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1448446-94-3

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1448446-94-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1448446-94-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,8,4,4 and 6 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1448446-94:
(9*1)+(8*4)+(7*4)+(6*8)+(5*4)+(4*4)+(3*6)+(2*9)+(1*4)=193
193 % 10 = 3
So 1448446-94-3 is a valid CAS Registry Number.

1448446-94-3Downstream Products

1448446-94-3Relevant articles and documents

Regioselective inter- and intramolecular formal [4+2] cycloaddition of cyclobutanones with indoles and total synthesis of (±)-aspidospermidine

Kawano, Mizuki,Kiuchi, Takaaki,Negishi, Shoko,Tanaka, Hiroyuki,Hoshikawa, Takaya,Matsuo, Jun-Ichi,Ishibashi, Hiroyuki

supporting information, p. 906 - 910 (2013/02/26)

This way and that way: A formal [4+2] cycloaddition between various cyclobutanones and indoles proceeded efficiently under Lewis acid catalysis (see scheme; PG = protecting group). The regioselectivity of the reaction could be controlled in such a way that each of the two possible regioisomers of a cycloaddition product could be synthesized selectively. The usefulness of this reaction for the total synthesis of hydrocarbazole natural products was demonstrated. Copyright

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