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122903-58-6

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122903-58-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 122903-58-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,9,0 and 3 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 122903-58:
(8*1)+(7*2)+(6*2)+(5*9)+(4*0)+(3*3)+(2*5)+(1*8)=106
106 % 10 = 6
So 122903-58-6 is a valid CAS Registry Number.

122903-58-6Downstream Products

122903-58-6Relevant articles and documents

Access to "friedel-Crafts-Restricted" tert -alkyl aromatics by activation/methylation of tertiary benzylic alcohols

Hartsel, Joshua A.,Craft, Derek T.,Chen, Qiao-Hong,Ma, Ming,Carlier, Paul R.

experimental part, p. 3127 - 3133 (2012/05/20)

Herein we describe a two-step protocol to prepare m-tert-alkylbenzenes. The appropriate tertiary benzylic alcohols are activated with SOCl2 or concentrated HCl and then treated with trimethylaluminum, affording the desired products in 68-97% yields (22 examples). This reaction sequence is successful in the presence of a variety of functional groups, including acid-sensitive and Lewis-basic groups. In addition to t-Bu groups, 1,1-dimethylpropyl and 1-ethyl-1-methylpropyl groups can also be installed using this method.

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