Metal-Free Synthesis of Diaryl Sulfones from Arylsulfinic Acid Salts and Diaryliodonium Salts
作者:Natalie Umierski、Georg Manolikakes
DOI:10.1021/ol303248h
日期:2013.1.4
An efficient, high-yielding, and transition-metal-free synthesis of diaryl sulfones from arylsulfinic acid salts and diaryliodonium salts has been developed. The mild reaction conditions tolerate a range of functional groups, and unsymmetrical diaryliodonium salts show high chemoselectivity.
Chemical transformations based on cascade reactions have the potential to simplify the preparation of diverse and architecturally complex molecules dramatically. Herein, we disclose an unprecedented and efficient method for the cross-coupling of radical precursors, dienes, and electrophilic coupling partners via a photoredox- and nickel-enabled cascade cross-coupling process. The cascade reaction furnishes
基于级联反应的化学转化有可能显着简化多样化且结构复杂的分子的制备。在此,我们公开了一种前所未有的有效方法,用于通过光氧化还原和镍启用的级联交叉偶联过程来交叉偶联自由基前体、二烯和亲电偶联配偶体。级联反应提供了多种饱和碳环和杂环支架,从而提供了快速获得 CC 键饱和度的途径。
EPIMINOCYCLOALKYL[b] INDOLE DERIVATIVES AS SEROTONIN SUB-TYPE 6 (5-HT6) MODULATORS AND USES THEREOF
申请人:GUZZO Peter R.
公开号:US20110112122A1
公开(公告)日:2011-05-12
The present invention relates to epiminocycloalkyl[b]indole derivatives as serotonin sub-type 6 (5-HT
6
) modulators, pharmaceutical compositions including these compounds, and methods of preparation and use thereof. These compounds are useful in the treatment of central nervous system disorders including obesity, metabolic syndrome, cognition, and schizophrenia. The subject compounds have the structure of formula (I)
with the substituents being described herein.
Epiminocycloalkyl[b] indole derivatives as serotonin sub-type 6 (5-HT6) modulators and uses thereof
申请人:Guzzo Peter R.
公开号:US08575186B2
公开(公告)日:2013-11-05
The present invention relates to epiminocycloalkyl[b]indole derivatives as serotonin sub-type 6 (5-HT6) modulators, pharmaceutical compositions including these compounds, and methods of preparation and use thereof. These compounds are useful in the treatment of central nervous system disorders including obesity, metabolic syndrome, cognition, and schizophrenia. The subject compounds have the structure of formula (I)
with the substituents being described herein.
Visible-light-mediated synthesis of β-keto sulfones using g-C<sub>3</sub>N<sub>4</sub> as a recyclable photocatalyst under sustainable conditions
作者:Binoyargha Dam、Ashish Kumar Sahoo、Bhisma K. Patel
DOI:10.1039/d2gc02254k
日期:——
photocatalyst. The mechanistic investigation revealed that the formation of β-keto sulfones from phenylacetylenes proceeds via a β-iodo sulfone intermediate. While for ketones, it proceeds via a radical C–I cleavage of the in situ generated α-iodo ketone intermediate, followed by the attack of the sulfonyl radical. Potent biologically active compounds like anti-analgesic agents and CES1 inhibitors were synthesized