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22249-54-3

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22249-54-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22249-54-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,2,4 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 22249-54:
(7*2)+(6*2)+(5*2)+(4*4)+(3*9)+(2*5)+(1*4)=93
93 % 10 = 3
So 22249-54-3 is a valid CAS Registry Number.

22249-54-3Relevant articles and documents

Some unusual transformations of a highly reactive α-bromocaranone

Samkian, Adrian E.,Sercel, Zachary P.,Virgil, Scott C.,Stoltz, Brian M.

supporting information, (2022/01/04)

The facile synthesis of a highly reactive α-bromocaranone from (+)-carene is reported. This intermediate was found to generate diverse chiral building blocks through radical or carbocation mediated cyclopropyl fragmentation reactions in moderate to excellent yields. Furthermore, the formation of an unexpected carvone derivative prompted several control studies that provided mechanistic insight into an unusual transformation. This study not only demonstrates the synthesis of a variety of chiral building blocks but provides insight into the reactivity of keto-halo-cyclopropanes in general.

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