Aniline → HCID 86736420, compound

Participants

Reaction Steps

(E)-α-(3,4,5-trimethoxyphenyl) ethylideneisopropylidene succinic anhydride (4 parts), prepared as in Example 3, in toluene (40 parts by volume), and aniline (1 part) were heated (12 hours) at 70°. Petrol was added and the liberated succinamic acid separated. The dry acid (1.8 parts) was dissolved in acetyl chloride (40 parts by volume) boiled for 2 hours and the solvent removed. Crystallisation of the product from a toluene/petrol mixture gave (E)-α-(3,4,5-trimethoxyphenyl) ethylideneisopropylidene-N-phenylsuccinimide as pale yellow needles, melting point 169.5°. The compound shows similar photochromic properties to the corresponding (E)-anhydride.

Provenance & Evidence