Embodiments of the invention provide methods and materials for chemical cross-coupling reactions that utilize unconventional phenol derivatives as cross-coupling partners. Embodiments of the invention can be used to synthesize a variety of useful organic compounds, for example the anti-inflammatory drug flurbiprofen.
The formal total synthesis of dragmacidin B, trans-dragmacidin C, and cis- and trans-dihydrohamacanthins A
作者:Neil K. Garg、Brian M. Stoltz
DOI:10.1016/j.tetlet.2005.02.054
日期:2005.4
A facile formal totalsynthesis of dragmacidinB, trans-dragmacidin C, and cis- and trans-dihydrohamacanthins A is presented. Our approach to these bis(indole) alkaloids involves a one-pot, four-step cross-coupling/deprotection sequence where complete halogen selectivity is observed. A related approach to access the dihydrohamacanthins is also described.
Cross-Coupling Reactions of Aryl Pivalates with Boronic Acids
作者:Kyle W. Quasdorf、Xia Tian、Neil K. Garg
DOI:10.1021/ja806244b
日期:2008.11.5
The first cross-coupling of acylated phenol derivatives has been achieved. In the presence of an air-stable Ni(II) complex, readily accessible aryl pivalates participate in the Suzuki-Miyaura coupling with arylboronicacids. The process is tolerant of considerable variation in each of the cross-coupling components. In addition, a one-pot acylation/cross-coupling sequence has been developed. The potential