Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1239691-88-3

Post Buying Request

1239691-88-3 Suppliers

Recommended suppliersmore

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

1239691-88-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1239691-88-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,6,9 and 1 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1239691-88:
(9*1)+(8*2)+(7*3)+(6*9)+(5*6)+(4*9)+(3*1)+(2*8)+(1*8)=193
193 % 10 = 3
So 1239691-88-3 is a valid CAS Registry Number.

1239691-88-3Downstream Products

1239691-88-3Relevant articles and documents

On the scope of Pd-catalyzed carboamination reactions - Synthesis of 2,4-disubstituted pyrrolidines and 2-substituted piperidines and morpholines

Jepsen, Tue Heesgaard,Larsen, Mogens,Nielsen, Mogens Br?ndsted

experimental part, p. 6133 - 6137 (2010/09/15)

The scope of the palladium-catalyzed carboamination reaction for the synthesis of 2-substituted pyrrolidines, piperidines, and morpholines was investigated. Formation of a 2,4-disubstituted pyrrolidine proceeded in high yield but with a diastereoisomeric ratio of only 2:5, favoring the cis-isomer. The diastereoselectivity is hence significantly smaller than that observed previously in the formation of 2,3- and 2,5-disubstituted pyrrolidines. The yields of substituted piperidines and morpholines were lowered by competing Heck arylation reactions. Both the N-substituent and the choice of phosphine ligand for the palladium-catalyzed reaction were determining for the outcome. The scope of the palladium-catalyzed carboamination reaction for the synthesis of 2-substituted pyrrolidines, piperidines, and morpholines was investigated.

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 1239691-88-3