Search Results - "Morikawa, Takahiro"
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Trichloromethylative Olefin Cycloamination by Photoredox Catalysis
Published in European journal of organic chemistry (26-08-2021)“…The trichloromethyl group is an important functionality. It is a useful synthetic moiety and appears in the structures of natural and biologically active…”
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Chiral Holmium Complex-Catalyzed Diels–Alder Reaction of Silyloxyvinylindoles: Stereoselective Synthesis of Hydrocarbazoles
Published in Organic letters (18-10-2013)“…The catalytic and asymmetric cycloaddition between 3-[1-(silyloxy)vinyl]indoles and electron-deficient olefins gave substituted hydrocarbazoles in up to 99%…”
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Chiral Holmium Complex-Catalyzed Synthesis of Hydrocarbazole from Siloxyvinylindole and Its Application to the Enantioselective Total Synthesis of (−)-Minovincine
Published in Journal of organic chemistry (04-09-2015)“…The catalytic and enantioselective total synthesis of (−)-minovincine has been accomplished. The key highly substituted hydrocarbazole derivative was obtained…”
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Enantioselective total synthesis of a natural hydrocarbazolone alkaloid, identification of its stereochemistry, and revision of its spectroscopic data
Published in Tetrahedron: asymmetry (15-08-2017)“…[Display omitted] The natural hydrocarbazolone alkaloid (1R,2R,3R)-3-hydroxy-1,2-dimethyl-1,2,3,9-tetrahydro-4H-carbazol-4-one has been synthesized in a…”
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Total Synthesis of Carbazomycins A and B
Published in Chemical & pharmaceutical bulletin (2018)“…Total syntheses of carbazomycins A and B were demonstrated using a ytterbium-catalyzed Diels–Alder reaction with (silyloxyvinyl)indole as a diene. The densely…”
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Stereoselective synthesis of chiral hydrocarbazoles via the catalytic Diels–Alder reaction of siloxyvinylindole and cyclic Z-olefin
Published in Tetrahedron letters (10-12-2014)“…[Display omitted] The catalytic Diels–Alder reaction of siloxyvinylindole and cyclic Z-olefin derived from pyroglutamic acid gave optically active substituted…”
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Phylogenetic Diversity and Single-Cell Genome Analysis of “Melainabacteria”, a Non-Photosynthetic Cyanobacterial Group, in the Termite Gut
Published in Microbes and Environments (2018)“…Termite guts harbor diverse yet-uncultured bacteria, including a non-photosynthetic cyanobacterial group, the class “Melainabacteria”. We herein reported the…”
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Bromisoval-induced bromism with status epilepticus mimicking Wernicke's encephalopathy: report of two cases
Published in BMC neurology (16-05-2022)“…Bromine compounds are used in several drugs, including over-the-counter drugs. They sometimes cause intoxication known as bromism. Although the acute…”
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Electrical Phase-Change Memory: Fundamentals and State of the Art
Published in Japanese Journal of Applied Physics (01-08-2009)Get full text
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10 Fast write, 80% energy saving temperature controlling set method for multi-level cell phase change memories to solve the scaling blockade
Published in Solid-state electronics (01-03-2013)“…► A temperature controlling set method is proposed to reduce both energy and write time of MLC-PCM. ► The proposed set method achieves ∼80% of energy saving…”
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Superlattice Phase Change Memory Fabrication Process for Back End of Line Devices
Published in Japanese Journal of Applied Physics (01-05-2013)“…The superlattice film with the periodical thin film layers of Sb 2 Te 3 /GeTe used as a phase change memory was studied for deposition in the crystal phase. We…”
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A 4F2-cross-point phase change memory using nano-crystalline doped GeSbTe material
Published in Japanese Journal of Applied Physics (14-01-2015)“…This paper reports on the use of nano-crystalline doped GeSbTe, or nano-GST, to fabricate a cross-point phase change memory with 4F2 cell size and test results…”
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Device Design Consideration for Robust SiC VDMOSFET With Self-Aligned Channels Formed by Tilted Implantation
Published in IEEE transactions on electron devices (01-08-2019)“…We designed a simple self-aligned process for defining short channels in 3.3-kV SiC mymargin DMOSFETs. We utilized a tilt-angle ion implantation technique in…”
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Oxidative Entry into the Illicium Sesquiterpenes: Enantiospecific Synthesis of (+)-Pseudoanisatin
Published in Journal of the American Chemical Society (28-12-2016)“…Illicium sesquiterpenes have been the subject of numerous synthetic efforts due to their ornate and highly oxidized structures as well as significant…”
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Performance Improvement for 3.3 kV 1000 A High-Power Density Full-SiC Power Modules With Sintered Copper Die Attach
Published in IEEE journal of emerging and selected topics in power electronics (01-10-2024)“…To increase the power density of 3.3 kV full-silicon carbide (SiC) power modules, a sintered copper die attach and an SBD-less structure were combined to yield…”
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Bowing-head sign: rare but detectable in pre-catastrophic hip implant failure
Published in Archives of orthopaedic and trauma surgery (01-12-2020)“…Recently, catastrophic failure (i.e., dissociation between the metal femoral head and stem due to stem neck deformation) after total hip arthroplasty (THA) has…”
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1.2 kV silicon carbide Schottky barrier diode embedded MOSFETs with extension structure and titanium-based single contact
Published in Japanese Journal of Applied Physics (01-02-2020)“…Recently, to avoid forward-voltage degradation of body diodes, which is caused by the expansion of stacking faults due to hole-current conduction through the…”
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Development of a Terpene Feedstock-Based Oxidative Synthetic Approach to the Illicium Sesquiterpenes
Published in Journal of the American Chemical Society (20-02-2019)“…The Illicium sesquiterpenes are a family of natural products containing over 100 highly oxidized and structurally complex members, many of which display…”
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Analysis of Degradation Phenomena in Bipolar Degradation Screening Process for SiC-MOSFETs
Published in 2019 31st International Symposium on Power Semiconductor Devices and ICs (ISPSD) (01-05-2019)“…We have developed a 3.3 kV ultra-high power density SiC power module, which was realized by fulfilment with only SiC-MOSFETs. As a countermeasure for bipolar…”
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