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1.
論文 |
Somei, Masanori ; Hayashi, Hiroyuki ; Ohmoto, Shinobu
概要:
金沢大学大学院自然科学研究科生理活性物質科学<br />金沢大学薬学部<br />Indigo was converted to 2,2′-bisindole by the direct reduction with zinc in ace
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tic acid and acetic anhydride under argon or hydrogen atmosphere. Reduction with tin and iron afforded 3-acetoxy-2,2′-bisindole predominantly. Useful building blocks such as 1-acetyl-2,3-dihydro-, 3-acetoxy-3′-acetyl-, and 3-acetoxy-1,3′-diacetyl-2,2′-bisindoles were also produced depending on metal and reaction conditions.
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2.
論文 |
Ihara, Yoshinori ; Sakino, Tomomi ; Ishikawa, Mieko ; Koyata, Takanori
概要:
The solid-phase thermal reactions of trans-diaquabis(diamine)nickel(II) complexes (trans-[Ni(diamine)2(H2O)2]X2) were in
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vestigated by means of TG/DTA and DSC, and high-temperature electronic spectrometry, where the diamine is an optically active diamine such as (1S,2S)-1,2-diphenyl-1,2-ethanediamine or (S)-4-methyl-1,2-pentanediamine, and X is Cl−, Br−, or NO3−. Several complexes were peculiarly transformed into cis-[NiX2(diamine)2] upon thermal deaquation-anation, and then isomerized to trans-[NiX2(diamine)2] upon further heating. The results were in contrast to the reactions of the complexes with the corresponding racemic diamines which underwent a simple deaquation-anation, retaining an original trans configuration. The differences must come from a slight difference in the conformation of diamine ligands between trans-[Ni(R-diamine)(S-diamine)(H2O)2]X2 which is obtained for the rac-diamines and trans-[Ni(R- or S-diamine)2(H2O)2]X2 which is obtained for the optically active diamines.
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3.
論文 |
Ishibashi, Hiroyuki ; Higuchi, Masahiro ; Masuko, Hiromi ; Kodama, Kazuya ; Ikeda, Masazumi
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4.
その他 |
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5.
図書 |
by J. Mansfeld and D.T. Runia
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6.
論文 |
Hayashi, Hiroyuki ; Ohmoto, Shinobu ; Somei, Masanori
概要:
金沢大学大学院自然科学研究科生理活性物質科学<br />The first simple total syntheses of 6-cyano-5-methoxy- (1a) and -12-methylindolo[2,3-a]carba
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zolc (1b) are attained from indigo (2) in only five and six steps, respectively. Preparations of 5-hydroxy- (13), 5-bromoindolo[2,3-a]carbazole (14), and a novel spiro compound (7) are also included.
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7.
図書 |
Yuanfang Liu
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8.
図書 |
von Hartmut Aufderstraße ... [et al.]
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9.
図書 |
editors, Ronald G. Crystal ... [et al.]
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10.
図書 |
Massia Kaneman-Pougatch ... [et al.]
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