Welcome to LookChem.com Sign In|Join Free

CAS

  • or

219954-64-0

Post Buying Request

219954-64-0 Suppliers

Recommended suppliersmore

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

219954-64-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219954-64-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,5 and 4 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 219954-64:
(8*2)+(7*1)+(6*9)+(5*9)+(4*5)+(3*4)+(2*6)+(1*4)=170
170 % 10 = 0
So 219954-64-0 is a valid CAS Registry Number.

219954-64-0Relevant articles and documents

Total synthesis of (-)-macrocarpal C. Stereoselective coupling reaction with a novel hexasubstituted benzene Cr(CO)3 complex as a biomimetic chiral benzyl cation equivalent

Tanaka, Tetsuaki,Mikamiyama, Hidenori,Maeda, Kimiya,Iwata, Chuzo,In, Yasuko,Ishida, Toshimasa

, p. 9782 - 9793 (2007/10/03)

The first total synthesis of (-)-macrocarpal C (3) is described. The synthesis features a highly stereoselective coupling reaction of silyldienol ether 6 with biomimetic benzyl cation species (R)- and (S)-B, which were generated from novel hexasubstituted benzene chromium tricarbonyl complexes (R)- and (S)-17. At the final step of the total synthesis, we developed the tris-O-demethylation of macrocarpal C trimethyl ether 34 under basic conditions using lithium p-thiocresolate. Moreover, spectroscopic evidence shows that the synthetic (-)-3 is identical to natural macrocarpal G (4).

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 219954-64-0