Metal Free Benzylation and Alkylation of Quinoxalin‐2(1
<i>H</i>
)‐ones with Alkenes Triggered by Sulfonyl Radical Generated from Sulfinic Acids
作者:Himangsu Sekhar Dutta、Ashfaq Ahmad、Afsar Ali Khan、Mohit Kumar、Raziullah、Dipankar Koley
DOI:10.1002/adsc.201901212
日期:2019.12.17
A metal‐free domino multicomponent reaction for the direct C−H benzylation and alkylation of quinoxalin‐2(1H)‐ones using alkenes is described. Triggered by the sulfonyl radical generated from sulfinic acid, the alkenes are transformed to alkyl radicals that react exclusively at the C‐3 position of quinoxalin‐2(1H)‐ones. Importantly, the method not only functionalizes medicinally important quinoxalin‐2(1H)‐one
BENZOFURO[3,2-c] PYRIDINES AND RELATED ANALOGS AS SEROTONIN SUB-TYPE 6 (5-HT6) MODULATORS FOR THE TREATMENT OF OBESITY, METABOLIC SYNDROME, COGNITION AND SCHIZOPHRENIA
申请人:GUZZO Peter R.
公开号:US20120184531A1
公开(公告)日:2012-07-19
The present invention relates to benzofuro[3,2-c]pyridine and azepine analogs as serotonin sub-type 6 (5-HT
6
) modulators, pharmaceutical compositions including these compounds, methods of preparation, and use thereof. These compounds are useful in the treatment of central nervous system disorders including obesity, metabolic syndrome, cognition, schizophrenia, attention deficit hyperactivity disorder, bipolar disorder, rare and orphan diseases, and sleep disorders. The subject compounds have the structure of formula (I)
with the substituents being described herein.
[EN] PHOTOINITIATORS HAVING TRIARYLSULFONIUM AND ARYLSULFINATE IONS<br/>[FR] PHOTO-INITIATEUR POSSEDANT DES IONS TRIARYLSULFONIUM ET ARYLSULFINATE
申请人:3M INNOVATIVE PROPERTIES CO
公开号:WO2005034885A1
公开(公告)日:2005-04-21
Compositions are provided that include a photoinitiator system for free radical polymerization reactions. More specifically, the photoinitiator includes an arylsulfinate ion and a triarylsulfonium ion. Polymerization methods are also provided those include the photoinitiator in a photopolymerizable composition. Additionally, triarylsulfonium arylsulfinate salts are disclosed.
Selective Synthesis of Diaryl Sulfoxides and <i>m</i>-Arylthio Sulfones from Arylsulfinic Acids and Arenes via BF<sub>3</sub>-Promoted C–S Bond Formation
作者:Wei Shi、Tao Miao、Yang Li、Pinhua Li、Lei Wang
DOI:10.1021/acs.orglett.8b01681
日期:2018.8.3
A novel and efficient method for selective synthesis of diaryl sulfoxides and m-arylthio sulfones has been achieved from readily available arylsulfinic acids and arenes via an unusual sulfinyl cation, providing a range of structurally diverse products in good to excellent yields under mild conditions. Notably, mechanistic investigations suggested m-arylthio sulfones were generated from diaryl sulfoxides
Copper-Catalyzed Decarboxylative Disulfonylation of Alkynyl Carboxylic Acids with Sulfinic Acids
作者:Hong Fu、Jia-Qi Shang、Tao Yang、Yuehai Shen、Chuan-Zhu Gao、Ya-Min Li
DOI:10.1021/acs.orglett.7b03922
日期:2018.1.19
A copper-catalyzed decarboxylative disulfonylation of alkynyl carboxylic acids with sulfinicacids in aqueous solution has been developed. The reaction provides a straightforward and practical access to (E)-1,2-disulfonylethenes, which are important building blocks in synthetic organic chemistry, and exhibits a good functional group tolerance and excellent stereoselectivity. A possible mechanism for