Welcome to LookChem.com Sign In|Join Free

CAS

  • or

26908-83-8

Post Buying Request

26908-83-8 Suppliers

Recommended suppliersmore

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

26908-83-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 26908-83-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,9,0 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 26908-83:
(7*2)+(6*6)+(5*9)+(4*0)+(3*8)+(2*8)+(1*3)=138
138 % 10 = 8
So 26908-83-8 is a valid CAS Registry Number.

26908-83-8Relevant articles and documents

Acid-catalyzed cyclization of anthracenol derivatives to homotriptycenes

Gao, Chunmei,Cao, Derong,Xu, Sheyang,Meier, Herbert

, p. 3071 - 3076 (2007/10/03)

10-Benzyl-9,10-dihydroanthracen-9-ols, having high electron densities in the benzene ring, exhibit in the presence of acid a transannular ring closure to the corresponding homotriptycenes in almost quantitative yields. Since the starting compounds are easily accessible from 9(10H)-anthracenone, this process represents the most facile route to such pentacyclic systems. An electron-releasing methoxy group enables the intramolecular electrophilic substitution in its para position. In the absence of such an activation, a number of alternative processes can occur, namely the acid-catalyzed dehydration to anthracene derivatives with (R ≠ H) or without (R = H) rearrangement or a disproportionation reaction of the secondary alcohol to the corresponding ketone and hydrocarbon.

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 26908-83-8