Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 707-61-9, is researched, Molecular C11H13OP, about Catalytic transformation of silicon tetraisocyanate Si(NCO)4 to a polymeric silylcarbodiimide, the main research direction is silylcarbodiimide polymer synthesis silicon tetraisocyanate catalytic transformation; silicon carbide formation silylcarbodiimide polymer degradation.Quality Control of 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide.
A new way for the preparation of inorganic polymeric carbodiimide-based networks is presented which resembles the transformation of mol. isocyanates using 1-phenyl-3-methyl-2-phospholene-1-oxide as a catalyst. The resp. reaction sequence, well established in preparative organic chem., has been applied for the synthesis of carbodiimide-based SiNC(O) materials. Starting from Si(NCO)4 (silicon tetraisocyanate), a transformation to an insoluble extended inorganic array was achieved in boiling dodecane (T = 216 °C). Anal. of the polymer using X-ray diffraction, FT-IR, d. measurement, matrix-assisted laser desorption/ionization time of flight and TGA revealed that this highly moisture-sensitive amorphous network consists of oligomers of high molar mass and exhibits a high d. of around 1.5 g.cm-3, which corresponds quite well to the calculated d. of crystalline Si(NCN)2 reported in the literature. Degradation of this ‘SiNC(O) phase’ with the release of N2 and (CN)2 finally provided SiC as the only crystalline product. No indication of the formation of crystalline Si3N4 or intermediate crystalline ‘SiC2N4’, silicon carbodiimide (= Si(NCN)2), was noticed. Copyright © 2012 John Wiley & Sons, Ltd.
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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem