亚磺酸的不同加成模式被开发用于烯酮的化学发散磺酰化,其中烯酮的炔部分的离子磺酰化是通过盐控制的顺式加成途径实现的。烯烃部分的自由基磺酰化也提供了立体定义的磺酰化烯烃。还探索了Ti(O i -Pr) 4催化的 ( E )-β-氯乙烯基酮的 α-乙烯基醛醇缩合,然后进行化学发散磺酰化的一锅串联序列,从而可以轻松获得高度取代的二烯和埃尼斯。
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.
Water‐Promoted Dehydrative Tsuji–Trost Reaction of Non‐Derivatized Allylic Alcohols with Sulfinic Acids
作者:Jing Yu、Xueping Chang、Ruitian Ma、Qiuju Zhou、Mengmeng Wei、Xinhua Cao、Xiantao Ma
DOI:10.1002/ejoc.202001306
日期:2020.12.13
A promoting effect of water was observed, leading to the dehydrative synthesis of allylic sulfones byTsuji–Trost reaction of non‐derivatized allylic alcohols with sulfinicacids. Mechanism studies suggested the formation of the eight‐membered ring complex from allylic alcohols, sulfinicacids, and water through hydrogen bonding may be crucial to the efficient activation of allylic alcohols.
Photo-Driven Synthesis of C6-Polyfunctionalized Phenanthridines from Three-Component Reactions of Isocyanides, Alkynes, and Sulfinic Acids by Electron Donor–Acceptor Complex
作者:Yang Li、Tao Miao、Pinhua Li、Lei Wang
DOI:10.1021/acs.orglett.8b00171
日期:2018.4.6
A novel and efficient photoinduced synthesis of C6-polyfunctionalized phenanthridines from three-component reactions of isocyanides, alkynes and sulfinicacids was developed. The reactions generated the corresponding products with high selectivity through the photochemical activity of the formed electron donor–acceptor (EDA) complex during the reaction via a radical tandem process under mild conditions
NMR of terminal oxygen. 6—17O NMR of the SO ‘double bond’: Derivatives of arylsulphinic and arylsulphonic acids
作者:Hans Dahn、Vien Van Toan、My-Ngoc Ung-Truong
DOI:10.1002/mrc.1260290907
日期:1991.9
oxygen atoms in esters, anions and amides of substituted arenesulphinic acids and in esters and amides of substituted arenesulphonic acids were measured. The signals of the terminal O appear close to those of the bridge O. Compared with carbonyl O, terminal SO shows (a) a lower sensitivity to the electronic influences of geminal groups, (b) only a low sensitivity to arene ring substituents and (c) small
测量了取代芳烃磺酸的酯、阴离子和酰胺以及取代芳烃磺酸的酯和酰胺中末端氧原子的 17O NMR 谱。末端 O 的信号看起来接近桥 O 的信号。 与羰基 O 相比,末端 SO 显示 (a) 对孪晶基团的电子影响的敏感性较低,(b) 对芳烃环取代基的敏感性较低(c) 小的溶剂效应。根据 π 键特性讨论 C 键和 S 键 O 之间的差异。Dy3+ 与甲基芳烃亚磺酸盐中的 O 端发生络合。
Hydrogen and Sulfonyl Radical Generation for the Hydrogenation and Arylsulfonylation of Alkenes Driven by Photochemical Activity of Hydrogen Bond Donor‐Acceptor Complexes
作者:Yang Li、Fang Ma、Pinhua Li、Tao Miao、Lei Wang
DOI:10.1002/adsc.201801521
日期:2019.4
developed. The reaction afforded a range of hydrogenated products and sulfonated oxindoles in high yields under external photocatalyst‐free, oxidant‐ and reductant‐free conditions. Mechanistic investigations suggested this transformation is driven by the photochemical activity of hydrogen bond donor‐acceptor complex, generated from the substrates of arylsulfinic acids and C6‐(vinyl sulfone)phenanthridines