单原子光催化作为一种重要的有机转化策略已受到越来越多的关注,其性能很大程度上取决于催化剂的设计。该方案最初涉及制造单原子光催化剂Ni / TiO 2,用于可见光诱导的酰胺的位点选择性磺化,以产生酰胺化砜,其中36个实例的收率高达99%。实验结果表明,该单原子光催化剂Ni / TiO 2可以在可见光下实现酰胺的定点磺化,从而构建α-酰胺基砜和β-丙酰胺基砜。重要的是,这种基于单原子光催化的合成系统显示出良好的可回收性,高周转数(最多18 963),对官能团的优异耐受性,并且可以容易地按比例放大并具有良好的效率。
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.
Sulfinic Acids and Related Compounds 23. Preparation of Sulfinic Acids by the Reaction of Sulfonyl Halides with Thiols
作者:Chew Lee、Lamar Field
DOI:10.1055/s-1990-26884
日期:——
The reaction of arene- and alkanesulfonyl halides with p-thiocresol in the presence of triethylamine at - 76°C gives triethylammonium sulfinates, which after acidification afford sulfinic acids of 95-100% purity in yields of 51-92% for 18 typical representatives. The synthesis succeeds in certain instances where conventional reduction with aqueous sodium sulfite fails and in other instances often is superior. The method is rapid, mild, selective, convenient, and general, although a few limitations are reported. Characterizations of the sulfinic acids are effected by titration with aqueous sodium nitrite, by IR and 1H-NMR spectra, by preparation of either a S-benzylthiuronium salt or a p-nitrobenzyl ester, and either by elemental analyses or comparison with reported melting points of the acids and derivatives as appropriate.
The electrochemical in-situ oxidative sulfonylation of phenols with sulfinicacids access to sulfonylated hydroquinones has been developed. A series of sulfonylated hydroquinones were prepared under mild mediator-, catalyst- and exogenous-oxidant-free conditions. Notably, such an electrochemical in-situ-oxidative synthetic strategy presented wide functional group tolerance and amenability to gram-scale
COMPOSITION, SYNTHESIS, AND USE OF NEW ARYLSULFONYL ISONITRILES
申请人:DUQUESNE UNIVERSITY OF THE HOLY GHOST
公开号:US20150239833A1
公开(公告)日:2015-08-27
This invention relates to novel isonitriles, including arylsulfonyl isonitriles, and methods for their synthesis. The isonitriles include a conjugated ring system. The structure is designed with the flexibility to have multiple substitution patterns. The isonitriles may be used in applications including, but not limited to, pharmaceutical compositions.
Synthesis of Multisubstituted Furans via a Catalyst- and Additive-Free Tandem Reaction of Enynones with Sulfinic Acids in Water
作者:Yue Ren、Ling-Guo Meng、Tao Peng、Lei Wang
DOI:10.1021/acs.orglett.8b01714
日期:2018.8.3
A facile and efficient tandemreaction of enynones with arylsulfinic acids was developed. A variety of multisubstituted furans were obtained in satisfactory yields via an O2-oxidative single-electron-transfer process without any catalyst and additive in water.