Welcome to LookChem.com Sign In|Join Free

CAS

  • or

124251-46-3

Post Buying Request

124251-46-3 Suppliers

Recommended suppliersmore

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

124251-46-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124251-46-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,2,5 and 1 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 124251-46:
(8*1)+(7*2)+(6*4)+(5*2)+(4*5)+(3*1)+(2*4)+(1*6)=93
93 % 10 = 3
So 124251-46-3 is a valid CAS Registry Number.

124251-46-3Relevant articles and documents

Acetamidinosulphenylation of Alkynes via Electrophilic Addition of 4'-Substituted Benzenesulphenanilides in Acetonitrile

Benati, Luisa,Montevecchi, P. Carlo,Spagnolo, Piero

, p. 1105 - 1111 (2007/10/02)

A number of 4'-substituted benzenesulphenanilides and N-methyl-4'-nitrobenzenesulphenanilide are shown to add to simple alkynes in acetonitrile in the presence of boron trifluoride-diethyl ether to give acetamidinovinyl sulphides in varying yields.Addition is largely favoured by dialkyl substitution on the alkyne and by electron-attracting anilide substituents.Moreover, the azasulphenylation adducts are produced with trans stereospecificity and high regioselectivity (Markovnikov orientation).A likely mechanism involves nucleophilic displacement by the alkyne at the activated sulphur of the anilide complexed with boron trifluoride leading to the initial formation of a thiirenium ion intermediate.Subsequent back-side attack of acetonitrile on the thiirenium ion gives a nitrilium ion which is ultimately trapped by the liberated arylamine.

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 124251-46-3