Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Toshio Takido"'
Publikováno v:
Synlett. 26:1875-1879
Novel route for the construction of chromans from benzylic and aliphatic alcohols in the presence of NaHSO4/SiO2 has been developed. In this reaction, substituted olefins are formed from benzylic and aliphatic alcohols and then converted to chromans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6bd027a632a0a3dc3e51a2c9f9afe3a
https://doi.org/10.1055/s-0034-1380863
https://doi.org/10.1055/s-0034-1380863
Autor:
Mamiko Hayakawa, Tadashi Aoyama, Erika Nakajima, Mitsuo Kodomari, Toshio Takido, Emi Mitsuyama, Sumire Ogawa, Taku Iwabuchi
Publikováno v:
Synlett. 25:2493-2497
A novel and efficient method for the activation of the C(sp 3 )–C(sp 3 ) bond was developed. The C(sp 3 )–C(sp 3 ) bond in 3-benzhydryl pentane-2,4-dione was easily cleaved in the presence of NaHSO 4 /SiO 2 to form benzhydryl cation which reacted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbebfeaeb1711722beb4b5af71af80f9
https://doi.org/10.1055/s-0034-1378650
https://doi.org/10.1055/s-0034-1378650
Publikováno v:
Synlett. 25:2365-2369
A simple and efficient method has been developed for the synthesis of α-functionalized amide from alcohols and nitriles in the presence of silica gel supported sodium hydrogen sulfate (NaHSO4/SiO2). For example, benzhydrol was allowed to react wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a846bec92bffb53199c307b104695131
https://doi.org/10.1055/s-0034-1378580
https://doi.org/10.1055/s-0034-1378580
Autor:
Saki Miyota, Mitsuo Kodomari, Toshio Takido, Mamiko Hayakawa, Takumi Yamamoto, Tadashi Aoyama
Publikováno v:
Synlett. 25:1571-1576
A simple and efficient method has been developed for the synthesis of 4H-chromenes from o-hydroxybenzylic alcohols and dicarbonyl compounds containing active methylene groups by using silica gel supported sodium bisulfate. Various dicarbonyl compound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::578dc4c78d4eab77da7ff2236010208e
https://doi.org/10.1055/s-0033-1339026
https://doi.org/10.1055/s-0033-1339026
Publikováno v:
Applied Catalysis B: Environmental. :344-353
To identify an effective catalyst for hydrodechlorination (HDC) reaction in an aqueous solvent, three types of modified Pt/SiO2 catalysts were prepared using the water-repellent organosilane reagents of butyldimethylchlorosilane (BDMS), dimethyloctyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8b023d0e3e4168aebaaa0201bc531a2
https://doi.org/10.1016/j.apcatb.2013.05.029
https://doi.org/10.1016/j.apcatb.2013.05.029
Publikováno v:
ChemInform. 47
Novel route for the construction of chromans from benzylic and aliphatic alcohols in the presence of NaHSO4/SiO2 has been developed. In this reaction, substituted olefins are formed from benzylic and aliphatic alcohols and then converted to chromans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::697da41c50983bdab68e762af6f7c757
https://doi.org/10.1002/chin.201601145
https://doi.org/10.1002/chin.201601145
Publikováno v:
Synthetic Communications. 43:553-566
A simple and efficient method for the conversion of carbonyl compounds to oxathioacetals and dithioacetals using SA/SiO2 as an acid catalyst has been achieved. SA/SiO2 is easily recovered from the reaction mixture and can be reused at least 15 times
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a3ab1ae6cab9c1b7311e3510751b1da
https://doi.org/10.1080/00397911.2011.604458
https://doi.org/10.1080/00397911.2011.604458
Publikováno v:
Tetrahedron. 68:7077-7081
Simple and efficient procedure for alkylation of aromatics from alcohols in the presence of NaHSO4/SiO2 was developed. Various triaryl methanes were obtained in good yields in short reaction time. For instance the reaction of mesitylene with benzhydr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d923f30ea9e1f84428b355ca1fdd8211
https://doi.org/10.1016/j.tet.2012.06.063
https://doi.org/10.1016/j.tet.2012.06.063
Publikováno v:
Synlett. 23:1397-1401
A convenient method for the preparation of [4-hydroxy-TEMPO + NaCl]/SiO2 was developed. And [4-hydroxy-TEMPO + NaCl]/SiO2 with Fe(NO3)3·9H2O was used for an aerobic oxidation of alcohols to carbonyls under mild reaction conditions. Alcohols were con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a680d840a24bd17998db55f6cfce9c69
https://doi.org/10.1055/s-0031-1290980
https://doi.org/10.1055/s-0031-1290980
Autor:
Yuki Fujii, Toshio Takido, Hiroshi Sakamaki, Tadashi Aoyama, Mitsuo Kodomari, Ken-ichi Itoh, Hiroaki Satoh
Publikováno v:
Tetrahedron Letters. 52:6892-6895
3-Benzoylisoxazoles were synthesized by the reaction of alkynes and benzoylnitromethane using silica gel-supported polyphosphoric acid (PPA/SiO2). This reaction provides a convenient, efficient, and reusable synthetic method of isoxazole derivatives.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a16e95afde9834626ff6a2b5eab2e829
https://doi.org/10.1016/j.tetlet.2011.10.038
https://doi.org/10.1016/j.tetlet.2011.10.038