Stereoselective amination via vinyl-silver intermediates derived from silver-catalyzed carboxylative cyclization of propargylamine

2020 ◽  
Vol 56 (66) ◽  
pp. 9517-9520
Author(s):  
Yuta Sadamitsu ◽  
Kodai Saito ◽  
Tohru Yamada
Keyword(s):  
Carbon Dioxide ◽  
Stereoselective Synthesis ◽  
Electrophilic Amination

The stereoselective synthesis of aminovinyloxazolidinones based on the electrophilic amination of a vinyl-silver intermediate, generated by silver-catalyzed carbon dioxide incorporation on a propargylamine, was achieved.

ChemInform Abstract: Stereoselective Synthesis with Carbon Dioxide

ChemInform ◽  
2013 ◽  
Vol 44 (48) ◽  
pp. no-no
Author(s):  
Nicola Kielland ◽  
Christopher J. Whiteoak ◽  
Arjan W. Kleij
Keyword(s):  
Carbon Dioxide ◽  
Stereoselective Synthesis

Bis(cycloocta-1,5-diene)nickel-Catalyzed Carbon Dioxide Fixation for the Stereoselective Synthesis of 3-Alkylidene-2-indolinones

2017 ◽  
Vol 359 (10) ◽  
pp. 1691-1707 ◽  
Author(s):  
Bukeyan Miao ◽  
Yangguangyan Zheng ◽  
Penglin Wu ◽  
Suhua Li ◽  
Shengming Ma
Keyword(s):  
Carbon Dioxide ◽  
Stereoselective Synthesis ◽  
Carbon Dioxide Fixation

Stereoselective Synthesis with Carbon Dioxide

2013 ◽  
Vol 355 (11-12) ◽  
pp. 2115-2138 ◽  
Author(s):  
Nicola Kielland ◽  
Christopher J. Whiteoak ◽  
Arjan W. Kleij
Keyword(s):  
Carbon Dioxide ◽  
Stereoselective Synthesis

Electron Cytochemical Study of Carbon Dioxide Laser Effect on Rhesus Monkey Cornea

1974 ◽  
Vol 32 ◽  
pp. 224-225
Author(s):  
K. C. Tsou ◽  
J. Morris ◽  
P. Shawaluk ◽  
B. Stuck ◽  
E. Beatrice
Keyword(s):  
Carbon Dioxide ◽  
Electron Microscope ◽  
Rhesus Monkey ◽  
Carbon Dioxide Laser ◽  
Cytochemical Study ◽  
Laser Effect

While much is known regarding the effect of lasers on the retina, little study has been done on the effect of lasers on cornea, because of the limitation of the size of the material. Using a combination of electron microscope and several newly developed cytochemical methods, the effect of laser can now be studied on eye for the purpose of correlating functional and morphological damage. The present paper illustrates such study with CO2 laser on Rhesus monkey.

The Critical Point Drying Method Applied to Scanning Electron Microscopy of L-929 Cells

1970 ◽  
Vol 28 ◽  
pp. 278-279
Author(s):  
Charles TurnbiLL ◽  
Delbert E. Philpott
Keyword(s):  
Electron Microscopy ◽  
Carbon Dioxide ◽  
Surface Tension ◽  
Critical Point ◽  
Freeze Drying ◽  
Attractive Alternative ◽  
Crystal Formation ◽  
Critical Point Drying ◽  
Time Required ◽  
Scanning Electron

The advent of the scanning electron microscope (SCEM) has renewed interest in preparing specimens by avoiding the forces of surface tension. The present method of freeze drying by Boyde and Barger (1969) and Small and Marszalek (1969) does prevent surface tension but ice crystal formation and time required for pumping out the specimen to dryness has discouraged us. We believe an attractive alternative to freeze drying is the critical point method originated by Anderson (1951; for electron microscopy. He avoided surface tension effects during drying by first exchanging the specimen water with alcohol, amy L acetate and then with carbon dioxide. He then selected a specific temperature (36.5°C) and pressure (72 Atm.) at which carbon dioxide would pass from the liquid to the gaseous phase without the effect of surface tension This combination of temperature and, pressure is known as the "critical point" of the Liquid.

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