𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Structures and photochromic properties of substituted spiroindolinonaphthoxazines

✍ Scribed by S. M. Aldoshin; I. I. Chuev; O. S. Filipenko; A. N. Utenyshev; V. Lokshin; P. Laregenie; A. Samat; R. Guglielmetti


Publisher
Springer
Year
1998
Tongue
English
Weight
666 KB
Volume
47
Category
Article
ISSN
1573-9171

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


Two-dimensional NMR analysis of selected
✍ V. Malatesta; P. Allegrini; C. Neri; L. Lanzini πŸ“‚ Article πŸ“… 1992 πŸ› John Wiley and Sons 🌐 English βš– 321 KB

## Abstract ^1^H and ^13^C studies of a series of 19 photochromic spiroindolinonaphthoxazines were carried out by two‐dimensional NMR methods. The assignments of the ^1^H resonances were made by 2D homonuclear shift correlation (COSY) and the 2D nuclear Overhauser effect (NOESY). Complete ^13^C che

Photochromic properties of 4β€²-amino-subs
✍ Ryoka Matsushima; Hirotaka Mizuno; Hideki Itoh πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 492 KB

%bstract 2-Hydroxychalcones with 4'-amino substituents undergo facile photochemical conversion into highly coloured flavylium ions on irradiation ,vith 365--436 nm light in aqueous ethanol solution in the pH region 4-6. The coloured solutions are substantially stable against prolonged rradiation wit