Divergent reactivity of sulfinates with pyridinium salts based on one- <i>versus</i> two-electron pathways
作者:Myojeong Kim、Euna You、Seongjin Park、Sungwoo Hong
DOI:10.1039/d1sc00776a
日期:——
is to develop distinct reaction pathways from identical starting materials for the efficient synthesis of diverse compounds. Herein, we disclose the unique divergent reactivity of the combination sets of pyridiniumsalts and sulfinates to achieve sulfonative pyridylation of alkenes and direct C4-sulfonylation of pyridines by controlling the one- versus two-electron reaction manifolds for the selective
Oxadiazolopyridine Derivates for Use as Ghrelin O-Acyl Transferase (GOAT) Inhibitors
申请人:Boehringer Ingelheim International GmbH
公开号:US20180037594A1
公开(公告)日:2018-02-08
The present invention relates to compounds of general formula I,
wherein the groups R
1
, R
2
and n are defined as in claim
1
, which have valuable pharmacological properties, in particular bind to ghrelin O-acyl transferase (GOAT) and modulate its activity. The compounds are suitable for treatment and prevention of diseases which can be influenced by this receptor, such as metabolic diseases, in particular obesity.
Micelle-enabled clean and selective sulfonylation of polyfluoroarenes in water under mild conditions
作者:Justin D. Smith、Tharique N. Ansari、Martin P. Andersson、Dongari Yadagiri、Faisal Ibrahim、Shengzong Liang、Gerald B. Hammond、Fabrice Gallou、Sachin Handa
DOI:10.1039/c7gc03514d
日期:——
Proline-based designer surfactant FI-750-M has been demonstrated to enable selective nucleophilic aromatic substitution of polyfluoro(hetero)arenes by sulfinate salts in water undermild micellar conditions. Resultant sulfones were obtained from diverse substrates in good yields without side product formation and could usually be purified by simple filtration. The nature of micelles of FI-750-M and
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
Ru/Ni Dual Catalytic Desulfinative Photoredox C<sub>sp<sup>2</sup></sub>–C<sub>sp<sup>3</sup></sub> Cross-Coupling of Alkyl Sulfinate Salts and Aryl Halides
作者:Thomas Knauber、Ramalakshmi Chandrasekaran、Joseph W. Tucker、Jinshan Michael Chen、Matthew Reese、Danica A. Rankic、Neal Sach、Christopher Helal
DOI:10.1021/acs.orglett.7b03280
日期:2017.12.15
reaction of alkyl sulfinate salts with aryl halides has been developed. The optimized catalyst system, consisting of Ru(bpy)3Cl2, Ni(COD)2, and DBU, smoothly mediates the coupling of a diverse set of secondary and primary nonactivated alkyl sulfinate salts with a broad range of electron-deficient aryl bromides, electron-rich aryl iodides, and heteroaryl bromides under irradiation with blue light. The procedure