Welcome to LookChem.com Sign In|Join Free

CAS

  • or

39648-71-0

Post Buying Request

39648-71-0 Suppliers

Recommended suppliersmore

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

39648-71-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39648-71-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,6,4 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 39648-71:
(7*3)+(6*9)+(5*6)+(4*4)+(3*8)+(2*7)+(1*1)=160
160 % 10 = 0
So 39648-71-0 is a valid CAS Registry Number.

39648-71-0Relevant articles and documents

A Rationally Designed, Chiral Levis Acid for the Asymmetric Induction of Some Diels-Alder Reactions

Kelly, T. Ross,Whiting, Andrew,Chandrakumar, Nizal S.

, p. 3510 - 3512 (1986)

-

Enantioselective vinylation of aldehydes with the vinyl Grignard reagent catalyzed by magnesium complex of chiral BINOLs

Wang, Pei,Ma, Guo-Rong,Yu, Sheng-Li,Da, Chao-Shan

supporting information, p. 79 - 86 (2018/12/13)

Enantioselective vinylation of aldehydes via direct catalytic asymmetric Grignard reaction of aldehdyes and the vinyl Grinard reagent is a long-standing challenge. This work demonstrated that the magnesium (S)-3,3′-dimethyl BINOLate enantioselectively catalyze the direct vinylation of aldehydes with the deactivated vinylmagnesium bromide by bis(2-[N,N′-dimethylamino]ethyl) ether (BDMAEE) in the addition of n-butylmagnesium chloride. The highest ee of 63% was achieved up to date.

Direct asymmetric reductive amination for the synthesis of (S)-rivastigmine

Gao, Guorui,Du, Shaozhi,Yang, Yang,Lei, Xue,Huang, Haizhou,Chang, Mingxin

supporting information, (2018/09/10)

In this article we demonstrate how asymmetric total synthesis of (S)-rivastigmine has been achieved using direct asymmetric reductive amination as the key transformation in four steps. The route started with readily available and cheap m-hydroxyacetophenone, through esterification, asymmetric reductive amination, N-diphenylmethyl deprotection and reductive amination, to provide the final (S)-rivastigmine in 82% overall yield and 96% enantioselectivity. In the asymmetric reductive amination, catalysed by the iridium–phosphoramidite ligand complex and helped by some additives, the readily prepared 3-acetylphenyl ethyl(methyl)carbamate directly reductively coupled with diphenylmethanamine to yield the chiral amine product in 96% ee and 93% yield.

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 39648-71-0