Welcome to LookChem.com Sign In|Join Free

CAS

  • or

815598-55-1

Post Buying Request

815598-55-1 Suppliers

Recommended suppliersmore

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

815598-55-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 815598-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,5,5,9 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 815598-55:
(8*8)+(7*1)+(6*5)+(5*5)+(4*9)+(3*8)+(2*5)+(1*5)=201
201 % 10 = 1
So 815598-55-1 is a valid CAS Registry Number.

815598-55-1Upstream product

815598-55-1Relevant articles and documents

Stereoselective synthesis of 19-hydroxytaxoid by utilizing samarium(II) iodide-mediated double aldol cyclization

Ogawa, Yasuyuki,Kuroda, Kiichi,Matsuo, Jun-Ichi,Mukaiyama, Teruaki

, p. 677 - 697 (2007/10/03)

The stereoselective synthesis of new 19-hydroxytaxoid 36, possessing a double-aldol skeleton was achieved by way of B to BC to ABC ring construction. Optically active 8-membered ring 6 corresponding to the B-ring of 19-hydroxytaxol has been synthesized in high yield from epoxyketo aldehyde 8 by intramolecular samarium(II) iodide-mediated double aldol cyclization. The bicyclic compound 5 corresponding to the BC ring system was prepared from the 8-membered ring 6 by successive trimethylaluminium-assisted stereoselective conjugated addition and intramolecular samarium(II) iodide-mediated double aldol cyclization. The ABC-ring system 4 was constructed by stereoselective homoallylation and pinacol coupling cyclization with low-valent titanium. The synthesis of new 19-hydroxytaxoid 36 was accomplished from ABC ring system 4 by olefination of vicinal diol unit.

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 815598-55-1