Welcome to LookChem.com Sign In|Join Free

CAS

  • or

188772-74-9

Post Buying Request

188772-74-9 Suppliers

Recommended suppliersmore

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

188772-74-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188772-74-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,7,7 and 2 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 188772-74:
(8*1)+(7*8)+(6*8)+(5*7)+(4*7)+(3*2)+(2*7)+(1*4)=199
199 % 10 = 9
So 188772-74-9 is a valid CAS Registry Number.

188772-74-9Relevant articles and documents

Highly enantioselective synthesis of (diarylmethyl)amines by rhodium-catalyzed arylation of N-nosylimines using a chiral bicyclo[3.3.0]diene ligand

Wang, Li,Wang, Zhi-Qian,Xu, Ming-Hua,Lin, Guo-Qiang

experimental part, p. 3263 - 3267 (2010/11/18)

A highly efficient asymmetric arylation of N-nosylimines with arylboronic acids catalyzed by a rhodium-diene complex is described. A wide range of enantiopure (98-99% ee) N-(diarylmethyl)nosylamides, as well as (3S)-2-(4-nosyl)-3-phenylisoindolin-1-one, were obtained in high yields (83-99%) under very mild conditions. Georg Thieme Verlag Stuttgart New York.

Synthesis of (S)- and (R)-1-(2-furyl)alkylamines and (S)- and (R)-α- amino acids through the addition of organometallic reagents to imines derived from (S)-Valinol

Alvaro, Giuseppe,Martelli, Gianluca,Savoia, Diego,Zoffoli, Andrea

, p. 1773 - 1777 (2007/10/03)

(S)-1-(2-Furyl)alkylamines were prepared through the addition of organometallic reagents to the imine derived from 2-furaldehyde and (S)- valinol, previous protection of the auxiliary hydroxy group as trimethylsilyl ether, followed by removal of the auxiliary. Then, protection of the primary amine as tosylamide or benzamide and oxidation of the furan ring gave the N- derivatives of (S)-α-amino acids. (R)-N-Benzoylphenylglycine was prepared from the benzaldimine, where the hydroxy group was protected as the tert- butyldimethylsilyl ether, through addition of 2-furyllithium.

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 188772-74-9