TOC 句子:提出了一种在长波长下具有明亮发射的基于 2-吡啶酮的荧光团的合理设计策略。基于分子内电荷转移的2-吡啶酮荧光团,具有大摩尔吸收率(ϵ=20,100 M −1 cm −1 )、更长的发射波长(λ em =539 nm)、高发射量子产率(Φ F =74 %),以及该策略产生了大的斯托克斯位移(Δv=5720 cm -1 )。
申请人:Hubei Bio-Pharmaceutical Industrial Technological Institute Inc.
公开号:US20170313683A1
公开(公告)日:2017-11-02
Provided are a series of BTK inhibitors, and specifically disclosed are a compound, pharmaceutically acceptable salt thereof, tautomer thereof or prodrug thereof represented by formula (I), (II), (III) or (IV).
A directing group free Pd(<scp>ii</scp>)-catalysed desulfitative C6-arylation of 2-pyridone using an arylsulfonyl chloride
作者:Ujjwal Karmakar、Rajarshi Samanta
DOI:10.1039/d0ob01716g
日期:——
A Pd(II)-catalysed directdesulfitativearylation was realized at the C6-position of the 2-pyridone scaffold. Aryl sulfonyl chloride was used as an alternative arylating agent. The required site-selectivity occurred without the strategic installation of a heteroatom containing directing group. Preliminary mechanistic studies revealed that radical species were involved during this process.
在 2-吡啶酮支架的 C6 位实现了Pd( II ) 催化的直接脱硫芳基化。芳基磺酰氯用作替代的芳基化剂。在没有战略性地安装含杂原子的导向基团的情况下,就可以实现所需的位点选择性。初步机制研究表明,在此过程中涉及自由基物种。
Ultra‐long Near‐infrared Repeatable Photochemical Afterglow Mediated by Reversible Storage of Singlet Oxygen for Information Encryption
general strategy to realize repeatable photochemical afterglow (RPA) based on the reversible storage of singlet oxygen. Ultra-long near-infrared afterglow was achieved via the singlet oxygen-sensitized fluorescence approach, and its intensity shows no significant reduction over 50 excitation cycles. The RPA system was further applied for attacker-misleading information encryption, presenting a repeatable
申请人:Hubei Bio-Pharmaceutical Industrial Technological Institute Inc.
公开号:US10662174B2
公开(公告)日:2020-05-26
Provided are a series of BTK inhibitors, and specifically disclosed are a compound, pharmaceutically acceptable salt thereof, tautomer thereof or prodrug thereof represented by formula (I), (II), (III) or (IV).
An asymmetric homogeneous hydrogenation of 2(1H)-pyridones has been developed, using a ruthenium complex bearing two chiral N-heterocyclic carbene (NHC) ligands. To the best of our knowledge, the presented reaction is the first example of a homogeneous asymmetric conversion of 2-pyridones into the corresponding enantioenriched 2-piperidones.