Pd-Catalyzed Addition of Organoboronic Acids to Alkynes at Room Temperature.

ChemInform ◽  
2005 ◽  
Vol 36 (29) ◽  
Author(s):  
Arun Kumar Gupta ◽  
Ki Seong Kim ◽  
Chang Ho Oh
Keyword(s):  
Room Temperature ◽  
Organoboronic Acids

Metal- and Base-Free Room-Temperature Amination of Organoboronic Acids with N -Alkyl Hydroxylamines

2018 ◽  
Vol 130 (30) ◽  
pp. 9600-9604 ◽  
Author(s):  
Hong-Bao Sun ◽  
Liang Gong ◽  
Yu-Biao Tian ◽  
Jin-Gui Wu ◽  
Xia Zhang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Organoboronic Acids

α,β-Diaryl unsaturated ketones via palladium-catalyzed ring-opening of cyclopropenones with organoboronic acids

2018 ◽  
Vol 5 (10) ◽  
pp. 1651-1654 ◽  
Author(s):  
Lidong Shan ◽  
Ge Wu ◽  
Miaochang Liu ◽  
Wenxia Gao ◽  
Jinchang Ding ◽  
...  
Keyword(s):  
Ring Opening ◽  
Room Temperature ◽  
Unsaturated Ketones ◽  
Organoboronic Acids ◽  
Palladium Catalyzed

Palladium-catalyzed ring-opening acylation of cyclopropenones with organoboronic acids (aryl and vinylboronic acids) at room temperature has been developed to synthesise α,β-diaryl unsaturated ketones with good yields and excellent stereospecificity.

scholarly journals Back Cover: Metal- and Base-Free Room-Temperature Amination of Organoboronic Acids with N -Alkyl Hydroxylamines (Angew. Chem. Int. Ed. 30/2018)

2018 ◽  
Vol 57 (30) ◽  
pp. 9554-9554
Author(s):  
Hong-Bao Sun ◽  
Liang Gong ◽  
Yu-Biao Tian ◽  
Jin-Gui Wu ◽  
Xia Zhang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Back Cover ◽  
Organoboronic Acids

scholarly journals Rücktitelbild: Metal- and Base-Free Room-Temperature Amination of Organoboronic Acids with N -Alkyl Hydroxylamines (Angew. Chem. 30/2018)

2018 ◽  
Vol 130 (30) ◽  
pp. 9700-9700
Author(s):  
Hong-Bao Sun ◽  
Liang Gong ◽  
Yu-Biao Tian ◽  
Jin-Gui Wu ◽  
Xia Zhang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Organoboronic Acids

Metal- and Base-Free Room-Temperature Amination of Organoboronic Acids with N -Alkyl Hydroxylamines

2018 ◽  
Vol 57 (30) ◽  
pp. 9456-9460 ◽  
Author(s):  
Hong-Bao Sun ◽  
Liang Gong ◽  
Yu-Biao Tian ◽  
Jin-Gui Wu ◽  
Xia Zhang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Organoboronic Acids

Pd-Catalyzed Addition of Organoboronic Acids to Alkynes at Room Temperature

Synlett ◽  
2005 ◽  
pp. 457-460 ◽  
Author(s):  
Chang Ho Oh ◽  
Arun Kumar Gupta ◽  
Ki Seong Kim
Keyword(s):  
Room Temperature ◽  
Organoboronic Acids

Dependence of Intergranular Fracture on Boundary Topography and Cohesion

1973 ◽  
Vol 31 ◽  
pp. 150-151
Author(s):  
J. E. Doherty ◽  
A. F. Giamei ◽  
B. H. Kear ◽  
C. W. Steinke
Keyword(s):  
Grain Boundary ◽  
Room Temperature ◽  
Nickel Base Superalloy ◽  
Boundary Shear ◽  
Room Temperature Ductility ◽  
Solid Solution Matrix ◽  
Nickel Base ◽  
Solution Matrix ◽  
Different Levels ◽  
Base Superalloy

Recently we have been investigating a class of nickel-base superalloys which possess substantial room temperature ductility. This improvement in ductility is directly related to improvements in grain boundary strength due to increased boundary cohesion through control of detrimental impurities and improved boundary shear strength by controlled grain boundary micros true tures.For these investigations an experimental nickel-base superalloy was doped with different levels of sulphur impurity. The micros tructure after a heat treatment of 1360°C for 2 hr, 1200°C for 16 hr consists of coherent precipitates of γ’ Ni3(Al,X) in a nickel solid solution matrix.

Hepatocyte Alterations in Guinea Pigs FED Polychlorinated Biphenyls (PCBs), Dibenzodioxins (PCDD), AND DIBENZOFURANS (PCDF)

1982 ◽  
Vol 40 ◽  
pp. 56-57
Author(s):  
J. N. Turner ◽  
D. N. Collins
Keyword(s):  
Guinea Pigs ◽  
Room Temperature ◽  
Dose Group ◽  
Methyl Cellulose ◽  
Uranyl Acetate ◽  
Target Organ ◽  
Office Building ◽  
Lead Citrate ◽  
Control Groups ◽  
Cooling Fluid

A fire involving an electric service transformer and its cooling fluid, a mixture of PCBs and chlorinated benzenes, contaminated an office building with a fine soot. Chemical analysis showed PCDDs and PCDFs including the highly toxic tetra isomers. Guinea pigs were chosen as an experimental animal to test the soot's toxicity because of their sensitivity to these compounds, and the liver was examined because it is a target organ. The soot was suspended in 0.75% methyl cellulose and administered in a single dose by gavage at levels of 1,10,100, and 500mgm soot/kgm body weight. Each dose group was composed of 6 males and 6 females. Control groups included 12 (6 male, 6 female) animals fed activated carbon in methyl cellulose, 6 males fed methyl cellulose, and 16 males and 10 females untreated. The guinea pigs were sacrificed at 42 days by suffocation in CO2. Liver samples were immediately immersed and minced in 2% gluteraldehyde in cacadylate buffer at pH 7.4 and 4°C. After overnight fixation, samples were postfixed in 1% OsO4 in cacodylate for 1 hr at room temperature, embedded in epon, sectioned and stained with uranyl acetate and lead citrate.

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