scholarly journals In Situ Fluorescence Microscope Measurements of the Phase Transfer Dynamics of Single DNA Molecular Ions with Dimethyldioctadecylammonium Chloride into Isooctane–1-Octanol Mixture

2021 ◽  
Vol 28 (1) ◽  
pp. 1-10
Author(s):  
Satoshi TSUKAHARA ◽  
Shohei INOSHITA ◽  
Terufumi FUJIWARA
Keyword(s):  
Phase Transfer ◽  
Molecular Ions ◽  
Fluorescence Microscope

Microwave Energy Pretreated In Situ Transesterification of Jatropha Curcas L in the Presence of Phase Transfer Catalyst

2014 ◽  
Vol 625 ◽  
pp. 267-270 ◽  
Author(s):  
Sintayehu Mekuria Hailegiorgis ◽  
Mahadzir Shuhaimi ◽  
Duvvuri Subbarao
Keyword(s):  
Statistical Model ◽  
Jatropha Curcas ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
In Situ Transesterification ◽  
Heat Pretreatment ◽  
Seed Particles ◽  
Optimum Reaction ◽  
Microwave Heat

In the present work, microwave heat pretreatment of jatropha curcas seed particles and use of phase transfer catalyst (PTC) to enhance in-situ transesterification were utilized together. It was observed that use of alkaline BTMAOH as a PTC and microwave heat pretreatment of jatropha curcas seed particles had substantially increased the reaction rate of in-situ transesterification as compared to the reaction conducted with microwave untreated seeds in the absence of BTMAOH as a PTC. Statistical model equation was developed to investigate the interaction effect of reaction variables and establish optimum reaction condition. At optimum condition, experimentally obtained FAME yield (93.7±1.53% w/w) was in close agreement with statistical model predicted FAME yield (96.75%) at 38°C and 37 minutes of reaction time.

An Efficient Electrophilic N-Amination Utilizing in situ Generated Chloramine under Phase Transfer Conditions.

ChemInform ◽  
2006 ◽  
Vol 37 (45) ◽  
Author(s):  
Apurba Bhattacharya ◽  
Nitin C. Patel ◽  
Robert Erik Plata ◽  
Michael Peddicord ◽  
Qingmei Ye ◽  
...  
Keyword(s):  
Phase Transfer

Development of a light-field fluorescence microscope for in situ life searches in the solar system

2019 ◽  
Author(s):  
Gene Serabyn ◽  
Kurt Liewer ◽  
Chris Lindensmith ◽  
Kent Wallace ◽  
Jay Nadeau
Keyword(s):  
Solar System ◽  
Light Field ◽  
Fluorescence Microscope

Phase-Transfer-Catalyzed Asymmetric Aza-Henry Reaction UsingN-Carbamoyl Imines Generated In Situ from α-Amido Sulfones

2005 ◽  
Vol 44 (48) ◽  
pp. 7975-7978 ◽  
Author(s):  
Francesco Fini ◽  
Valentina Sgarzani ◽  
Daniel Pettersen ◽  
Raquel P. Herrera ◽  
Luca Bernardi ◽  
...  
Keyword(s):  
Phase Transfer ◽  
Henry Reaction

Improvement of biomolecular analysis in thin films using in-situ matrix enhanced Secondary Ion Mass Spectrometry

The Analyst ◽  
2021 ◽  
Author(s):  
Konstantin Moshkunov ◽  
Benjamin Tomasetti ◽  
Thomas Daphnis ◽  
Vincent Delmez ◽  
Kevin Vanvarenberg ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Secondary Ion Mass Spectrometry ◽  
Imaging Mass Spectrometry ◽  
Molecular Ions ◽  
Limiting Factor ◽  
Ion Mass Spectrometry ◽  
Resolution Imaging ◽  
Biomolecular Analysis ◽  
Secondary Ion

Sensitivity to molecular ions remains a limiting factor for high resolution imaging mass spectrometry of organic and biological materials. Here, we investigate a variant of matrix-enhanced secondary ion mass spectrometry...

scholarly journals In Situ Electrophilic Activation of Hydrogen Peroxide for Catalytic Asymmetric α-Hydroxylation of 3-Substituted Oxindoles

Synlett ◽  
2017 ◽  
Vol 28 (11) ◽  
pp. 1291-1294 ◽  
Author(s):  
Takashi Ooi ◽  
Kohsuke Ohmatsu ◽  
Yuichiro Ando
Keyword(s):  
Hydrogen Peroxide ◽  
Phase Transfer ◽  
Practical Method ◽  
Optically Active ◽  
Aqueous Hydrogen Peroxide ◽  
Bond Forming ◽  
Electrophilic Activation ◽  
Oxygen Bond ◽  
Activation Of Hydrogen Peroxide

Peroxy trichloroacetimidic acid, in situ generated from aqueous hydrogen peroxide and trichloroacetonitrile, was found to act as a competent electrophilic oxygenating agent for the direct α-hydroxylation of oxindoles. The use of chiral 1,2,3-triazolium salt as a phase-transfer catalyst enabled rigorous absolute stereocontrol in the carbon–oxygen bond-forming reaction. The present study provides a new, yet practical method for straightforward access to optically active α-hydroxycarbonyl compounds.

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