A5028018576- Chemical Synthesis and Reactions
- Synthetic Organic Chemistry Methods
- Asymmetric Synthesis and Catalysis
- Asymmetric Hydrogenation and Catalysis
- Advanced Synthetic Organic Chemistry
- Chemical Synthesis and Analysis
- Carbohydrate Chemistry and Synthesis
- Phenothiazines and Benzothiazines Synthesis and Activities
- Sulfur-Based Synthesis Techniques
- Plant Reproductive Biology
- Plant Molecular Biology Research
- Chemical Synthesis and Characterization
- Analytical Methods in Pharmaceuticals
- Synthesis and Biological Activity
- Synthesis and Biological Evaluation
- Quinazolinone synthesis and applications
- Polyoxometalates: Synthesis and Applications
- Cyclopropane Reaction Mechanisms
- Polysaccharides and Plant Cell Walls
- Light effects on plants
- Model-Driven Software Engineering Techniques
- Organoboron and organosilicon chemistry
- Carbon dioxide utilization in catalysis
- Synthesis of heterocyclic compounds
- Antibiotics Pharmacokinetics and Efficacy
Nagoya University
1991-2000
Irvine University
2000
University of California, Irvine
1999
Japan Science and Technology Agency
1998
In the higher plant, Arabidopsis thaliana, results from recent intensive studies suggested that His-to-Asp phosphorelay mechanisms are involved presumably in propagation of environmental stimuli, such as phytohormones (e.g. ethylene and cytokinin). Here we identified characterized a set novel genes whose products considerably resemble authentic response regulators (ARR-series) sense they have phospho-accepting receiver-like domain. However, should be discriminated classical ones strict lack...
His-Asp phosphorelays are evolutionary-conserved powerful biological tactics for intracellular signal transduction. Such a phosphorelay is generally made up of "sensor histidine (His)-kinases", "response regulators", and "histidine-containing (HPt) phosphotransmitters". In the higher plant, Arabidopsis thaliana, results from recent intensive studies suggested that may be widely used propagating environmental stimuli, such as phytohormones (e.g., ethylene cytokinin). this study, we first...
Abstract Tris(pentafluorophenyl)boron is an efficient, air stable, and water tolerant Lewis acid catalyst for the aldol-type Michael reactions of silyl enol ethers with carbonyl compounds or other electrophiles (trimethyl orthoformate, dimethyl acetal, chloromethyl methyl ether), allylation reaction allylsilanes aldehydes, Diels–Alder dienes α,β-unsaturated aldehydes. A solution formaldehyde in applicable as electrophile. Also, ketene acetals aromatic aliphatic imines successfully carried...
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTAntimony-Templated Macrolactamization of Tetraamino Esters. Facile Synthesis Macrocyclic Spermine Alkaloids, (±)-Buchnerine, (±)-Verbacine, (±)-Verbaskine, and (±)-VerbascenineKazuaki Ishihara, Yoshichika Kuroki, Naoyuki Hanaki, Suguru Ohara, Hisashi YamamotoView Author Information School Engineering, Nagoya University Furo-cho, Chikusa, 464-01, Japan Cite this: J. Am. Chem. Soc. 1996, 118, 6, 1569–1570Publication Date (Web):February 14,...
The aldol-type reaction of ketene silyl acetals with aromatic or aliphatic imines is successfully carried out using tris(pentafluorophenyl)boron as a catalyst (0.2~10 mol%).
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHighly diastereoselective acetal cleavages using novel reagents prepared from organoaluminum and pentafluorophenolKazuaki Ishihara, Naoyuki Hanaki, Hisashi YamamotoCite this: J. Am. Chem. Soc. 1993, 115, 23, 10695–10704Publication Date (Print):November 1, 1993Publication History Published online1 May 2002Published inissue 1 November 1993https://pubs.acs.org/doi/10.1021/ja00076a030https://doi.org/10.1021/ja00076a030research-articleACS...
Tris(pentafluorophenyl)boron is an efficient Lewis acid catalyst for stereoselective rearrangement of epoxides to carbonyl compounds.
[reaction: see text] The condensation of allylic diols with unsymmetrical ketones proceeds high stereoselection to form 2,2-disubstituted 4-acyltetrahydrofurans when the alpha-substituents ketone differ substantially in size. A Prins-pinacol this type is central strategic step an enantioselective synthesis (-)-citreoviral.
Abstract The total synthesis of spermidine and spermine alkaloids, (S)-(+)-dihydroperiphylline (1), (±)-buchnerine (2), (±)-verbacine (3), (±)-verbaskine (4), (±)-verbascenine (5), is described. construction macrocyclic lactams has been efficiently accomplished by the metal-templated cyclization triamino esters tetraamino esters. It was also found that antimony(III) ethoxide useful as an intermolecular amidation catalyst.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHighly selective acetal cleavage using new organoaluminum reagentsKazuaki Ishihara, Naoyuki Hanaki, and Hisashi YamamotoCite this: J. Am. Chem. Soc. 1991, 113, 18, 7074–7075Publication Date (Print):August 1, 1991Publication History Published online1 May 2002Published inissue 1 August 1991https://pubs.acs.org/doi/10.1021/ja00018a075https://doi.org/10.1021/ja00018a075research-articleACS PublicationsRequest reuse permissionsArticle...
The reaction of acetals derived from (-)-(2R,4R)-2,4-pentanediol and ketones in the presence a catalytic amount aluminum pentafluorophenoxide produces reductively cleaved products with high diastereoselectivity. is new method for diastereoselective cleavage acetals: an intramolecular Meerwein-Ponndorf-Verley reductive Oppenauer oxidative on acetal template.
Highly regio- and stereo-selective annulation–elimination reactions of 1-cycloalkenyl 3-hydroxypropyl ethers in the presence triflic anhydride tertiary amines are described; bicyclic vinyl produced converted to 2-substituted δ-lactones, macrocyclic oxolactones hydroxy by ozonolysis stereoselective hydroboration.
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at glance that was extracted from about 100 leading journals. To access of an article which published elsewhere, please select “Full Text” option. The original trackable via the “References”