An Improved Purification Method for the Rapid Synthesis of High Purity Fluorobutyrophenone Neuroleptics from Nitro and Chloro Precursors Suitable for PET Study

1994 ◽  
Vol 23 (12) ◽  
pp. 2295-2298 ◽  
Author(s):  
Kazunari Hashizume ◽  
Naoto Hashimoto ◽  
David G. Cork ◽  
Yoshihiro Miyake
Keyword(s):  
High Purity ◽  
Rapid Synthesis ◽  
Purification Method

scholarly journals Dihydronicotinamide riboside: synthesis from nicotinamide riboside chloride, purification and stability studies

RSC Advances ◽  
2021 ◽  
Vol 11 (34) ◽  
pp. 21036-21047
Author(s):  
Amin Zarei ◽  
Leila Khazdooz ◽  
Mojtaba Enayati ◽  
Sara Madarshahian ◽  
Timothy J. Wooster ◽  
...  
Keyword(s):  
High Purity ◽  
Stability Studies ◽  
Purification Method ◽  
Nicotinamide Riboside

A convenient and scalable method for synthesis of dihydronicotinamide riboside (NRH) from the commercially available nicotinamide riboside chloride (NRCl) is elaborated as well as a fast purification method that led to high purity NRH.

Next generation purification method for achieving low trace metals in ultra-high purity chemicals

2021 ◽  
Author(s):  
Majid Entezarian ◽  
Mitsuaki Kobayashi ◽  
Yukihisa Okada ◽  
Takaaki Shirai ◽  
Keita Abe ◽  
...  
Keyword(s):  
Trace Metals ◽  
High Purity ◽  
Next Generation ◽  
Purification Method ◽  
Ultra High Purity

scholarly journals Method development for producing thin 14C foils

2020 ◽  
Vol 229 ◽  
pp. 04002
Author(s):  
Matthew Gott ◽  
John Greene ◽  
Igor Pavlovsky ◽  
Richard Fink
Keyword(s):  
High Purity ◽  
Nuclear Physics ◽  
Method Development ◽  
Carbon Oxide ◽  
Carbon Powder ◽  
Robust Method ◽  
Purification Method ◽  
Physics Community ◽  
Thin Foils

Thin, isotopic 14C foils are of great interest to the nuclear physics community as neutron-rich targets. Historically, these foils have been extremely difficult to prepare and an effort is underway to make them readily available. The stock material of 14C available at Argonne contains a number of oxide impurities (SiO2, MgO, and Al2O3), which affect the composition and stability of the fabricated foil. A simple, robust method was developed (using natC as a surrogate) to purify the 14C material while minimizing loss and potential spread of the material. Thin foils were fabricated using the purified carbon, the unpurified carbon/oxide mix, and purchased high-purity carbon powder. SEM and EDS of the resulting foils was performed and the efficacy of this purification method was demonstrated.

The Rapid Synthesis of High Purity [18F]Butyrophenone Neuroleptics from Nitro Precursors for PET Study

1995 ◽  
Vol 24 (4) ◽  
pp. 303-304 ◽  
Author(s):  
Kazunari Hashizume ◽  
Naoto Hashimoto ◽  
Hiroo Kato ◽  
David G. Cork ◽  
Yoshihiro Miyake
Keyword(s):  
High Purity ◽  
Rapid Synthesis

scholarly journals Purification Method for Achieving Low Trace Metals in Ultra-High Purity Chemicals

2021 ◽  
Vol 34 (2) ◽  
pp. 205-211
Author(s):  
Mitsuaki Kobayashi ◽  
Yukihisa Okada ◽  
Takaaki Shirai ◽  
Osamu Sawajiri ◽  
Robert Gieger ◽  
...  
Keyword(s):  
Trace Metals ◽  
High Purity ◽  
Purification Method ◽  
Ultra High Purity

Bacillus subtilis Endospores at High Purity and Recovery Yields: Optimization of Growth Conditions and Purification Method

2012 ◽  
Vol 66 (3) ◽  
pp. 279-285 ◽  
Author(s):  
Milene B. Tavares ◽  
Renata D. Souza ◽  
Wilson B. Luiz ◽  
Rafael C. M. Cavalcante ◽  
Caroline Casaroli ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
High Purity ◽  
Growth Conditions ◽  
Purification Method

Efficient continuous synthesis of high purity deep eutectic solvents by twin screw extrusion

2016 ◽  
Vol 52 (22) ◽  
pp. 4215-4218 ◽  
Author(s):  
D. E. Crawford ◽  
L. A. Wright ◽  
S. L. James ◽  
A. P. Abbott
Keyword(s):  
Mechanochemical Synthesis ◽  
High Purity ◽  
Continuous Flow ◽  
Choline Chloride ◽  
Deep Eutectic Solvents ◽  
Twin Screw Extrusion ◽  
Rapid Synthesis ◽  
Continuous Synthesis ◽  
Screw Extrusion ◽  
Twin Screw

Mechanochemical synthesis has been applied to the rapid synthesis of Deep Eutectic Solvents (DESs), including Reline 200 (choline chloride : urea, 1 : 2), in a continuous flow methodology by Twin Screw Extrusion (TSE).

Iodine doping of substituted μ-carbido iron diphthalocyanines

2011 ◽  
Vol 15 (07n08) ◽  
pp. 748-755 ◽  
Author(s):  
Gloria Zanotti ◽  
Sara Notarantonio ◽  
Anna Maria Paoletti ◽  
Giovanna Pennesi ◽  
Gentilina Rossi
Keyword(s):  
Physicochemical Properties ◽  
General Formula ◽  
High Purity ◽  
Iodine Doping ◽  
Purification Method ◽  
High Purity Grade ◽  
Tert Butyl ◽  
Yield And Purity ◽  
Purity Grade ◽  
Conduction Properties

Hemi and amphi-substituted μ-carbido iron diphthalocyanine having general formula (t- bu ) 4PcFe-C-FePc and (t- bu ) 4PcFe-C-FePc (t- bu )4 have been oxidized with I2. The oxidized compounds have been characterized and their physicochemical properties have been studied; the results obtained lead to assign them the formula [(t- Bu ) 4PcFe-C-FePc ] (I5)0.66 and [[(t- Bu ) 4PcFe ]2 C ]] (I5)0.66 respectively. The conduction properties, related to the role played by the pushing groups inserted in the peripheral macrocycles, are discussed. Moreover, an effective purification method for improving the yield and purity of iron tetra-tert-butyl phthalocyanine is described, the difficulty being able to obtain this precursor with a high purity grade.

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