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Showing 1 to 7 of 7 for “"boron trichloride"”.
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Nuclear Quadrupole Double Resonance Methods and Their Application to Boron-Trichloride
Made available in DSpace on 2014-12-13T20:10:42Z (GMT). No. of bitstreams: 1 8004166.pdf: 7753927 bytes, checksum: 2b205b0c533bc9dca110bb545eb0327b (MD5) Previous issue date: 1979
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Studies Toward a General Synthesis of Poly-Substituted Alpha-Hydroxytropolones
… openings will be discussed; one that utilizes boron trichloride that attains α-hydroxytropolones and 7-methoxytropolones, and a triflic acid mediated sequence that yields exclusive 7-methoyxtropolones and furans. Finally, a new reaction with the oxidopyrylium species will be highlighted that …
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Boron Subnaphthalocyanines: The First Unsubstituted Examples, New Boron Lewis Acids, Random Bay Position Halogenation, and Computational Material Screening
Boron subnaphthalocyanines (BsubNcs) are a class of materials that our lab has shown to be alloyed mixtures of derivatives that are randomly chlorinated in the bay positions, resulting from their formation from boron trichloride. These alloyed mixtures were shown to have a positive influence on the …
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The syntheses of some naturally derived naphthoquinones
… and two methyl groups peri- to the quinone with boron trichloride, which led to spontaneous spiro ring formation, ultimately bikaverin was produced in three steps in an overall of 34%. The syntheses of the naturally occurring product ventiloquinone E and its trans-isomer as well as an isomer of …
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Designed Synthesis of Halogenated Borazine-Linked Polymers and Their Applications in Gas Storage and Separation
… benzidine, or tetra-(4-aminophenyl)methane with boron tribromide or boron trichloride followed by the thermolysis reaction of the resulting in situ adduct. All resulting polymers exist as amorphous polymers whose chemical connectivity was confirmed through FT-IR, solid state 11B and 13C NMR, and …
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Contracted phthalocyanine macrocycles: Conjugation with nanoparticles and the first synthesis of meso-substituted Boron SubTriBenzoDiAzaPorphyrin hybrids (SubTBDAPs)
… and substitution with the meso-phenyl ring. Boron trichloride has been used in a two-step, one-pot reaction in a preliminary strategy to give access to the hybrids. However, trialkoxyborates are the preferred boron source; they provide the apical substituent, as well as act as Lewis acid and …
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Characterization and modeling of dry etch processes for titanium nitride and titanium films in Cl₂/N₂ and BCl₃ plasmas
In the past few years, the demands for high speed semiconductor integrated circuits have warranted new techniques in their fabrication process which will meet the ever-shrinking dimensions. The gaseous plasma assisted etching is one of these revolutionary processes. However, the plasma and the etch …