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1227009-32-6

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1227009-32-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1227009-32-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,7,0,0 and 9 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1227009-32:
(9*1)+(8*2)+(7*2)+(6*7)+(5*0)+(4*0)+(3*9)+(2*3)+(1*2)=116
116 % 10 = 6
So 1227009-32-6 is a valid CAS Registry Number.

1227009-32-6Relevant articles and documents

Two versatile and parallel approaches to highly symmetrical open and closed natural product-based structures

Montenegro, Hector E.,Ramirez-Lopez, Pedro,De La Torre, Maria C.,Asenjo, Maria,Sierra, Miguel A.

supporting information; experimental part, p. 3798 - 3814 (2010/07/05)

Two parallel approaches for preparing diverse and highly symmetrical homohybrids derived from a series of mono- and diterpenes, steroids, and alkaloids are reported. Both procedures are based on the mono-addition of bis(alkynyl) dilithium reagents to natural products having a carbonyl group to produce the corresponding al-kynyl derivatives. The Glaser-Hay Cu-promoted homocoupling of these al-kynyl natural product mono-adducts as well as the Huisgen Cu-catalyzed azide-alkyne cycloaddition (CuAAC) reaction resulted in the synthesis of ste-roid-, terpene-, and alkaloid-based ho-mohybrid derivatives incorporating di-verse spacers to join the natural product scaffolds. Straightforward entries to novel closed highly symmetrical and complex estrone-based macrocyclic and cage architectures by means of the Glaser-Eglinton homocoupling and the CuAAC reaction have been devised.

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