5959-52-4Relevant articles and documents
Synthesis of self-orienting triptycene adsorbates for STM investigations
Wolpaw, Adam J.,Aizer, Ayal A.,Zimmt, Matthew B.
, p. 7613 - 7615 (2003)
The syntheses of three C2 symmetric triptycenes containing two pendant groups are described. The pendant groups are designed to promote oriented adsorption to graphite or gold electrodes such that the unfunctionalized aryl group extends perpendicular to the surface. Initial STM studies are consistent with oriented adsorption on graphite.
2, 3, 6, 7 -pentycene tetracarboxylic dianhydride compound and synthesis method thereof
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Paragraph 0140-0144; 0209-0213, (2020/06/27)
The invention discloses a 2,3,6,7-pentaptycene tetracarboxylic dianhydride compound and a synthetic method thereof. The method comprises three stages. In the first stage, 2,3,6,7-tetramethyl-9,10-p-(2,3-anthryl)anthracene is synthesized; in the second stage, 2,3,6,7-pentaptycene tetracarboxylic acid is synthesized; and in the third stage, 2,3,6,7-pentaptycene tetracarboxylic dianhydride is synthesized. The method is cheap and available in raw materials and high in yield, the purity of products is high, and pentaptycene dianhydride can be efficiently synthesized at low cost. Compared with a series of new polyimide macromolecular materials polymerized from a diamine monomer in the prior art, the compound has great potential application value in the fields of membrane separation materials, dielectric materials and molecular interlocking functional materials.
Synthesizing method of 9,10-o-naphthyl anthracene-2,3,6,7-tetraformic anhydride
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Paragraph 0055; 0056; 0057, (2018/10/19)
The invention discloses a synthesizing method of 9,10-o-naphthyl anthracene-2,3,6,7-tetraformic anhydride. The method specifically includes the following steps of firstly, preparing 2,3,6,7-tetramethyl-9,10-o-naphthyl anthracene; secondly, synthesizing 9,10-o-naphthyl anthracene-2,3,6,7-tetraformic acid through 2,3,6,7-tetramethyl-9,10-o-naphthyl anthracene; thirdly, synthesizing 9,10-o-naphthyl anthracene-2,3,6,7-tetraformic anhydride through 9,10-o-naphthyl anthracene-2,3,6,7-tetraformic acid. High-value 9,10-o-naphthyl anthracene-2,3,6,7-tetraformic acid is obtained through two different methods, loss is small, the yield and purity are both improved, and mass production is easy.
PEPTIDES AND PEPTIDOMIMETIC COMPOUNDS, THE MANUFACTURING THEREOF AS WELL AS THEIR USE FOR PREPARING A THERAPEUTICALLY AND/OR PREVENTIVELY ACTIVE PHARMACEUTICAL COMPOSITION
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, (2010/04/25)
Peptides, peptidomimetics and derivatives thereof of the general formula I: H2N-GHRPX1-β-X4X5X6X7X8X9X10-X11 (I), in which X1-X10 denote one of the 20 genetically coded amino acids, wherein X8, X9 and X10 may also denote a single chemical bond;X11 denotes OR1 in which R1 equals hydrogen or (C1-C10) alkyl NR2R3 with R2 and R3 are equal or different and denote hydrogen, (C1-C10) alkyl, or a residue —W-PEG5-60K, in which the PEG residue is attached via a suitable spacer W to the N-atom, ora residue NH—Y-Z-PEG5-60K, in whichY denotes a chemical bond or a genetically coded amino acids from the group S, C, K or R andZ denotes a spacer, via which a polyethylene glycol (PEG)-residue can be attached, and their physiologically acceptable salts, andβ denotes an amino acid, or a peptidomimetic element, which induces a bend or turn in the peptide backbone.
