Photoredox-Catalyzed Intramolecular Aminodifluoromethylation of Unactivated Alkenes
作者:Zuxiao Zhang、Xiaojun Tang、Charles S. Thomoson、William R. Dolbier
DOI:10.1021/acs.orglett.5b01616
日期:2015.7.17
A photoredox catalyzed aminodifluoromethylation of unactivated alkenes has been developed in which HCF2SO2Cl is used as the HCF2 radical source. Sulfonamides were active nucleophiles in the final step of a tandem addition/oxidation/cyclization process to form pyrrolidines, and esters were found to cyclize to form lactones. Thus, a variety of pyrrolidines and lactones were obtained in moderate to excellent
已经开发出未活化的烯烃的光氧化还原催化的氨基二氟甲基化,其中HCF 2 SO 2 Cl用作HCF 2自由基源。在串联加成/氧化/环化过程的最后步骤中,磺酰胺是活性亲核试剂,以形成吡咯烷,发现酯可环化以形成内酯。因此,以中等至优异的产率获得了各种吡咯烷和内酯。为了使环化反应有效,铜催化剂(Cu(dap)2 Cl)和碳酸银的组合对于抑制竞争的氯二氟烷基化过程至关重要。
Highly Selective Palladium-Catalyzed Intramolecular Chloroamination of Unactivated Alkenes by Using Hydrogen Peroxide as an Oxidant
作者:Guoyin Yin、Tao Wu、Guosheng Liu
DOI:10.1002/chem.201102776
日期:2012.1.9
Cheap and clean! A novel Pd‐catalyzed oxidative intramolecularchloroamination of unactivatedalkenes has been developed by usinghydrogenperoxide as an oxidant and CaCl2 as a chlorine source. A series of chlorinated piperidine derivatives has been obtained with high regio‐ and diastereoselectivities at room temperature (see scheme).
Pyrrole-Type compounds, compositions and methods for treating cancer or viral disease
申请人:Johnson A. Roy
公开号:US20070037856A1
公开(公告)日:2007-02-15
The present invention relates to novel Pyrrole-Type compounds, compositions comprising Pyrrole-Type compounds, and methods useful for treating or preventing cancer or a neoplastic disorder comprising administering a composition comprising a Pyrrole-Type compound. The compounds, compositions, and methods of the invention are also useful for inhibiting the growth of a cancer cell or neoplastic cell. The present invention also relates to novel Pyrrole-Type compounds, compositions, and methods useful for treating or preventing a viral infection. The compounds, compositions, and methods of the invention are also useful for inhibiting the replication and/or infectivity of a virus.
PLASMINOGEN ACTIVATOR INHIBITOR-1 INHIBITORS AND METHODS OF USE THEREOF TO MODULATE LIPID METABOLISM
申请人:THE REGENTS OF THE UNIVERSITY OF MICHIGAN
公开号:US20160009748A1
公开(公告)日:2016-01-14
The invention relates to plasminogen activator-1 (PAI-1) inhibitor compounds and uses thereof in the treatment of any disease or condition associated with elevated PAI-1. The invention includes, but is not limited to, the use of such compounds to modulate lipid metabolism and treat conditions associated with elevated PAI-1, cholesterol, or lipid levels.