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1008139-19-2

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1008139-19-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1008139-19-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,8,1,3 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1008139-19:
(9*1)+(8*0)+(7*0)+(6*8)+(5*1)+(4*3)+(3*9)+(2*1)+(1*9)=112
112 % 10 = 2
So 1008139-19-2 is a valid CAS Registry Number.

1008139-19-2Downstream Products

1008139-19-2Relevant articles and documents

Synthesis of Vicinal Quaternary All-Carbon Centers via Acid-catalyzed Cycloisomerization of Neopentylic Epoxides

Schmid, Matthias,Sokol, Kevin R.,Wein, Lukas A.,Torres Venegas, Sofia,Meisenbichler, Christina,Wurst, Klaus,Podewitz, Maren,Magauer, Thomas

supporting information, p. 6526 - 6531 (2020/09/02)

We report our studies on the development of a catalytic cycloisomerization of 2,2-disubstituted neopentylic epoxides to produce highly substituted tetralins and chromanes. Termination of the sequence occurs via Friedel-Crafts-type alkylation of the remote (hetero)arene linker. The transformation is efficiently promoted by sulfuric acid and proceeds best in 1,1,1,3,3,3-hexafluoroisopropanol (HFIP) as the solvent. Variation of the substitution pattern provided detailed insights into the migration tendencies and revealed a competing disproportionation pathway of dihydronaphthalenes.

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