𝔖 Bobbio Scriptorium
✦   LIBER   ✦

77Se NMR study of some organic selenium compounds formed in the selenium dioxide oxidation of ketones

✍ Scribed by Tarja Laitalainen; Erkki Rahkamaa

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
230 KB
Volume
20
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

^77^Se NMR chemical shifts and ^1^J(SeC) coupling constants were measured for nine organic selenium compounds: 4,5,6,7‐tetrahydro‐,4′,4′,6,6‐tetramethylspiro[1,3‐benzoxaselenole‐2,1′‐cyclohexane]‐2′,4,6′‐trione and closely related derivatives, bis(2‐hydroxy‐4,4,6,6‐tetramethyl‐3‐oxo‐1‐cyclohexenyl) selenide and derivatives, and 1,5,5‐trimethyl‐7‐selenabicyclo[2.2.1]heptane‐2,3‐dione. The chemicalshifts ranged from −107 to 595 ppm from the external dimethyl selenide standard. The bridged selenabicyclic compound showed a small coupling constant (42 Hz).

📜 SIMILAR VOLUMES

Toxicity of selenium-cystine and some ot
Toxicity of selenium-cystine and some other organic selenium compounds**The author wishes to thank Dr. Arne Fredga of Uppsala University, Uppsala, Sweden, for the generous supply of selenium-cystine and other organic selenium compounds, and Dr. C. A. Elvehjem, Dept. of Agricultural Biochemistry, University of Wisconsin, for courtesies and helpful suggestions during the course of the work. The work reported herein was done in the laboratories of the Department of Agricultural Biochemistry, University of Wisconsin, during a leave of absence from the South Dakota State College.
✍ Moxon, Alvin L. 📂 Article 📅 1940 🏛 Elsevier ⚖ 274 KB
Low-temperature 1H, 13C, 77Se, and 125Te
Low-temperature 1H, 13C, 77Se, and 125Te NMR studies on the apical-apical ligand exchange via the hypervalent tellurium and selenium ate complexes [10-M-3(C3); M = Se, Te] in the reactions of diaryl tellurides and selenides with aryllithium reagents
✍ Yutaka Masutomi; Naomichi Furukawa; Tomoki Erata 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 742 KB

Pentafluorophenyl phenyl telluride (1) and 3,5-dichloro-2,4,6-trifluorophenyl phenyl telluride (2) react with pentafluorophenyllithium or 3,5-dichloro-2,4,6trifluorophenyllithium in THF at low temperatures to form the corresponding tellurium ate complexes (A) and (B) as sole intermediates in the lig