Continuous Heterogeneous Photocatalysis in Serial Micro-Batch Reactors
作者:Bartholomäus Pieber、Menny Shalom、Markus Antonietti、Peter H. Seeberger、Kerry Gilmore
DOI:10.1002/anie.201712568
日期:2018.7.26
leaching catalysts, and heterogeneous photocatalysts are commonly employed in batch processes but are ill‐suited for continuous‐flow chemistry. Heterogeneous catalysts for thermal reactions are typically used in packed‐bed reactors, which cannot be penetrated by light and thus are not suitable for photocatalytic reactions involving solids. We demonstrate that serial micro‐batch reactors (SMBRs) allow
ALPHA-(N-SULFONAMIDO)ACETAMIDE DERIVATIVES AS BETA-AMYLOID INHIBITORS
申请人:Parker F. Michael
公开号:US20080085894A1
公开(公告)日:2008-04-10
There is provided a series of novel α-(N-sulfonamido)acetamide compounds of the Formula (I)
wherein R, R
1
, R
2
and R
3
are defined herein, which are inhibitors of β-amyloid peptide (β-AP) production and are useful in the treatment of Alzheimer's Disease and other conditions affected by anti-amyloid activity.
Benzylic Fluorination Induced by a Charge-Transfer Complex with a Solvent-Dependent Selectivity Switch
作者:Amiera Madani、Lucia Anghileri、Matthias Heydenreich、Heiko M. Möller、Bartholomäus Pieber
DOI:10.1021/acs.orglett.2c02050
日期:2022.7.29
We present a divergent strategy for the fluorination of phenylacetic acid derivatives that is induced by a charge-transfer complex between Selectfluor and 4-(dimethylamino)pyridine. A comprehensive investigation of the conditions revealed a critical role of the solvent on the reaction outcome. In the presence of water, decarboxylative fluorination through a single-electron oxidation is dominant. Non-aqueous
Targeted, metal-catalyzed fluorination of complex compounds with fluoride ion via decarboxylation
申请人:The Trustees of Princeton University
公开号:US10543481B2
公开(公告)日:2020-01-28
Methods of preparing fluorinated compounds by carboxylative fluorination using fluoride are contained herein. Fluorinated compounds are provided. Methods of using fluorinated compounds are contained herein.
Photoredox Nucleophilic (Radio)fluorination of Alkoxyamines
作者:Sebastiano Ortalli、Joseph Ford、Andrés A. Trabanco、Matthew Tredwell、Véronique Gouverneur
DOI:10.1021/jacs.4c02474
日期:2024.5.1
TEMPO-derived alkoxyamines, a class of substrates accessible in a single step from a diversity of readily available carboxylic acids, halides, alkenes, alcohols, aldehydes, boron reagents, and C–H bonds. This mild and versatile one-electron pathway affords radiolabeled aliphatic fluorides that are typically inaccessible applying conventional nucleophilic substitution technologies due to insufficient reactivity
在此,我们报道了使用 TEMPO 衍生的烷氧基胺进行光氧化还原亲核(放射性)氟化,这是一类底物,可通过多种容易获得的羧酸、卤化物、烯烃、醇、醛、硼试剂和 C-H 一步获得债券。这种温和且通用的单电子途径提供了放射性标记的脂肪族氟化物,由于反应性不足和竞争性消除,应用传统的亲核取代技术通常无法获得这些氟化物。该光氧化还原过程的自动化还通过用户友好且市售的光氧化还原流反应器和放射合成平台进行了演示,因此加快了获得高摩尔活性 ( A m ) 的标记脂肪族氟化物的速度,以进行临床(前)评估。