منابع مشابه
Synthesis of High Carbon Materials from Acetylenic Precursors. Preparation of Aromatic Monomers Bearing Multiple Ethynyl Groups1
The synthesis of polyethynyl aromatics as starting materials for the preparation of highly cross-linked organic solids containing high atom fractions of carbon is described. Treatment of bromoand iodoaromatic compounds with (trimethylsily1)acetylene (TMSA) in the presence of palladium(0) and copper(1) in amine solvents yields (trimethylsily1)ethynyl-substituted aromatics. The TMS protecting gro...
متن کاملSynthesis of Ethylenic and Acetylenic Triorganotins with Bulky Organic Ligands
The syntheses of trineophyl(1a) and tri-(-)-menthylstannyl phenylacetylene (1b) as well as that of (E)-1-trineophylestannyl-2-phenylethene (2) and (E)-1-trineophylstannyl1,2-diphenylethene (3) are described. The hydrostannation of 1a with an excess of trimethyltin hydride led to 1,1,1-tris(trimethyltin)-2-phenylethane (4) and/or 1,1-bis(trimethyltin)2-phenylethene (5) depending on the reaction ...
متن کاملSynthesis, antimalarial and antitubercular activity of acetylenic chalcones.
A series of acetylenic chalcones were evaluated for antimalarial and antitubercular activity. The antimalarial data for this series suggests that growth inhibition of the W2 strain of Plasmodium falciparum can be imparted by the introduction of a methoxy group ortho to the acetylenic group. Most compounds were more active against non-replicating than replicating cultures of Mycobacterium tuberc...
متن کاملSynthesis and transformation of linear adamantane assemblies inside carbon nanotubes.
We report the assembly and thermal transformation of linear diamondoid assemblies inside carbon nanotubes. Our calculations and observations indicate that these molecules undergo selective reactions within the narrow confining space of a carbon nanotube. Upon vacuum annealing of adamantane molecules encapsulated in a carbon nanotube, we observe a sharp Raman feature at 1857 cm(-1), which we int...
متن کاملTemplate Synthesis of Carbon Nanofibers Containing Linear Mesocage Arrays
Carbon nanofibers containing linear mesocage arrays were prepared via evaporation induced self-assembly method within AAO template with an average channel diameter of about 25 nm. The TEM results show that the mesocages have an elongated shape in the transversal direction. The results of N2 adsorption-desorption analysis indicate that the sample possesses a cage-like mesoporous structure and th...
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ژورنال
عنوان ژورنال: TANSO
سال: 1998
ISSN: 1884-5495,0371-5345
DOI: 10.7209/tanso.1998.27