrobenzofuran (3) with an excess of lithium powder and a catalytic amount of DTBB (5 %) in THF at room temperature leads to the corresponding organolithium intermediates, which by treatment with different electrophiles [H2O, D2O, Me3SiCl, Bu(t)CHO, PhCHO, Me2CO, Et2CO, (CH2)4CO, (CH2)5CO, PhCOMe] and final hydrolysis affords the expected products 2 and 4.

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 215728-76-0