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108291-44-7

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108291-44-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 108291-44-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,2,9 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 108291-44:
(8*1)+(7*0)+(6*8)+(5*2)+(4*9)+(3*1)+(2*4)+(1*4)=117
117 % 10 = 7
So 108291-44-7 is a valid CAS Registry Number.

108291-44-7Downstream Products

108291-44-7Relevant articles and documents

Metal-assisted Reactions. Part 17. Ring-opening and Dimerization of Cyclic Ethers by Titanium Halides

Delaney, Paul A.,Johnstone, Robert A. W.,Entwistle, Ian D.

, p. 1855 - 1860 (2007/10/02)

Reaction of TiCl4 or TiBr4 with a variety of cyclic ethers gives, predominantly, products resulting from simple ring-opening or from ring-opening with simultaneous condensation to dimeric species.The variations in yields of these two kinds of products might be correlated qualitatively with an initial formation of the complex TiX4*2E (X = Cl or Br; E = cyclic ether) in which the ethers were held in a cis or trans relationship.Although such a correlation might suggest that TiCl4 but not TiBr4 exerts a template effect on the condensation, stereochemical considerations of the reaction products indicate otherwise.TiCl3 and VCl3 do not give similar results and TiF4 gives no reaction.

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