Ir-Catalyzed Preparation of SF5-Substituted Potassium Aryl Trifluoroborates via C–H Borylation and Their Application in the Suzuki–Miyaura Reaction
摘要:
The preparation of new pentafluorosulfanyl-substituted potassium aryltrifluoroborates via Ir-catalyzed C-H borylation is reported. The utility of these novel building blocks was demonstrated in the Suzuki-Miyaura cross-coupling reaction, giving access to 3,5-disubstituted pentafluorosulfanylbenzenes.
Ir-Catalyzed Preparation of SF5-Substituted Potassium Aryl Trifluoroborates via C–H Borylation and Their Application in the Suzuki–Miyaura Reaction
摘要:
The preparation of new pentafluorosulfanyl-substituted potassium aryltrifluoroborates via Ir-catalyzed C-H borylation is reported. The utility of these novel building blocks was demonstrated in the Suzuki-Miyaura cross-coupling reaction, giving access to 3,5-disubstituted pentafluorosulfanylbenzenes.
Histonedeacetylase 6 (HDAC6) is a peculiar HDAC isoform whose expression and functional alterations have been correlated with a variety of pathologies such as autoimmune disorders, neurodegenerative diseases, and cancer. It is primarily a cytoplasmic protein, and its deacetylase activity is focused mainly on nonhistone substrates such as tubulin, heat shock protein (HSP)90, Foxp3, and cortactin, to
<i>In situ ortho</i>-lithiation/functionalization of pentafluorosulfanyl arenes
作者:Thanh V. Le、Olafs Daugulis
DOI:10.1039/d1cc06140b
日期:——
ortho-functionalization of pentafluorosulfanyl arenes has been developed. ortho-Lithiation with lithium tetramethylpiperidide at −60 °C in the presence of silicon, germanium, and tin electrophiles affords trapped products in moderate to highyields. Precise temperature regimes and the presence of electrophiles during lithiation are important for successful reactions, since the pentafluorosulfanyl group
已经开发了一种用于五氟硫烷基芳烃的邻位官能化的通用方法。邻-在硅、锗和锡亲电子试剂存在下,在 -60 °C 下用四甲基哌啶锂进行锂化,以中等至高产率提供捕获的产物。锂化过程中精确的温度范围和亲电试剂的存在对于成功的反应很重要,因为五氟硫烷基在高于 -40 °C 的温度下充当有能力的离去基团。氟、溴、碘、可烯醇化的酮、氰基、酯、酰胺和未取代的氨基官能团与反应条件相容。还证明了 2-二甲基甲硅烷基五氟硫烷基苯转化为 2-卤代衍生物,可用作交叉偶联化学中的起始材料。
[EN] PHENYL- SULFONYL DERIVATIVES AS MEDIATORS OF TRPA1 RECEPTOR ACTIVITY FOR THE TREATMENT OF PAIN<br/>[FR] DÉRIVÉS DE PHÉNYLSULFONYLE EN TANT QUE MÉDIATEURS DE L'ACTIVITÉ DE RÉCEPTEUR TRPA1 POUR LE TRAITEMENT DE LA DOULEUR
申请人:ORION CORP
公开号:WO2012152983A1
公开(公告)日:2012-11-15
Compounds of formula I, wherein A and R1-R7, are as defined in the claims, exhibit TRPA1 activity and useful as TRPA1 modulators.
using elemental fluorine afforded substituted (pentafluorosulfanyl)benzenes. This work thus represents the first study of the scope and limitation of direct fluorination for the synthesis of newSF5-containing building blocks. Fluorinations in batch and flow modes were compared. A comprehensive computational study was carried out employing density functional and wave function methods to elucidate the