✦ LIBER ✦

Distinct difference of chemical behaviors between 5H,7H-dibenzo[b,g][1,5]dithiocin 12-oxide and thiazocine S-oxide

✍ Scribed by Katsuo Ohkata; Keiji Okada; Kin-ya Akiba

Book ID: 104222206
Publisher: Elsevier Science
Year: 1985
Tongue: French
Weight: 218 KB
Volume: 26
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)88938-8

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Conformational features and chemical beh

Conformational features and chemical behavior of 5H, 7H-dibenzo[B,g][1,5] dithiocin oxides: 1,5-Oxygen shift via a dithiodication intermediate

✍ Katsuo Ohkata; Keiji Okada; Kin-Ya Akiba 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 769 KB

## Abstract Some 5H,7H‐dibenzo[b,g][1,5]dithiocin oxides (4–8) and their related compounds 9–13 were prepared and the assignment of the most favorable conformation was carried out on the basis of the characteristic ^1^H NMR spectral data. Only a single conformer (BC: boatchair form) exists for 4,5,

A new type of σ-sulfurane with a transan

A new type of σ-sulfurane with a transannular S⋯N bond: structures of S-substituted N-methyl-6,7-dihydro-5H,12H+-dibenzo[b,g][1,5]thiazocinium salts and N-methyl-6,7-dihydro-5H-dibenzo[b,g][1,5]thiazocine S-oxide

✍ Iwasaki, F. ;Akiba, K.-Y. 📂 Article 📅 1985 🏛 International Union of Crystallography 🌐 English ⚖ 896 KB

Transannular interaction between seleniu

Transannular interaction between selenium and sulfur atoms in 5H,7H-dibenzo[b,g][1,5]selenathiocin: Formation of a new heteroatom dication [>Se+−+S<]

✍ Hisashi Fujihara; Hisatomo Mima; Jer-Jye Chiu; Naomichi Furukawa 📂 Article 📅 1990 🏛 Elsevier Science 🌐 French ⚖ 288 KB

NMR and EPR structural delineation of co

NMR and EPR structural delineation of copper(ii) complexes formed by kanamycin A in waterElectronic supplementary information (ESI) available: Table S1: 1H chemical shifts of KanA at different pH values; Table S2: Rnsel, Rsel, Rbsel, ? and ?R of H2 protons of KanA at different pH values; Table S3: EPR magnetic parameters of Cu(ii)?KanA complexes at pH 7.4 and 12.0. Fig. S1: 1H NMR spectrum of KanA at 298 K and pH 5.5. See http://www.rsc.org/suppdata/dt/b3/b313060f/

✍ D?Amelio, Nicola; Gaggelli, Elena; Gaggelli, Nicola; Molteni, Elena; Baratto, Ma 📂 Article 📅 2004 🏛 Royal Society of Chemistry 🌐 English ⚖ 299 KB

Electrophilic and oxidative chemistry of

Electrophilic and oxidative chemistry of pyrene and its non-alternant isomers: theoretical (DFT, GIAO-NMR, NICS) study of protonation carbocations and oxidation dications from pyrene, azupyrene (dicyclopenta[ef,kl]heptalene) and dicyclohepta[ed,gh]pentaleneElectronic supplementary information (ESI) available: Table S1: Electronic energies (E), zero point energies (ZPE) and Gibbs free energies (G) obtained from DFT calculations for the studied molecules and cations at B3LYP/6-31G(d) level. Figs. S1, S8 and S10 and Tables S2?S14: Optimized structures and Cartesian coordinates for 1, 1aH+, 1bH22+, 12+, 2, 2aH+, 2aH22+, 22+, 3, 3cH+, 3eH22+ and 32+. Figs. S2, S3 and S4: Computed 13C NMR chemical shifts and NPA-derived charges for 1aH+, 122+ and 12+. Fig. S5: Experimental 13C NMR chemical shifts for 1aH+ and 12+. Figs. S6, S7, and S12: HOMO?LUMO forms in the oxidation dications. Figs. S9 and S11: Bond-lengths in X-ray derived and computed structures for 2 and 3. See http://www.rsc.org/suppdata/ob/b4/b405009f/

✍ Okazaki, Takao; Laali, Kenneth K. 📂 Article 📅 2004 🏛 Royal Society of Chemistry 🌐 English ⚖ 409 KB