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859103-39-2

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859103-39-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 859103-39-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,1,0 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 859103-39:
(8*8)+(7*5)+(6*9)+(5*1)+(4*0)+(3*3)+(2*3)+(1*9)=182
182 % 10 = 2
So 859103-39-2 is a valid CAS Registry Number.

859103-39-2Relevant articles and documents

Synthesis of a tetrasubstituted arylphosphonate via the anionic phospho-Fries rearrangement

Jayasundera, Krishanthi P.,Watson, Amy J.,Taylor, Carol M.

, p. 4311 - 4313 (2005)

The anionic phospho-Fries rearrangement of phosphoric acid (3,5-di-isopropoxy)phenyl ester diethyl ester (11) gave rise to (2-hydroxy-4,6-di-isopropoxy-phenyl)phosphonic acid diethyl ester (12) in excellent yield. The phenol functionality of 12 was converted to the corresponding triflate which was coupled with vinyltributylstannane, under Stille conditions, to give a styrene. This molecule is intended to serve as the aromatic fragment in the synthesis of a phosphorus-based transition-state analogue for the hydrolysis of the S-(-)-zearalenone lactone.

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