Synthesis of 1,8-, 1,6- and 3,6-dichloro-9H-thioxanthen-9-ones

Synthesis of benzothiopyrano[4,3,2‐de]quinoline

Synthesis of 1, 5- and 1, 7-dichloro-9H-thioxanthen-9-ones

Provided are: a base amplifier that can be used in the cross-linking reaction of an epoxy compound or the like, that is capable of generating a new base as a result of the presence of a base, that is highly soluble with respect to organic solvents, and that can efficiently promote a base proliferation reaction when added to a base-reactive compound as a result of having higher heat resistance than conventional base amplifiers; and a base-reactive resin composition containing the base amplifier. The present invention relates to a thioxanthene compound that is represented by formula (A), a base amplifier, and a base-reactive resin composition that contains the base amplifier.

Thioxanthene compound, base amplifier, and base-reactive resin composition containing base amplifier

Das durch Reduktion von Xanthen-9-essigsaureathylester (I) mit LiAlH4 erhaltliche 9-(2-Hydroxyathyl)-xanthen (II) ergibt mit N,N-Diathylcarbamidsaurechlorid in 54%iger Ausbeute den Ester (III).

Masao Arimoto

Papers

[Synthesis of xanthene derivatives having antispasmodic action. 8. Derivatives of 1-chlorothioxanthene].

[Synthesis of xanthene derivatives having antispasmodic action. VI. Derivatives of xanthene and thioxanthene-9-malonic acids]