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150112-08-6

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150112-08-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 150112-08-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,0,1,1 and 2 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 150112-08:
(8*1)+(7*5)+(6*0)+(5*1)+(4*1)+(3*2)+(2*0)+(1*8)=66
66 % 10 = 6
So 150112-08-6 is a valid CAS Registry Number.

150112-08-6Relevant articles and documents

Regioselective upper-rim functionalizations of calix[4]arene by diphenylphosphino groups

Gagnon,Veniza,Drouin,Harvey

, p. 1439 - 1446 (2001)

The regioselective upper-rim functionalization of calix[4]arene have been performed to prepare all the multisubstituted diphenylphosphine derivatives. In addition, the X-ray structures of 5,17-dibromo-11,23-bis(diphenylphosphino)-25,26,27,28-tetra-n-propoxycalix [4]arene and 5,11,17,23-tetrakis(diphenylphosphino)-25,26,27,28-tetra-i-propoxy-calix[4] arene have been determined. Regioselective functionalizations have been achieved using methods that involve appropriate choices of bases, alkyllithium-solvent systems, stoichiometry, and reaction times. A new and convenient method for selectively preparing derivitized calix[4]arenes at proximal positions in relative large scale quantity has been developed and involves a transesterification of the distal diester derivative into the proximal isomer.

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