One-pot synthesis of hydrophilic CuInS2 and CuInS2–ZnS colloidal quantum dots

2014 ◽  
Vol 2 (24) ◽  
pp. 4812-4817 ◽  
Author(s):  
Jianbing Zhang ◽  
Weipeng Sun ◽  
Liping Yin ◽  
Xiangshui Miao ◽  
Daoli Zhang
Keyword(s):  
Quantum Dots ◽  
Colloidal Quantum Dots ◽  
Short Chain ◽  
One Pot ◽  
Sulphur Source ◽  
One Pot Synthesis ◽  
Capping Ligands

Hydrophilic CuInS2 and CuInS2–ZnS colloidal quantum dots were directly synthesized using in situ generated H2S as the sulphur source and DMF as the solvent. Short chain thiols were applied as capping ligands, reactivity controlling agents and sulphur sources for the growth of the ZnS shell.

Indium Bromide-catalyzed Unprecedented Hydrogenolysis: A Novel One-Pot Synthesis of Per-O-Acetylated β-carboxymethyl O and S-glycosides

2020 ◽  
Vol 24 (8) ◽  
pp. 900-908
Author(s):  
Ram Naresh Yadav ◽  
Amrendra K Singh ◽  
Bimal Banik
Keyword(s):  
Asymmetric Synthesis ◽  
Chiral Auxiliary ◽  
Bioactive Molecules ◽  
One Pot ◽  
Enantiomerically Pure ◽  
Stereoselective Glycosylation ◽  
One Pot Synthesis ◽  
Wide Range

Numerous O (oxa)- and S (thia)-glycosyl esters and their analogous glycosyl acids have been accomplished through stereoselective glycosylation of various peracetylated bromo sugar with benzyl glycolate using InBr3 as a glycosyl promotor followed by in situ hydrogenolysis of resulting glycosyl ester. A tandem glycosylating and hydrogenolytic activity of InBr3 has been successfully investigated in a one-pot procedure. The resulting synthetically valuable and virtually unexplored class of β-CMGL (glycosyl acids) could serve as an excellent potential chiral auxiliary in the asymmetric synthesis of a wide range of enantiomerically pure medicinally prevalent β-lactams and other bioactive molecules of diverse medicinal interest.

scholarly journals One pot synthesis of bi-linker stabilised CdSe quantum dots

2010 ◽  
Vol 245 ◽  
pp. 012067 ◽  
Author(s):  
I Concina ◽  
M M Natile ◽  
A Braga ◽  
A Vomiero ◽  
V Morandi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Cdse Quantum Dots ◽  
One Pot ◽  
One Pot Synthesis

Hypervalent-Iodine Mediated One-Pot Synthesis of Isoxazolines and Isoxazoles bearing Difluoromethyl Phosphonate Moiety

2021 ◽  
Author(s):  
Romana Pajkert ◽  
Henryk Koroniak ◽  
Pawel Kafarski ◽  
Gerd Volker Roeschenthaler
Keyword(s):  
Nitrile Oxide ◽  
Dipolar Cycloaddition ◽  
Hypervalent Iodine ◽  
One Pot ◽  
One Pot Synthesis

A one-pot, regioselective 1,3-dipolar cycloaddition of in situ generated (diethoxyphosphoryl)difluoromethyl nitrile oxide toward selected alkenes and alkynes is reported. This protocol enables facile access to 3,5-disubstituted isoxazolines and isoxazoles bearing...

scholarly journals One-Pot Synthesis of Novel Multisubstituted 1-Alkoxyindoles

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1466
Author(s):  
Ye Eun Kim ◽  
Hyunsung Cho ◽  
Yoo Jin Lim ◽  
Chorong Kim ◽  
Sang Hyup Lee
Keyword(s):  
Alkyl Halide ◽  
The Novel ◽  
Reaction Conditions ◽  
One Pot ◽  
One Pot Synthesis ◽  
Consecutive Reactions ◽  
Intramolecular Condensation ◽  
Synthetic Sequence ◽  
Novel Target

Studies on a one-pot synthesis of novel multisubstituted 1-alkoxyindoles 1 and their mechanistic investigations are presented. The synthesis of 1 was successfully achieved through consecutive four step reactions from substrates 2. The substrates 2, prepared through a two-step synthetic sequence, underwent three consecutive reactions of nitro reduction, intramolecular condensation, and nucleophilic 1,5-addition to provide the intermediates, 1-hydroxyindoles 8, which then were alkylated in situ with alkyl halide to afford the novel target products 1. We optimized the reaction conditions for 1 focusing on the alkylation step, along with the consideration of formation of intermediates 8. The optimized condition was SnCl2·2H2O (3.3 eq) and alcohols (R1OH, 2.0 eq) for 1–2 h at 40 °C and then, base (10 eq) and alkyl halides (R2Y, 2.0 eq) for 1–4 h at 25–50 °C. Notably, all four step reactions were performed in one-pot to give 1 in good to modest yields. Furthermore, the mechanistic aspects were also discussed regarding the reaction pathways and the formation of side products. The significance lies in development of efficient one-pot reactions and in generation of new 1-alkoxyindoles.

One-Pot Synthesis of ABC Type Triblock Copolymers via in situ Click [3 + 2] and Diels−Alder [4 + 2] Reactions

2007 ◽  
Vol 40 (2) ◽  
pp. 191-198 ◽  
Author(s):  
Hakan Durmaz ◽  
Aydan Dag ◽  
Ozcan Altintas ◽  
Tuba Erdogan ◽  
Gurkan Hizal ◽  
...  
Keyword(s):  
Triblock Copolymers ◽  
Diels Alder ◽  
One Pot ◽  
One Pot Synthesis

One-pot synthesis and application of novel amino-functionalized silica nanoparticles using guanidine as amino group

2016 ◽  
Vol 40 (10) ◽  
pp. 8444-8450 ◽  
Author(s):  
Feng Guodong ◽  
Guan Mingming ◽  
Lai Qi ◽  
Mi Hongyu ◽  
Li Guanghua ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Silica Nanoparticles ◽  
Amino Group ◽  
Functionalized Silica ◽  
Henry Reaction ◽  
Modified Silica ◽  
One Pot ◽  
One Pot Synthesis ◽  
Modified Silica Nanoparticles ◽  
Functionalized Silica Nanoparticles

The preparation of modified silica nanoparticles with guanidine was developed and used to catalyze the Henry reaction and fix quantum dots.

scholarly journals ZnSe Quantum Dots through a Facile one Pot Synthesis Process

2015 ◽  
Vol 34 ◽  
pp. 73-78
Author(s):  
Irtiqa Syed ◽  
Santa Chawla
Keyword(s):  
Quantum Dots ◽  
Band Gap ◽  
Quantum Confinement Effect ◽  
Hexagonal Phase ◽  
Fluorescence Decay ◽  
Synthesis Process ◽  
One Pot ◽  
One Pot Synthesis ◽  
Transmission Electron ◽  
Average Size

A novel one pot synthesis approach in oleic acid medium was employed to obtain monophasic ZnSe quantum dots (QD) of average size 3.7nm. The QDs were well crystalline in hexagonal phase as revealed by x-ray diffraction and high resolution transmission electron microscopy (HRTEM) studies. The ZnSe QDs exhibit sharp emission peak in the blue (465nm) with 385picosecond fluorescence decay time. The theoretical band gap corresponding to 3.7nm ZnSe QDs matched well with the measured 3.11eV band gap of synthesized QDs which thus showed quantum confinement effect.

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