scholarly journals Synthesis and synthetic applications of (4-hydroxyphenyl)perfluoroalkylmethanols

2021 ◽  
Author(s):  
Kyu Terashima ◽  
Tomoko Kawasaki-Takasuka ◽  
Ichiro Minami ◽  
Takashi Yamazaki
Keyword(s):  
Convenient Method ◽  
Type Reduction

Development of the convenient method for the synthesis of (hydroxyphenyl)perfluoroalkylmethanols was achieved by the Meerwein-Ponndorf-Verley (MPV) type reduction of the in situ-generated perfluoroalkylated ketones as the key step, and the benzylic OH group of the resultant alcohols was converted to H or Rf(CH2)nO by way of the corresponding chlorides whose transformation was not easy by any other methods.

Rotary Beveling for In Situ Thin-Section Microscopy of Cell Cultures

1981 ◽  
Vol 39 ◽  
pp. 550-551
Author(s):  
Dean A. Handley ◽  
Jack T. Alexander ◽  
Shu Chien
Keyword(s):  
Cell Growth ◽  
Cell Cultures ◽  
Molecular Interactions ◽  
Convenient Method ◽  
Petri Dish ◽  
Simple Method ◽  
Thin Section Microscopy ◽  
Thin Sectioning ◽  
Organic Fluids

In situ preparation of cell cultures for ultrastructural investigations is a convenient method by which fixation, dehydration and embedment are carried out in the culture petri dish. The in situ method offers the advantage of preserving the native orientation of cell-cell interactions, junctional regions and overlapping configurations. In order to section after embedment, the petri dish is usually separated from the polymerized resin by either differential cryo-contraction or solvation in organic fluids. The remaining resin block must be re-embedded before sectioning. Although removal of the petri dish may not disrupt the native cellular geometry, it does sacrifice what is now recognized as an important characteristic of cell growth: cell-substratum molecular interactions. To preserve the topographic cell-substratum relationship, we developed a simple method of tapered rotary beveling to reduce the petri dish thickness to a dimension suitable for direct thin sectioning.

In situ monitoring of PISA morphologies

2021 ◽  
Author(s):  
Julia Y. Rho ◽  
Georg M. Scheutz ◽  
Satu Häkkinen ◽  
John B. Garrison ◽  
Qiao Song ◽  
...  
Keyword(s):  
Convenient Method ◽  
Self Assembly ◽  
In Situ Monitoring ◽  
Fluorescent Spectroscopy

Fluorescent spectroscopy is a convenient method for monitoring the progression of polymerization-induced self-assembly (PISA).

A convenient method for distinguishing human and mouse cells in situ

2020 ◽  
Author(s):  
Yongqiang Wang ◽  
Zixian Huang ◽  
Kaishun Hu ◽  
Jiangyun Peng ◽  
Weicheng Yao ◽  
...  
Keyword(s):  
Convenient Method ◽  
Mouse Cells ◽  
Human And Mouse

A Convenient Method for in situ Generation of I2 Using CuSO4/NaI and Its Applications to the Deprotection of Acetals, Etherifications and Iodolactonizations.

ChemInform ◽  
2006 ◽  
Vol 37 (23) ◽  
Author(s):  
Aaron D. Bailey ◽  
Steven M. Cherney ◽  
Peter W. Anzalone ◽  
Erin D. Anderson ◽  
Justin J. Ernat ◽  
...  
Keyword(s):  
Convenient Method ◽  
In Situ Generation

Copper-catalysed reductive amination of nitriles and organic-group reductions using dimethylamine borane

RSC Advances ◽  
2014 ◽  
Vol 4 (94) ◽  
pp. 51845-51849 ◽  
Author(s):  
Dominic van der Waals ◽  
Alan Pettman ◽  
Jonathan M. J. Williams
Keyword(s):  
Convenient Method ◽  
Reductive Amination ◽  
Copper Catalyst ◽  
Organic Group ◽  
Dimethylamine Borane

A mild convenient method for the aqueous reduction of a range of organic functionalities and the reductive amination of nitriles using a heterogeneous copper catalyst formed in situ.

Annulations of Podocarpic Acid Derivatives via an Aryne Intermediate

1994 ◽  
Vol 47 (10) ◽  
pp. 1815 ◽  
Author(s):  
RC Cambie ◽  
PI Higgs ◽  
PS Rutledge ◽  
PD Woodgate
Keyword(s):  
Convenient Method ◽  
Anthranilic Acid ◽  
High Yield ◽  
Substituted Furans

The cycloaddition of substituted furans to the diterpenoid aryne (39), generated by in situ diazotization of the anthranilic acid (1) followed by cleavage of the annulated 1,4- epoxydecahydrochrysenes, provides a convenient method for the preparation in high yield of the previously unknown 1-substituted octahydrochrysen-4-ols. Use of 1,3-dipoles under the same procedure, or under a modified procedure involving pre-isolation of the diazonium tetrafluoroborate salt (9), gave novel annulated heterocyclic products directly. Attempted [2+2] cycloadditions of electron-rich alkenes to the diterpenoid aryne (39) were largely unsuccessful but reaction with 1,1-dimethoxyethene by using in situ diazotization gave a product derived from an initial [2+2] cycloaddition.

Nondestructive Failure Analysis and Simulation of Encapsulated 0402 Multilayer Ceramic Chip Capacitors Under Thermal and Mechanical Loading

2009 ◽  
Vol 131 (1) ◽  
Author(s):  
B. Wunderle ◽  
T. Braun ◽  
D. May ◽  
B. Michel ◽  
H. Reichl
Keyword(s):  
Finite Element ◽  
Failure Analysis ◽  
Mechanical Loading ◽  
Convenient Method ◽  
Finite Element Simulations ◽  
Capacitance Measurement ◽  
Reliability Estimate ◽  
Analytical Technique ◽  
Multilayer Ceramic

The use of multilayer ceramic chip capacitors as integrated passive in, e.g., system in package applications needs methods to examine and predict their reliability. Therefore, a nondestructive failure analytical technique is described to detect cracks in the ceramic and the metallic layers within encapsulated 0402 surface mount device (SMD) capacitors. After choosing from techniques to reproducibly generate cracks, it is shown that an in situ capacitance measurement is a convenient method to detect these failures unambiguously. Finite element simulations support the experimental results. A reliability estimate for capacitor integrity under given loading conditions is given.

Simple access to spirooxadiazole compounds containing a quinoxaline moiety using a nitrile imine intermediate generated in situ

2017 ◽  
Vol 23 (5) ◽  
Author(s):  
Abdolali Alizadeh ◽  
Leila Moafi
Keyword(s):  
Convenient Method ◽  
Nitrile Imine

AbstractA convenient method for the synthesis of spiro[indeno[1,2-

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