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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Use of a boroxazolidone complex of 3-iodo-L-tyrosine for palladium-catalyzed cross-coupling.

Complexation of 3-iodo-L-tyrosine with 9-borabicyclo[3.3.1]nonane (9-BBN) provides a convenient substrate for a palladium-catalyzed coupling reaction. The complex is stable to silica gel chromatography (hexanes/ethyl acetate), dilute triethylamine in THF, and potassium fluoride in DMF. The desired product, 3-ethynyl-L-tyrosine, was released from the complex by simply diluting its solution in methanol with chloroform. Interestingly, the complex remains stable in solutions of either methanol or chloroform individually.[1]

References

  1. Use of a boroxazolidone complex of 3-iodo-L-tyrosine for palladium-catalyzed cross-coupling. Walker, W.H., Rokita, S.E. J. Org. Chem. (2003) [Pubmed]
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