Welcome to LookChem.com Sign In|Join Free
  • or
diethyl 2-diphenylphosphinoylbutanedioate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

33493-50-4

Post Buying Request

33493-50-4 Suppliers

Recommended suppliers

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

33493-50-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33493-50-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,4,9 and 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 33493-50:
(7*3)+(6*3)+(5*4)+(4*9)+(3*3)+(2*5)+(1*0)=114
114 % 10 = 4
So 33493-50-4 is a valid CAS Registry Number.

33493-50-4Relevant academic research and scientific papers

Potassium carbonate promoted nucleophilic addition of alkenes with phosphites

Huang, Zhenjun,Liu, Wei,Li, Sen,Yang, Yutian,Guo, Shengmei,Cai, Hu

supporting information, p. 1295 - 1297 (2020/08/21)

A facile hydrophosphonylation of alkenes by phosphites promoted by potassium carbonate was developed. The reaction features include easy handling, environmental friendliness, and avoidance of the use of strong bases. A variety of alkenes are tolerated in this reaction, with moderate to excellent yields.

PHASE-TRANSFER ALKYLATION OF ETHYL DIPHENYLPHOSPHINOYLACETATE

Yarkevich, A. N.,Tsvetkov, E. N.

, p. 1451 - 1455 (2007/10/03)

Phase-transfer C-alkylation of ethyl diphenylphosphinoylacetate by primary alkyl halides with and without a solvent in the presence of K2CO3 and Cs2CO3 as bases gives exclusively monoalkylated products.Terminal dihalides and oligoethylene glycol bis(p-toluenesulfonates) form products of both mono- and cycloalkylation, as well as diphosphinoyl compounds, depending on the length of the hydrocarbon or oligoether chain and the reactant ratio.In all the cases studied, addition of Cs2CO3 substantially accelerates the reaction.

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 Customer Service

What can I do for you?
Get Best Price

Get Best Price for 33493-50-4