Cyrus G Takahashi

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New well-defined, paramagnetic nickel complexes have been prepared and characterized by X-ray crystallography. The complexes were found to be active for the cross-coupling of alkyl electrophiles (especially ethyl 2-bromobutyrate) with alkyl Grignard reagents. The ligand architecture in these new complexes could potentially be rendered chiral, opening up(More)
A new and versatile class of HNO donors, the (hydroxylamino)pyrazolone (HAPY) series of HNO donors utilizing pyrazolone (PY) leaving groups, is described. HNO, the smallest N-based aldehyde equivalent, is used as a reagent along with a variety of PY compounds to synthesize the desired HAPY donors in what can be considered an N-selective HNO-aldol reaction(More)
Due to its inherent reactivity, HNO must be generated in situ through the use of donor compounds. One of the primary strategies for the development of new HNO donors has been modifying hydroxylamines with good leaving groups. A recent example of this strategy is the (hydroxylamino)barbituric acid (HABA) class of HNO donors. In this case, however, an(More)
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