34961-64-3Relevant articles and documents
The polymorphism of porphyrin 2D assemblies at the liquid-graphite interface: The effect of a polar solvent additive and a flexible spacer on the face-on and edge-on type molecular arrangements
Adachi, Kenya,Hirose, Takashi,Matsuda, Kenji
, p. 8836 - 8839 (2019)
Self-assembly structures of 5,10,15,20-tetrakis(4-substituted phenyl)porphyrins at the liquid-graphite interface were investigated by scanning tunneling microscopy. We found that the presence of a small amount of a polar solvent, i.e., only 0.5 vol% of octanoic acid in phenyloctane, significantly affected the selective formation of the face-on polymorph over the edge-on one likely due to the solvent-molecule interactions at the 2D interface.
Selective oxoammonium salt oxidations of alcohols to aldehydes and aldehydes to carboxylic acids
Qiu, Joseph C.,Pradhan, Priya P.,Blanck, Nyle B.,Bobbitt, James M.,Bailey, William F.
supporting information; experimental part, p. 350 - 353 (2012/03/09)
The oxidation of alcohols to aldehydes using stoichiometric 4-acetamido-2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate (1) in CH2Cl2 at room temperature is a highly selective process favoring reaction at the carbinol center best able to accommodate a positive charge. The oxidation of aldehydes to carboxylic acids by 1 in wet acetonitrile is also selective; the rate of the process correlates with the concentration of aldehyde hydrate. A convenient and high yield method for oxidation of alcohols directly to carboxylic acids has been developed.
Rhodium(I)-catalyzed 1,4-addition of arylboronic acids to acrylic acid in water: One-step preparation of 3-arylpropionic acids
Vautravers, Nicolas R.,Breit, Bernhard
supporting information; experimental part, p. 2517 - 2520 (2011/11/12)
A practical method for the one-step preparation of 3-arylpropionic acids through rhodium-catalyzed 1,4-addition of arylboronic acids to acrylic acid is reported. The method is applicable to a broad scope of aryl boronic acids and displays a wide functional group tolerance operating in water as the optimal reaction medium. Georg Thieme Verlag Stuttgart · New York.