Zobrazeno 1 - 10
of 131
pro vyhledávání: '"Takaaki Horaguchi"'
Publikováno v:
Journal of Applied Polymer Science. 127:4524-4536
Oxidative coupling polymerization of naphthalene, anthracene, and pyrene with FeCl3 in nitrobenzene under nitrogen gave polynaphthalene (PNP), polyanthracene (PAT), and polypyrene (PPR) in good yields, respectively. PNP, PAT, and PPR were transformed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb08a7107eb56230fe4808a39a68425d
https://doi.org/10.1002/app.38045
https://doi.org/10.1002/app.38045
Publikováno v:
Polymer Bulletin. 68:705-719
In the presence of 5 wt% of p-toluenesulfonic acid (TsOH), the mixture (TPA/PR = 1.5/1.0) of pyrene (PR) and terephthalaldehyde (TPA) was heated at 160 °C for 1.5 h under nitrogen to give the condensed polynuclear aromatic (COPNA) resin. It was tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f651596f9ffd64bb1fdf3f6c8e870ff9
https://doi.org/10.1007/s00289-011-0574-0
https://doi.org/10.1007/s00289-011-0574-0
Publikováno v:
Journal of Heterocyclic Chemistry. 48:1095-1102
The Fischer indole synthesis was carried out using microwaves instead of conventional heating procedures. When the mixture of phenylhydrazine, cyclohexanone and zinc chloride was irradiated at 600 W for 3 min, 76% of 1,2,3,4-tetrahydrocarbazole was o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ceae772da7f077a06d81bea1d3f7148
https://doi.org/10.1002/jhet.689
https://doi.org/10.1002/jhet.689
Synthesis of the sulfonated condensed polynuclear aromatic (S-COPNA) resins as strong protonic acids
Publikováno v:
Tetrahedron. 67:1314-1319
The mixture (PXG/PR=1.00) of pyrene (PR) and p-xylylene glycol (1,4-benzenedimethanol) (PXG) in the presence of 5 wt % of p-toluenesulfonic acid (TsOH) was heated at 140 °C for 45 min under nitrogen to give the highly viscous condensed polynuclear a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c20f70511bda58059cad3052549f64d
https://doi.org/10.1016/j.tet.2010.11.077
https://doi.org/10.1016/j.tet.2010.11.077
Publikováno v:
Tetrahedron. 66:2881-2888
Various aliphatic hydrocarbons and the side chains of aromatic hydrocarbons were chlorinated in subcritical carbon tetrachloride. Chlorination of aromatic compounds including 1,4-disubstituted benzenes was investigated. Ketones and sulfones were stab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b08be4d8df8150c4c3502f7d263eed31
https://doi.org/10.1016/j.tet.2010.02.021
https://doi.org/10.1016/j.tet.2010.02.021
Autor:
Takaaki Horaguchi, Toshikatsu Muramatsu, Masahiro Kosaka, Evelyn Cuevas Creencia, Tomohiro Iizuka, Masashi Kobayashi
Publikováno v:
Journal of Heterocyclic Chemistry. 46:1309-1317
The Cadogan reaction, a widely accepted route for the synthesis of nitrogen containing heterocycles, is modified by using microwave radiation as the source of heat instead of the conventional heating by reflux in a nitrogen atmosphere for several hou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b52dafee19e8656a92802269ae7f490
https://doi.org/10.1002/jhet.267
https://doi.org/10.1002/jhet.267
Publikováno v:
Journal of Heterocyclic Chemistry. 45:837-843
Thermal cyclization reactions of N-alkyl-2-benzylaniline 1a-d and N-alkyl-N′-phenyl-o-phenylenediamine 2a-b were carried out expecting to get seven-membered heterocyclic compounds. However, the results show that aside from the formation of the norm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::095fc60cef85c5bebc8e0a2eced28ee7
https://doi.org/10.1002/jhet.5570450331
https://doi.org/10.1002/jhet.5570450331
Publikováno v:
Journal of Heterocyclic Chemistry. 43:1441-1446
Thermal cyclization reactions were examined by passing vapors of N-alkylated 2-aminobiphenyls 1a-c and 2 over calcium oxide at 450-600°C under nitrogen carrier gas. The reactions yielded 9-methylcarbazole 3, carbazole 4, phenanthridine 5 and phenant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f11881284c78e2ebe4435cc0334ce380
https://doi.org/10.1002/jhet.5570430605
https://doi.org/10.1002/jhet.5570430605
Publikováno v:
Tetrahedron. 62:3739-3751
The title compound 1 was obtained by the reaction of alcohol 18 and triethyl orthoformate catalyzed by aluminum chloride followed by catalytic hydrogenation in good yield. Similarly, compounds 1 and 3 were obtained by intramolecular cyclization of MO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88c312108695ca8a0d3048f6a7c26dbc
https://doi.org/10.1016/j.tet.2006.01.079
https://doi.org/10.1016/j.tet.2006.01.079
Publikováno v:
Synthetic Communications. 35:867-872
Aldehydes and ketones were treated with NaBH4 in polyethylene glycol dimethyl ethers (PEGDME) to give the corresponding alcohols in good yields. Chemoselective reduction of aldehydes in the presence of ketones was described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33bfed1662d7c6fa9027944bb3c0c4c9
https://doi.org/10.1081/scc-200051041
https://doi.org/10.1081/scc-200051041