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94622-89-6

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94622-89-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 94622-89-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,6,2 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 94622-89:
(7*9)+(6*4)+(5*6)+(4*2)+(3*2)+(2*8)+(1*9)=156
156 % 10 = 6
So 94622-89-6 is a valid CAS Registry Number.

94622-89-6Relevant articles and documents

Focused ortho-Lithiation and Functionalization of p-Bromo- and p-Iodoanisole

Slocum,Jennings, John A.,Reinscheld, Thomas K.,Whitley, Paul E.

, p. 4400 - 4406 (2018/09/10)

By use of the strategy for ortho-lithiation (DoM) that conceptually diminishes the pKA difference between the ortho-H of the substrate and the conjugate acid of the metalating agent, effective metalation of bromine and iodine bearing aryl substrates can be carried out. As a set of prototypes, p-bromoanisole (p-BrA) and p-iodoanisole (p-IA) have been successfully ortho-metalated in promoted hydrocarbon media using ortho-lithiodimethylbenzylamine (o-LiDMBA) as the metalating agent. No hint of exchange of either halogen was noted using these conditions. These studies add to the emerging evidence of a hitherto unidentified acidifying effect on the proton(s) ortho- to a directing metalation group (DMG) by both a p-iodo and a p-bromo substituent.

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