Novel Method of Tetramic Acid Synthesis: Silver-Catalyzed Carbon Dioxide Incorporation into Propargylic Amine and Intramolecular Rearrangement

2014 ◽  
Vol 16 (9) ◽  
pp. 2430-2433 ◽  
Author(s):  
Tomonobu Ishida ◽  
Ryo Kobayashi ◽  
Tohru Yamada
Keyword(s):  
Carbon Dioxide ◽  
Acid Synthesis ◽  
Intramolecular Rearrangement ◽  
Tetramic Acid ◽  
Novel Method

A Novel Method of 3D Printing High‐Loaded Oxide/H‐ZSM‐5 Catalyst Monoliths for Carbon Dioxide Reduction in Tandem with Propane Dehydrogenation

2020 ◽  
pp. 2000257
Author(s):  
Shane Lawson ◽  
Alireza Farsad ◽  
Busuyi Adebayo ◽  
Kyle Newport ◽  
Kurt Schueddig ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
3D Printing ◽  
Carbon Dioxide Reduction ◽  
Propane Dehydrogenation ◽  
Novel Method

EFFECT OF ALLOXAN, INSULIN, AND THYROXINE ON CHOLESTEROL AND FATTY ACID SYNTHESIS BY RAT LIVER HOMOGENATES

1957 ◽  
Vol 35 (1) ◽  
pp. 15-23 ◽  
Author(s):  
J. F. Scaife ◽  
B. B. Migicovsky
Keyword(s):  
Carbon Dioxide ◽  
Fatty Acids ◽  
Fatty Acid ◽  
Rat Liver ◽  
Fatty Acid Synthesis ◽  
Sodium Acetate ◽  
Cholesterol Synthesis ◽  
Acid Synthesis ◽  
Liver Homogenates ◽  
Vitro Effect

The in vitro effect of alloxan and insulin on the synthesis of cholesterol and fatty acids from 1-C14-sodium acetate by rat liver homogenates has been examined. Alloxan caused a reduction in the incorporation of acetate into cholesterol, fatty acids, and C14O2, but an increase in the oxygen consumption and carbon dioxide production. The addition of insulin to homogenates caused a reduction in cholesterol synthesis but an increase in fatty acid synthesis both for normal and diabetic animals. Homogenates from thyrotoxic rats exhibited a marked reduction in cholesterol synthesis when compared with normal animals. C14O2 production by homogenates from starved rats was appreciably lower than for those from normal animals. With this exception no appreciable difference was found in the oxygen uptake, carbon dioxide, or C14O2 production in homogenates from normal, starved, thyroxine-treated, or diabetic animals. Synthesized cholesterol was found to be located principally in the particulate matter of the homogenates after they had been incubated with 1-C14-sodium acetate. Homogenates from starved rats showed no greater tendency to degrade preformed cholesterol during incubation than did those from normal rats.

Novel method of niosome generation using supercritical carbon dioxide part I: process mechanics

2015 ◽  
Vol 25 (4) ◽  
pp. 334-346 ◽  
Author(s):  
Michael E. Wagner ◽  
Syed S. H. Rizvi
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Process Mechanics ◽  
Novel Method ◽  
Supercritical Carbon

scholarly journals A Novel Method for Calcium Carbonate Deposition in Wood That Increases Carbon Dioxide Concentration and Fire Resistance

Coatings ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 72
Author(s):  
Vicente Hernandez ◽  
Romina Romero ◽  
Sebastián Arias ◽  
David Contreras
Keyword(s):  
Carbon Dioxide ◽  
Weight Gain ◽  
Calcium Carbonate ◽  
Fire Resistance ◽  
Carbon Dioxide Concentration ◽  
Wood Products ◽  
Vacuum Impregnation ◽  
Carbonate Deposition ◽  
Novel Method ◽  
Calcium Carbonate Deposition

In this study, a novel method for calcium carbonate deposition in wood that increases carbon dioxide concentration and fire resistance is proposed. The method promoted the mineralization of radiata pine wood microstructure with calcium carbonate by using a process consisting in the vacuum impregnation of wood with a calcium chloride aqueous solution and the subsequent sequential diffusion of gaseous ammonium and carbon dioxide. In the most favorable conditions, the method yielded a weight gain of about 20 wt.% due to mineralization, which implied the accumulation of 0.467 mmol·g−1 of carbon dioxide in the microstructure of wood. In addition, a weight gain of about 8% was sufficient to provide fire resistance to a level similar to that achieved by a commercially available fire-retardant treatment. The feasibility of retaining carbon dioxide directly inside the wood microstructure can be advantageous for developing wood products with enhanced environmental characteristics. This method can be a potential alternative for users seeking materials that could be effective at supporting a full sustainable development.

