Zobrazeno 1 - 10
of 220
pro vyhledávání: '"Masazumi Nakagawa"'
Autor:
Masazumi Nakagawa
Publikováno v:
Journal of Synthetic Organic Chemistry, Japan. 59:306-321
Autor:
Koji Yamamoto, Masazumi Nakagawa, Masaji Oda, Tsutomu Nakagawa, Masahiko Iyoda, Hiroyuki Higuchi, Hajime Ebe, Juro Ojima
Publikováno v:
Bulletin of the Chemical Society of Japan. 67:778-791
A bisdehydro[14]annuleno[c]furan and a tetrakisdehydro[14]annuleno[14]annulene have been synthesized; their properties and effects of annelation on annulene rings are discussed on the basis of 1H NMR and electronic spectra. Attempts to synthesize the
Autor:
Masaji Oda, H. Ebe, T. Nakagawa, Masahiko Iyoda, Koji Yamamoto, Jūro Ojima, Masazumi Nakagawa, Hiroyuki Higuchi
Publikováno v:
ChemInform. 25
Autor:
Masazumi Nakagawa
Publikováno v:
ChemInform. 32
Autor:
Masazumi NAKAGAWA
Publikováno v:
Journal of Synthetic Organic Chemistry, Japan. 49:584-591
Publikováno v:
Dyes and Pigments. 13:117-122
It has been found that the longest-wavelength of the absorption maxima (λ L ) in the electronic spectra of both the α,ω-diarylpoly-yne and polyene series varies linearly with the x th power of the number (n) of multiple bonds [λ L ∝ n x , the v
Publikováno v:
Bulletin of the Chemical Society of Japan. 51:3345-3350
Two position isomers of di-t-butyl-diphenyl-1,8-bisdehydro[14]annulene corresponding to o- and m-isomers of terphenyl have been prepared by a stepwise reaction sequence, and their physical properties were compared with those of 3,10-di-t-butyl-7,14-d
Publikováno v:
Tetrahedron Letters. 17:2623-2626
Publikováno v:
Tetrahedron Letters. 18:1737-1740
Publikováno v:
Bulletin of the Chemical Society of Japan. 49:305-309
The synthesis designed to lead to isomeric di-tert-butyldiphenyl-tetrakisdehydro[18]annulenes (VII and XIII) have been performed. It was found that the isomeric tetrakisdehydro[18]annulenes (VII and XIII) are identical in all respects, thus providing