99-31-0Relevant articles and documents
Cu nanorods and nanospheres and their excellent catalytic activity in chemoselective reduction of nitrobenzenes
Patra, Astam Kumar,Dutta, Arghya,Bhaumik, Asim
, p. 651 - 655 (2010)
Highly selective chemical route for the hydrothermal synthesis of Cu0 nanorods and nanospheres using a long chain saturated fatty acid, viz. lauric acid as template is reported. Our experimental results revealed Cu nanorods are of ca. 14 nm diameters and 100-235 nm length, whereas the nanospheres are of dimensions 2-15 nm diameter. Cu nanospheres show much enhanced catalytic activity over the nanorods for the chemoselective reduction of 4-nitrophenol and 5-nitroisophthalic acid to respective substituted anilines in one pot at room temperature, suggesting the role of particle size and shape in catalytic reduction.
Structural diversity and luminescent sensing of three coordination polymers based on the hydrolysates of N,N′-bis(3,5-dicarboxylatophenyl)pyromelliticdi-imide)
Fan, Liming,Wang, Jiang,Zhao, Li,Zhang, Yujuan,Wang, Xiaoqing,Hu, Tuoping,Zhang, Xiutang
, p. 54 - 61 (2018/06/19)
Based on the hydrolysates of N,N′-bis(3,5-dicarboxylatophenyl)pyromelliticdi-imide) (H4L) and 1,3-bis(imidazol-1-ylmethyl)benzene (bimb), three coordination polymers, namely, {[Zn(BTC)0.5(bimb)]·4H2O}n (1), [Cu(BTC)0.5(bimb)]n (2), and {[Cd(AIP)(H2O)]·H2O}n (3), have been obtained under solvothermal conditions. The possible hydrolysis mechanism of H4L was investigated here. Structural analyses reveal that complex 1 is a 3D (4,4)-c {64.82}{66}2-bbf net. Complex 2 displays a 2D 4-c {32.62.72}-kgm sheet. While complex 3 exhibits a 3D (3,6)-c {4.62}2{42.610.83}-rtl net based on binuclear {Cd2(COO)4} SBUs. Besides, luminescent sensing investigation indicated that 1 and 3 exhibit highly sensitive and selective sensing of chromate anions in aqueous solution.
Method for preparing 5-aminoisophthalic acid
-
Paragraph 0020; 0021; 0022; 0023; 0024; 0025, (2017/07/19)
The invention creatively provides a method for preparing high-purity 5-aminoisophthalic acid. The method is characterized in that 5-nitroisophthalic acid is used as the raw material, and nitryl is reduced through hydrazine hydrate/ raney nickel under the alkali condition; then the product is acidized with acetic acid until the pH is 3.5-4.0, and thus the high-purity 5-aminoisophthalic acid can be separated out. Compared with a currently publically reported preparation method, the preparation method has the advantages that the nitryl is reduced through hydrazine hydrate/raney nickel; the acetic acid is utilized for acidizing to separate out the product; the side reaction is few; the yield is high; the product purity is 99.5% or above; the operation is simple and convenient; the industrial production can be carried out.
Naaladase inhibitors for treating retinal disorders and glaucoma
-
, (2008/06/13)
The present invention relates to pharmaceutical compositions and methods for treating a retinal disorder or glaucoma using NAALADase inhibitors.
Naaladase inhibitors for treating amyotrophic lateral sclerosis
-
, (2008/06/13)
The present invention relates to pharmaceutical compositions and methods for treating amyotrophic lateral sclerosis using NAALADase inhibitors.
Benzenedicarboxylic acid derivatives
-
, (2008/06/13)
New benzenedicarboxylic acid derivative compounds; pharmaceutical compositions, diagnostic methods, and diagnstic kits that include those compounds; and methods of using those compounds for inhibiting NAALADase enzyme activity, detecting diseases where NAALADase levels are altered, effecting neuronal activity, effecting TGF-β activity, inhibiting angiogenesis, and treating glutamate abnormalities, neutopathy, pain, compulsive disorders, prostate diseases, cancers, and glaucoma.
PROCESS FOR THE PREPARATION OF A HALOSUBSTITUTED AROMATIC ACID
-
, (2008/06/13)
The present invention refers to a process for the preparation of 5-amino-2,4,6-triiodo-1,3-benzenedicarboxylic acid, comprising the following steps: a) catalytic hydrogenation of 5-nitro-1,3-benzenedicarboxylic acid in neutral or basic environment, which gives an aqueous solution of 5-amino-1,3-benzenedicarboxylic acid sodium salt; b) direct iodination of the 5-amino-1,3-benzenedicarboxylic acid sodium salt solution deriving from step a), without further purification, with a solution of ICl in HCl, being the 5-amino-1,3-benzenedicarboxylic acid sodium salt solution previously added with HCl and H2SO4.
PROCESS FOR THE PREPARATION OF A DICARBOXYLIC ACID DICHLORIDE
-
, (2008/06/13)
The present invention refers to a Process for the preparation of S-(-)-5-[[2-(acetyloxy)-1-oxopropyl]amino]-2,4,6-triiodo-1,3-benzenedicarboxylic acid dichloride of formula (I) comprising the reaction between S-(-)-[2-(acetyloxy)]propionic acid chloride and 5-amino-2,4,6-triiodo-, 1,3-benzenedicarboxylic acid dichloride, in an aprotic dipolar solvent and in presence of a halogenhydric acid.
Synthesis of achiral linker reagents for direct labelling of oligonucleotides on solid supports
Behrens, Carsten,Dahl, Otto
, p. 291 - 305 (2007/10/03)
Full experimental procedures for the synthesis of a series of new functional linker reagents (14-16) and solid supports (11-13) are reported. The achiral linker reagents and supports can be used for high yield incorporation of free amino groups, fluorescein or biotin into DNA oligomers.
Process for the preparation of a dicarboxylic acid di-chloride
-
, (2008/06/13)
The present invention refers to a Process for the preparation of S-(-)-5-??2-(acetyloxy)-1-oxopropyl!amino!-2,4,6-triiodo-1,3-benzenedicarboxylic acid dichloride of formula (I) comprising the reaction between S-(-)-?2-(acetyloxy)!propionic acid chloride and 5-amino-2,4,6-triiodo-, 1,3-benzenedicarboxylic acid dichloride, in an aprotic dipolar solvent and in presence of a halogenhydric acid.
