Reversal of the enantioselectivity in aldol addition over immobilized di- and tripeptides: studies under continuous flow conditions

RSC Advances ◽  
2014 ◽  
Vol 4 (106) ◽  
pp. 61611-61618 ◽  
Author(s):  
András Gurka ◽  
Imre Bucsi ◽  
Lenke Kovács ◽  
György Szőllősi ◽  
Mihály Bartók
Keyword(s):  
Continuous Flow ◽  
Flow System ◽  
Aldol Reactions ◽  
Flow Conditions ◽  
Continuous Flow System ◽  
System P ◽  
Aldol Addition

The reversal of the enantioselectivity in the heterogeneous asymmetric direct aldol reactions obtained over resin supported di- versus tripeptides was studied in a continuous-flow system.

Response of sulfate-reducing bacteria and supporting microbial community to persulfate exposure in a continuous flow system

2019 ◽  
Vol 21 (7) ◽  
pp. 1193-1203 ◽  
Author(s):  
Christopher K. Bartlett ◽  
Robin M. Slawson ◽  
Neil R. Thomson
Keyword(s):  
Microbial Community ◽  
Continuous Flow ◽  
Flow System ◽  
Sulfate Reducing Bacteria ◽  
Continuous Flow System ◽  
Sulfate Reducing ◽  
System P ◽  
P Recovery ◽  
Community Profile ◽  
Reducing Bacteria

Recovery of BTEX biodegradation, sulfate-reducing bacteria and associated community profile following exposure to persulfate in a continuous flow system.

scholarly journals Gel permeation chromatography as a multifunctional processor for nanocrystal purification and on-column ligand exchange chemistry

2016 ◽  
Vol 7 (9) ◽  
pp. 5671-5679 ◽  
Author(s):  
Yi Shen ◽  
Adam Roberge ◽  
Rui Tan ◽  
Megan Y. Gee ◽  
Dylan C. Gary ◽  
...  
Keyword(s):  
Ligand Exchange ◽  
Continuous Flow ◽  
Flow System ◽  
Gel Permeation Chromatography ◽  
Continuous Flow System ◽  
System P ◽  
Gel Permeation

GPC provides a general approach to purification of a variety of nanocrystal types, and additionally achieves ligand exchange in a continuous flow system.

scholarly journals p-Xylene from 2,5-dimethylfuran and acrylic acid using zeolite in a continuous flow system

2020 ◽  
Vol 22 (21) ◽  
pp. 7398-7405 ◽  
Author(s):  
Jose Alirio Mendoza Mesa ◽  
Francesco Brandi ◽  
Irina Shekova ◽  
Markus Antonietti ◽  
Majd Al-Naji
Keyword(s):  
Acrylic Acid ◽  
Lignocellulosic Biomass ◽  
Continuous Flow ◽  
Flow System ◽  
Diels Alder ◽  
Flow Synthesis ◽  
Continuous Flow System ◽  
System P ◽  
Different Types

The continuous flow synthesis of p-xylene (pXL) via Diels–Alder cycloaddition of lignocellulosic biomass-derivable 2,5-dimethylfuran (DMF) and acrylic acid (AA) was performed over different types of zeolites.

Glycopolymer monoliths for affinity bioseparation of proteins in a continuous-flow system: glycomonoliths

2017 ◽  
Vol 5 (6) ◽  
pp. 1148-1154 ◽  
Author(s):  
Hirokazu Seto ◽  
Makoto Shibuya ◽  
Hikaru Matsumoto ◽  
Yu Hoshino ◽  
Yoshiko Miura
Keyword(s):  
Continuous Flow ◽  
Flow System ◽  
Continuous Flow System ◽  
System P ◽  
Macroporous Materials

Macroporous materials, called glycomonoliths, were prepared from saccharide-containing monomers, and applied for affinity bioseparation of proteins in a continuous-flow system.

Highly Enantioselective Immobilized Prolinamide-Catalyzed Aldol Reactions in Continuous-Flow Systems: Effect of Water on Catalyst Lifetime and Application to the Synthesis of a Chiral Fenpentadiol Analogue

2021 ◽  
Author(s):  
Caizhen Yue ◽  
Yasuhiro Yamashita ◽  
Shu Kobayashi
Keyword(s):  
Continuous Flow ◽  
Flow System ◽  
Aldol Reactions ◽  
Flow Conditions ◽  
Effect Of Water ◽  
Flow Systems ◽  
First Time ◽  
Catalyst Lifetime

Catalytic enantioselective aldol reactions of trifluoroacetophenones with ketones under continuous-flow conditions have been developed for the first time by using polystyrene-supported prolinamides. The robustness of the flow system was demonstrated...

scholarly journals Cultivation of a cellulolytic microbial community under continuous flow conditions

