6533b834fe1ef96bd129d4a5

RESEARCH PRODUCT

Kronenethersubstituierte 1,4-Distyrylbenzole und ihre Komplexierung mit Alkalipikraten

Dirk SchwöppeHerbert Meier

subject

chemistry.chemical_classificationchemistry.chemical_compoundchemistryOrganic chemistryAlkali metalMedicinal chemistryCrown CompoundsCrown etherDichloromethane

description

Crown Ether Substituted 1,4-Distyrylbenzenes and their Complexation with Alkali Picrates The 1,4-distyrylbenzenes 8 and 9, which contain two crown ether units, each, were prepared by Wittig—Horner reactions. Their complexation tendencies with alkali picrates (Li—Cs) in water/dichloromethane were investigated. Potas sium ions give the strongest complexes. Generally monomo-lecular 1:1-complexes are formed; however, [K-8] + [Pik]—, [K-9]+ [Pik]— and [Rb-8] + [Pik]— generate aggregates, for which a stairway structure is proposed.

https://doi.org/10.1002/1521-3897(200006)342:5<459::aid-prac459>3.0.co;2-s