Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1636138-33-4

Post Buying Request

1636138-33-4 Suppliers

Recommended suppliersmore

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

1636138-33-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1636138-33-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,6,1,3 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1636138-33:
(9*1)+(8*6)+(7*3)+(6*6)+(5*1)+(4*3)+(3*8)+(2*3)+(1*3)=164
164 % 10 = 4
So 1636138-33-4 is a valid CAS Registry Number.

1636138-33-4Downstream Products

1636138-33-4Relevant articles and documents

Synthesis and characterization of n-substituted (S)-1,2,3,4-tetrahydroisoquinoline-3-carboxamides and thioamides as organocatalysts for asymmetric aldol reaction

Androvic, Ladislav,Drabina, Pavel,Panov, Illia,Harmand, Lydie,Padelkova, Zdenka,Sedlak, Milos

, p. 1844 - 1859 (2014/08/18)

In this paper, the preparation and characterization of eight optically pure N-functionalized (S)-1,2,3,4-tetrahydroisoquinoline-3-carboxamides and thioamides is described. The prepared amides and thioamides were tested as organocatalysts of aldol reaction of 4-nitrobenzaldehyde and acetone. The highest ee of formation of 4-hydroxy-4-(4-nitrophenyl)butan-2-one was obtained with (S)-N-[(1R)-1-phenylethyl]-1,2,3,4-tetrahydroisoquinoline-3-thiocarboxamide (77% ee). The observed deceleration of the aldol reaction catalyzed in this way, as compared with that catalyzed with (S)-proline, was attributed to the formation of little reactive cyclic intermediate, which was isolated and characterized.

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 1636138-33-4