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35122-84-0

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35122-84-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 35122-84-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,5,1,2 and 2 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 35122-84:
(7*3)+(6*5)+(5*1)+(4*2)+(3*2)+(2*8)+(1*4)=90
90 % 10 = 0
So 35122-84-0 is a valid CAS Registry Number.

35122-84-0Downstream Products

35122-84-0Relevant articles and documents

Syntheses of Highly Substituted Benzenes via Diels-Alder Reactions with 2H-Pyran-2-ones

Ziegler, Thomas,Layh, Marcus,Effenberger, Franz

, p. 1347 - 1356 (2007/10/02)

The 2H-pyran-2-ones (α-pyrones) 1 react as dienes in Diels-Alder reactions with acetylene derivatives.The primarely formed cycloadducts immediately aromatize to benzenes by CO2 elimination.Thus, methyl acetylenedicarboxylate (2a) gives dimethyl phthalates 3, and methyl acetylenediphosphonate (2b) gives dimethyl 1,2-phenylenediphosphonates 8.The reactions of 1-(dimethylamino)-1-methoxyethene (9) with 1 regioselectively produce N,N-dimethylanilines 10 and isomeric homophthalate derivatives 12.Naphthoquinones 14 could be generated from 1,4-benzoquinone (13) and 1 in the presence of acetic anhydride and Pd/C.Hydroxy-2H-pyran-2-ones 4 react via their trimethylsilyl ether 6 analogously with 2a to give dimethyl (trimethylsiloxy)phthalates 7 which are easily converted to phenols 5 by acid-catalyzed hydrolysis.

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