Welcome to LookChem.com Sign In|Join Free

CAS

  • or

134920-72-2

Post Buying Request

134920-72-2 Suppliers

Recommended suppliersmore

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

134920-72-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134920-72-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,9,2 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 134920-72:
(8*1)+(7*3)+(6*4)+(5*9)+(4*2)+(3*0)+(2*7)+(1*2)=122
122 % 10 = 2
So 134920-72-2 is a valid CAS Registry Number.

134920-72-2Downstream Products

134920-72-2Relevant articles and documents

SYNTHESE CHIRALER PHOSPHINOXIDE UND PHOSPHINE DURCH MICHAELIS-ARBUZOV-UMLAGERUNG

Brunner, H.,Zettlmeier, W.

, p. 247 - 257 (2007/10/02)

Several phosphinites and phosphites, derived from chiral alcohols, were synthesized.The phosphinites were subjected to a I2-catalyzed Michaelis-Arbuzov rearrangement.Phosphinites derived from primary alcohols give satisfactory yields of the corresponding phosphineoxides.Phosphinites synthesized from secondary alcohols also undergo the rearrangement but numerous byproducts appear in the reaction mixtures.Optical resolutions of chiral phosphineoxides by crystallization with optically active acids were not successful.The corresponding phosphines can easily be prepared by reduction of the oxides with trichlorosilane.

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 134920-72-2