A mild method for regioselective labeling of aromatics with radioactive iodine

A novel technique to label ortho-, meta-, and para-trimethylsilyl-substituted aryl substituents with radioactive iodide is described. The method takes advantage of the ipso-directing and activating properties of trimethylsilyl substituents on the arenes. The method was demonstrated on a griseofulvin...

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Main Authors: Rønnest, Mads H. (Author) , Nissen, Felix (Author) , Pedersen, Palle J. (Author) , Larsen, Thomas O. (Author) , Mier, Walter (Author) , Clausen, Mads H. (Author)
Format: Article (Journal) Editorial
Language:English
Published: May 14, 2013
In: European journal of organic chemistry
Year: 2013, Issue: 19, Pages: 3970-3973
ISSN:1099-0690
DOI:10.1002/ejoc.201300419
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/ejoc.201300419
Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/ejoc.201300419
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Author Notes:Mads H. Rønnest, Felix Nissen, Palle J. Pedersen, Thomas O. Larsen, Walter Mier, and Mads H. Clausen
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Summary:A novel technique to label ortho-, meta-, and para-trimethylsilyl-substituted aryl substituents with radioactive iodide is described. The method takes advantage of the ipso-directing and activating properties of trimethylsilyl substituents on the arenes. The method was demonstrated on a griseofulvin analogue with promising anticancer properties and on lidocaine, a widely used local anesthetic drug. Treatment of a trimethylsilyl precursor with Tl(OCOCF3)3 followed by Na125I consistently afforded radioactive purities over 95 % in all cases.
Item Description:Gesehen am 19.01.2022
Physical Description:Online Resource
ISSN:1099-0690
DOI:10.1002/ejoc.201300419