Zobrazeno 1 - 10
of 426
pro vyhledávání: '"Juzo Nakayama"'
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 185:1131-1141
3,4-Di-tert-butyl-2,5-dimethylthiophene 1-oxide (2) reacted with maleic anhydride to give the Diels–Alder adduct quantitatively. Oxidation of the sulfinyl group of the adduct and the thermal extrusion of sulfur dioxide from the resulting sulfone fu
Autor:
Juzo Nakayama
Publikováno v:
Journal of Sulfur Chemistry. 30:393-468
The author has been concerned with the organic chemistry of sulfur for more than thirty years, during which he has written 272 original papers and 22 other scientific articles. These are summarized on the occasion of his retirement from Saitama Unive
Publikováno v:
Journal of Sulfur Chemistry. 30:270-277
Reductive cleavage of the disulfide bond of 2,3-di-tert-butyl-5,6,7-trithiabicyclo[2.2.1]hept-2-ene 7-exoxide with lithium triethylborohydride and treatment of the resulting dithiolate with N, N′-carbonyldiimidazole in situ furnished 6,7-di-tert-bu
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 184:1175-1183
3,4-Di-tert-butylthiophene 1-oxide underwent 1,3-dipolar cycloadditions with 1,3-dipoles such as nitrile oxide, diazomethane, nitrile imide, nitrone, and azomethine ylide at its syn-π -face with respect to the S═O bond.
Publikováno v:
Heteroatom Chemistry. 20:12-18
On leaving 4,4′-dithiodimorpholine 6 powder undisturbed at room temperature over 10 years, it led to the formation of 4,4′-tetrathiodimorpholine 7. Reactions of 2′-adamantylidene-9-benzonorbornenyidene 1 with 6, 7, and 4,4′-thiodimorpholine 8
Publikováno v:
Heteroatom Chemistry. 20:29-34
syn-9,9′-Bibenzonorbornenylidene sulfoxide 8b underwent pinacol-type rearrangement to form 9, together with a mixture of thiiranes 4a and 4b by reaction with TMSOTf in CH2Cl2 at room temperature. The rearrangement of anti-sulfoxide 8a proceeded mor
Publikováno v:
Journal of Sulfur Chemistry. 29:1-7
Treatment of 5,6-di-tert-butyl-2,3,7-trithiabicylo-5-ene 7-endoxide with trimethylsilyl trifluoromethanesulfonate at room temperature resulted in the rearrangement of tert-butyl group to furnish 4,6-di-tert-butyl-2,3,7-trithiabicylo-5-ene 7-endoxide
Publikováno v:
Tetrahedron Letters. 48:8116-8119
The reaction of dilithiated N,N′-dimethyl-1,2-diphenylethylenediamine with disulfur dichloride (S2Cl2) gave a thiosulfinyl compound (R2N)2S S, 2,5-dimethyl-3,4-diphenyl-1,2,5-thiadiazolidine 1-sulfide, whereas the treatment of dilithiated N,N′-bi
Autor:
Kei Unoura, Yusuke Kubota, Genta Maruyama, Takashi Fujihara, Juzo Nakayama, Toshiyuki Takayanagi, Atsushi Tanemura, Kenta Takahashi, Masaru Sato
Publikováno v:
European Journal of Inorganic Chemistry. 2006:4577-4588
The binuclear ruthenocene derivatives bridged by thiophene, 3,4-ethylenedioxythiophene, 2,2′-bithiophene, thieno[3,2-b]thiophene, or 3,6-dimethylthieno[3,2-b]thiophene were prepared by the Suzuki coupling of 2-ruthenocenyl-4,5-tetramethyl-1,3-dioxa
Publikováno v:
Tetrahedron. 61:6693-6699
A 3-monosubstituted dithiirane 1-oxide, 3-(9-triptycyl)dithiirane 1-oxide, was prepared for the first time, by the reaction of (9-triptycyl)diazomethane and S8O. The dithiirane 1-oxide was obtained as cis- and trans-isomers, and the structure of the