Welcome to LookChem.com Sign In|Join Free

CAS

  • or

134271-35-5

Post Buying Request

134271-35-5 Suppliers

Recommended suppliersmore

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

134271-35-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134271-35-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,2,7 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 134271-35:
(8*1)+(7*3)+(6*4)+(5*2)+(4*7)+(3*1)+(2*3)+(1*5)=105
105 % 10 = 5
So 134271-35-5 is a valid CAS Registry Number.

134271-35-5Relevant articles and documents

Synthesis of 9,10-dihydrosilaanthracenes with substituents ortho to the silicon and methylene bridges

Bedard, Thomas C.,Corey, Joyce Y.,Lange, Lura D.,Rath, Nigam P.

, p. 261 - 272 (2007/10/02)

The generation of 9,10-dihydrosilaanthracenes with substituents on benzo ring carbons, specifically in the 4,5-positions adjacent to the methylene bridge, has been developed.Attempts to prepare the 1,8-isomer where the substituents are adjacent to the silicon bridge are also described.The diarylmethane precursors to the substituted 9,10-dihydrosilaanthracenes required the synthesis of 2,3-dihalotoluenes as well as isomeric 2,6-disubstituted benzaldehydes which were then condensed to diarylmethanols through the Grignard reagents.Ring closure to the 4,5-dimethyl-9,9-dialkyl-9,10-dihydro-9-silaanthracene, I, required the use of Rieke magnesium.The structure of I (alkyl = iPr) was determined and demonstrates that the introduction of substituents adjacent to the methylene bridge causes the dihydrosilaanthracene framework to become nearly planar with a dihedral (or butterfly) angle of 170 deg C.

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 134271-35-5