A novel method of modifying poly(ethylene terephthalate) fabric using supercritical carbon dioxide

2010 ◽  
Vol 117 (4) ◽  
pp. 1897-1907 ◽  
Author(s):  
Wen-Xiao Ma ◽  
Chuan Zhao ◽  
Satoko Okubayashi ◽  
Isao Tabata ◽  
Kenji Hisada ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Novel Method ◽  
Poly Ethylene ◽  
Supercritical Carbon

Inhibition of δ-Aminolevulinic Acid Synthesis by Glyphosate

Weed Science ◽  
1981 ◽  
Vol 29 (5) ◽  
pp. 571-577 ◽  
Author(s):  
Lynn M. Kitchen ◽  
William W. Witt ◽  
Charles E. Rieck
Keyword(s):  
Carbon Dioxide ◽  
Zea Mays ◽  
Aminolevulinic Acid ◽  
Higher Plants ◽  
Acid Synthesis ◽  
The Other ◽  
Porphyrin Ring ◽  
Fresh Weight ◽  
Ring Compounds ◽  
Site Of Action

The effect of glyphosate [N-(phosphonomethyl) glycine] on barley (Hordeum vulgareL.) and corn (Zea maysL.) shoot δ-aminolevulinic acid (ALA) production was examined by monitoring ALA content in the tissue and measuring incorporation of14C precursors into ALA and chlorophylla. Barley shoot ALA content was significantly decreased by 1 mM glyphosate after 9, 11, and 15 h of illumination. ALA production by treated barley shoots was 30 nmoles•g fresh weight-1•h-1at each interval tested, compared with 75 to 120 nmoles•g fresh weight-1•h-1for the control. In corn shoots, ALA content was reduced 32, 45, and 58% by 0.1, 1.0, and 10.0 mM glyphosate, respectively, after 12 h illumination. Incorporation studies with14C-glutamate,14C-α-ketoglutarate, and14C-glycine into ALA showed a 77, 92, and 91% inhibition, respectively, in barley shoots treated with 1 mM glyphosate. Incorporation of14C-ALA into chlorophyllawas not affected by 1 mM glyphosate. Thus, the site of action of glyphosate may involve two enzyme pathways:one controlling the conversion of α-ketoglutarate to ALA, and the other controlling the condensation of glycine with succinyl CoA to form ALA and carbon dioxide. Inhibition of ALA synthesis blocks synthesis of chlorophyll, as well as all other porphyrin ring compounds found in higher plants. Thus, inhibition of ALA synthesis may be an integral component of the herbicidal mode of action of glyphosate.

EFFECT OF ALLOXAN, INSULIN, AND THYROXINE ON CHOLESTEROL AND FATTY ACID SYNTHESIS BY RAT LIVER HOMOGENATES

1957 ◽  
Vol 35 (1) ◽  
pp. 15-23 ◽  
Author(s):  
J. F. Scaife ◽  
B. B. Migicovsky
Keyword(s):  
Carbon Dioxide ◽  
Fatty Acids ◽  
Fatty Acid ◽  
Rat Liver ◽  
Fatty Acid Synthesis ◽  
Sodium Acetate ◽  
Cholesterol Synthesis ◽  
Acid Synthesis ◽  
Liver Homogenates ◽  
Vitro Effect

The in vitro effect of alloxan and insulin on the synthesis of cholesterol and fatty acids from 1-C14-sodium acetate by rat liver homogenates has been examined. Alloxan caused a reduction in the incorporation of acetate into cholesterol, fatty acids, and C14O2, but an increase in the oxygen consumption and carbon dioxide production. The addition of insulin to homogenates caused a reduction in cholesterol synthesis but an increase in fatty acid synthesis both for normal and diabetic animals. Homogenates from thyrotoxic rats exhibited a marked reduction in cholesterol synthesis when compared with normal animals. C14O2 production by homogenates from starved rats was appreciably lower than for those from normal animals. With this exception no appreciable difference was found in the oxygen uptake, carbon dioxide, or C14O2 production in homogenates from normal, starved, thyroxine-treated, or diabetic animals. Synthesized cholesterol was found to be located principally in the particulate matter of the homogenates after they had been incubated with 1-C14-sodium acetate. Homogenates from starved rats showed no greater tendency to degrade preformed cholesterol during incubation than did those from normal rats.

Mesoporous covalent organic framework: An active photo-catalyst for formic acid synthesis through carbon dioxide reduction under visible light

2020 ◽  
Vol 484 ◽  
pp. 110730 ◽  
Author(s):  
Priyanka Sarkar ◽  
Sk. Riyajuddin ◽  
Anjan Das ◽  
Arpita Hazra Chowdhury ◽  
Kaushik Ghosh ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Formic Acid ◽  
Visible Light ◽  
Acid Synthesis ◽  
Carbon Dioxide Reduction ◽  
Photo Catalyst ◽  
Covalent Organic Framework ◽  
Organic Framework
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