General Paradigm in Photoredox Nickel‐Catalyzed Cross‐Coupling Allows for Light‐Free Access to Reactivity
作者:Rui Sun、Yangzhong Qin、Daniel G. Nocera
DOI:10.1002/anie.201916398
日期:2020.6.8
Self‐sustained NiI/III cycles are established as a potentially generalparadigm in photoredox Ni‐catalyzed carbon–heteroatom cross‐coupling reactions through a strategy that allows us to recapitulate photoredox‐like reactivity in the absence of light across a wide range of substrates in the amination, etherification, and esterification of aryl bromides, the latter of which has remained, hitherto, elusive
自我维持的Ni I / III循环被确立为光氧化还原Ni催化的碳-杂原子交叉偶联反应中的潜在一般范式,其策略是使我们能够在没有光的情况下在各种各样的底物上重现类似光氧化还原的反应性。在芳基溴化物的胺化,醚化和酯化反应中,迄今为止,后者在热镍催化下仍然难以捉摸。此外,在没有光照的情况下酯化的可及性尤其显着,因为先前在光氧化还原条件下对该转化进行的机理研究一致地调用了能量转移介导的途径。
Nickel‐Catalyzed Amination of (Hetero)aryl Halides Facilitated by a Catalytic Pyridinium Additive
作者:Dongyang Han、Sasa Li、Siqi Xia、Mincong Su、Jian Jin
DOI:10.1002/chem.202002800
日期:2020.9.25
An efficient and operationally simple Ni‐catalyzed amination protocol has been developed. This methodology features a simple NiII salt, an organic base and catalytic amounts of both a pyridinium additive and Zn metal. A diverse number of (hetero)aryl halides were coupled successfully with primary and secondary alkyl amines, and anilines in good to excellent yields. Similarly, benzophenone imine gave
[EN] SATURATED BICYCLIC HETEROCYCLIC DERIVATIVES AS SMO ANTAGONISTS<br/>[FR] DÉRIVÉS HÉTÉROCYCLIQUES BICYCLIQUES SATURÉS EN TANT QU'ANTAGONISTES DE SMO
申请人:ANGELETTI P IST RICHERCHE BIO
公开号:WO2010023480A1
公开(公告)日:2010-03-04
The present invention relates to compounds of formula I: and pharmaceutically acceptable salts or tautomers thereof which are inhibitors of the Sonic Hedgehog pathway, in particular Smoantagonists. Thus the compounds of this invention are useful for the treatment of diseases associated with abnormal hedgehog pathway activation, including cancer, for example basal cell carcinoma, medulloblastoma, prostate, pancreatic, breast, colon, bone and small cell lung cancers, and cancers of the upper GI tract.
Direct sulfonylation of anilines mediated by visible light
作者:Tarn C. Johnson、Bryony L. Elbert、Alistair J. M. Farley、Timothy W. Gorman、Christophe Genicot、Bénédicte Lallemand、Patrick Pasau、Jakub Flasz、José L. Castro、Malcolm MacCoss、Darren J. Dixon、Robert S. Paton、Christopher J. Schofield、Martin D. Smith、Michael C. Willis
DOI:10.1039/c7sc03891g
日期:——
biologically active molecules and are key functional groups for organic synthesis. We report a mild, photoredox-catalyzed reaction for sulfonylation of aniline derivatives with sulfinate salts, and demonstrate the utility of the method by the late-stage functionalization of drugs. Key features of the method are the straightforward generation of sulfonyl radicals from bench-stable sulfinate salts and the
SATURATED BICYCLIC HETEROCYCLIC DERIVATIVES AS SMO ANTAGONISTS
申请人:Branca Danila
公开号:US20110183989A1
公开(公告)日:2011-07-28
The present invention relates to compounds of formula I: and pharmaceutically acceptable salts or tautomers thereof which are inhibitors of the Sonic Hedgehog pathway, in particular Smoantagonists. Thus the compounds of this invention are useful for the treatment of diseases associated with abnormal hedgehog pathway activation, including cancer, for example basal cell carcinoma, medulloblastoma, prostate, pancreatic, breast, colon, bone and small cell lung cancers, and cancers of the upper GI tract.