Cyclically substituted fulvalenophanes

US4298751A · kind A · utility

Assignee

• BASF SE

Inventors

• Heinz A. Staab · Heidelberg, DE
• Joachim Ippen · Leverkusen, DE

Key dates

• Filing date: Aug 8, 1980
• Grant date: Nov 3, 1981
• Expiry date: Aug 8, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D339/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Cyclically substituted fulvalenophanes of the formula ##STR1## where X is S, Se or Te, R is H or lower alkyl, A is --(CH.sub.2).sub.n --and Z is a radical of the formula ##STR2## a p-phenylene radical or a quinodimethane radical of the formula ##STR3## where the radicals R.sup.2 and R.sup.3 are halogen, carboxylic acid ester groups or cyano and R.sup.3 may also be hydrogen, and the quinodimethane ring may be substituted by halogen, nitro or cyano.