𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A convenient method for conversion of the Z-isomer to the E-isomer from a mixture containing both isomers of fulgides

✍ Scribed by Abdullah Mohamed Asiri

Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
68 KB
Volume
43
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis

A new method for the conversion of the Z-isomer of unsymmetrical substituted bis-methylenesuccinic anhydrides, 'fulgides', to their geometrical E-isomers was achieved by heating the Z-isomer under reflux or a mixture of both isomers in pyridine to give the E-isomer in near quantitative yield.

πŸ“œ SIMILAR VOLUMES

Photochromic fulgides: Transformation of
Photochromic fulgides: Transformation of the non-photochromic (Z)-isomer of a fulgide into a highly photochromic (E)-isomer via structural modification involving enhanced conjugation
✍ Zhiyuan Sun; Ramachandra S. Hosmane; Maher Tadros πŸ“‚ Article πŸ“… 2000 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 241 KB πŸ‘ 1 views

## Abstract The non‐photochromic fulgide (1‐Z) has been successfully converted into the highly photochromic (**3‐Z**) analogue. A dicyanomethylene group was introduced at the 5‐position of **1‐Z** in order to enhance the latter's conjugation properties that would facilitate the photochemical __**Zβ†’