2021 ◽  
Author(s):  
David Jenkins
Keyword(s):  
Flow Rate ◽  
Continuous Flow ◽  
Microbial Consortium ◽  
Flow System ◽  
Cellulose Degradation ◽  
Cellulose Hydrolysis ◽  
Flow Conditions ◽  
Continuous Flow System ◽  
Enrichment Process ◽  
High Ethanol

A stable microbial consortium capable of cellulose hydrolysis under initial aerobic conditions has been enriched in a continuous flow system. Anaerobic conditions were created and maintained within the flow system using only microbial metabolism. A DGGE community profile of samples taken throughout the enrichment process indicates that the community stabilized upon entry into the continuous flow system, and maintained function and members throughout. The effect of flow rate on cellulose degradation and end product production was assessed. The cellulose degradation rate was found to be notably faster at a flow rate of 0.1 ml/min (D 0.75/hr) than a flow rate of 0.2 ml/min (D1.50/hr). Furthermore, an ethanol to acetate ratio nearly 8 times higher than previously reported values in the literature was also observed at 0.1 ml/min (D0.75/hr). With reduced flow rate and high ethanol to acetate ratios, the enriched community may be well suited for consolidate bioprocessing.

scholarly journals A fixed-bed photoreactor using conjugated nanoporous polymer-coated glass fibers for visible light-promoted continuous photoredox reactions

2017 ◽  
Vol 5 (8) ◽  
pp. 3792-3797 ◽  
Author(s):  
Wei Huang ◽  
Beatriz Chiyin Ma ◽  
Di Wang ◽  
Zi Jun Wang ◽  
Run Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Continuous Flow ◽  
Flow System ◽  
Glass Fibers ◽  
Fixed Bed ◽  
Coated Glass ◽  
Continuous Flow System ◽  
System P

Here, we report on a fixed-bed photoreactor containing conjugated nanoporous polymer-coated glass fibers for visible light-promoted, heterogeneous photoredox reactions in a continuous flow system.

scholarly journals Cultivation of a cellulolytic microbial community under continuous flow conditions

2021 ◽  
Author(s):  
David Jenkins
Keyword(s):  
Flow Rate ◽  
Continuous Flow ◽  
Microbial Consortium ◽  
Flow System ◽  
Cellulose Degradation ◽  
Cellulose Hydrolysis ◽  
Flow Conditions ◽  
Continuous Flow System ◽  
Enrichment Process ◽  
High Ethanol

A stable microbial consortium capable of cellulose hydrolysis under initial aerobic conditions has been enriched in a continuous flow system. Anaerobic conditions were created and maintained within the flow system using only microbial metabolism. A DGGE community profile of samples taken throughout the enrichment process indicates that the community stabilized upon entry into the continuous flow system, and maintained function and members throughout. The effect of flow rate on cellulose degradation and end product production was assessed. The cellulose degradation rate was found to be notably faster at a flow rate of 0.1 ml/min (D 0.75/hr) than a flow rate of 0.2 ml/min (D1.50/hr). Furthermore, an ethanol to acetate ratio nearly 8 times higher than previously reported values in the literature was also observed at 0.1 ml/min (D0.75/hr). With reduced flow rate and high ethanol to acetate ratios, the enriched community may be well suited for consolidate bioprocessing.

3D-printed PEEK reactors and development of a complete continuous flow system for chemical synthesis

2020 ◽  
Vol 5 (7) ◽  
pp. 1300-1310 ◽  
Author(s):  
Florian Menzel ◽  
Thomas Klein ◽  
Thomas Ziegler ◽  
Jochen M. Neumaier
Keyword(s):  
Chemical Synthesis ◽  
Continuous Flow ◽  
Flow System ◽  
Continuous Flow System ◽  
Polyether Ether Ketone ◽  
System P ◽  
3D Printed ◽  
Ether Ketone ◽  
Microfluidic Reactors

This paper presents the development of milli- and microfluidic reactors made of polyether ether ketone (PEEK) and 3D-printed equipment for a complete continuous flow system.

Synthesis and scale-up of water-soluble quaternary cationic monomers in a continuous flow system

2019 ◽  
Vol 4 (5) ◽  
pp. 919-926
Author(s):  
Zheng Fang ◽  
Yuhang Yang ◽  
Jiajia Gu ◽  
Zhao Yang ◽  
Feiyang Dai ◽  
...  
Keyword(s):  
Continuous Flow ◽  
Flow System ◽  
Scale Up ◽  
Power Saving ◽  
Water Soluble ◽  
Continuous Flow System ◽  
Simple Power ◽  
System P

A novel, simple, power-saving and effective method for the synthesis and scale-up of cationic water-soluble polyelectrolytes represented by dimethyldiallylammonium chloride (DMDAAC) with commercially available reagents in a two-step continuous flow system has been developed.

Sign in / Sign up

Export Citation Format

Share Document