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24672-87-5

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24672-87-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 24672-87-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,6,7 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 24672-87:
(7*2)+(6*4)+(5*6)+(4*7)+(3*2)+(2*8)+(1*7)=125
125 % 10 = 5
So 24672-87-5 is a valid CAS Registry Number.

24672-87-5Relevant articles and documents

Intramolecular cycloadditions with isobenzofurans - X. A novel synthesis of annulated hydroquinolines

Peters, Olaf,Friedrichsen, Willy

, p. 8581 - 8582 (1995)

The intramolecular Diels-Alder reaction of 1-amino substituted isobenzofuran 3 leads to hydrobenzo[h] quinolines (5,6).

Intramolecular cycloadditions with 1-aminoisobenzofurans: a simple entry into the field of polycyclic aza-compounds

Peters, Olaf,Debaerdemaeker, Tony,Friedrichsen, Willy

, p. 59 - 70 (2007/10/03)

Starting with 6-methoxyisochromane-1,3-dione (1) isobenzofuran 5 was generated in situ using the Hamaguchi-Ibata methodology. Intramolecular cycloaddition with subsequent transformations provides benzoquinolines of type 7, 8 and 9. In a similar manner 11-azasteroid analogues (22-26) were obtained, starting with 1 and amine 18. Density functional theoretical (DFT) studies of various inter- and intramolecular Diels-Alder reactions are reported.

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