Welcome to LookChem.com Sign In|Join Free

CAS

  • or

75032-33-6

Post Buying Request

75032-33-6 Suppliers

Recommended suppliersmore

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

75032-33-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75032-33-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,0,3 and 2 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 75032-33:
(7*7)+(6*5)+(5*0)+(4*3)+(3*2)+(2*3)+(1*3)=106
106 % 10 = 6
So 75032-33-6 is a valid CAS Registry Number.

75032-33-6Downstream Products

75032-33-6Relevant articles and documents

Neighboring-Group Participation by Hydroxyl Oxygen in Nucleophilic Aromatic Substitution. Smiles Rearrangements of (ω-Hydroxyalkyl)methyl(p-nitrophenyl)sulfonium Perchlorates in Aqueous Alkali

Irie, Tadashi,Tanida, Hiroshi

, p. 4961 - 4965 (2007/10/02)

(2-Hydroxyethyl)- (1), (3-hydroxy-n-propyl)- (2), and (4-hydroxy-n-butyl)methyl(p-nitrophenyl)sulfonium perchlorates (3) were prepared.Products by Smiles rearrangements (intramolecular SNAr reactions) were obtained from 1 as β-(methylthio)ethyl p-nitrophenyl ether (9) in 37-42percent yield and from 2 as γ-(methylthio)propyl p-nitrophenyl ether (8) in quantitative yields, and none were obtained from 3.The rearrangement rates and yields were compared with an intermolecular SN2 reaction of dimethyl(p-nitrophenyl)sulfonium perchlorate (4) (displacement of the sulfonium group by a n-propoxy group) to estimate participation by the ω-hydroxyl oxygen.The rate ratios between the rearrangements (first order) and the SN2 n-propoxy attack (second order), effective molarities, were obtained as 6.02 * 103 M for 1 vs. 4 and 4.64 * 103 M for 2 vs. 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 75032-33-6