Welcome to LookChem.com Sign In|Join Free

CAS

  • or

139228-26-5

Post Buying Request

139228-26-5 Suppliers

Recommended suppliersmore

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

139228-26-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139228-26-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,2 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139228-26:
(8*1)+(7*3)+(6*9)+(5*2)+(4*2)+(3*8)+(2*2)+(1*6)=135
135 % 10 = 5
So 139228-26-5 is a valid CAS Registry Number.

139228-26-5Relevant articles and documents

Use of methyl 2-iodo-2-(phenylsulfonyl)-4-pentenoate in atom-transfer radical cyclizations. Entry into annulation products containing carbonyl or exo-methylene functionality

Flynn,Zabrowski,Nosal

, p. 7281 - 7282 (2007/10/02)

Methyl 2-iodo-2-(phenylsulfonyl)-4-pentenoate (8) is reacted with N-BOC-allylamine to afford substituted 3-azabicyclo-[3.3.0]octanes (10) in a process which involves an initial iodine atom-transfer annulation followed by an ionic cyclization. The geminal carbomethoxy and phenylsulfonyl groups are then efficiently converted to either an exocyclic olefin or to a carbonyl group. The latter transformation allows phenylsulfonylacetates to be used as surrogates for acyl radicals in synthesis.

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 139228-26-5