摘要:
Disclosed is a novel compound having activity as an ionophore for ion transport, which is a monoester or monoamide of 1,3,5-trimethyl-1,3,5-cyclohexane tricarboxylic acid, i.e. Kemp's triacid or the stereoisomer thereof, the group R in the ester group --COOR or in the amide group --CONHR being an aralkyl group or aryloxyalkyl group having 7 to 20 carbon atoms. The monoester and monoamide derivatives can be synthesized from anhydride of Kemp's triacid by subjecting the anhydride to a ring-opening esterification or amidation reaction with an alcohol or amine. On the other hand, both of the stereoisomers can be obtained by the dehydrohalogenation reaction of 1,3,5-trimethyl-1,3,5-cyclohexane tricarboxylic acid anhydride acid halide with an alcohol or amine followed by the ring-opening hydrolysis reaction on the anhydride group.
摘要:
A diamine derivative expressed by the following general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 stand, independently from each other, for a hydrogen atom, an alkyl group, an aralkyl group or an aryl group. The diamide derivative is useful as an ionophore which can selectively transport cupric ions through liquid membranes.
摘要:
A ruthenium (II) complex having a dipyridophenazine or tetrapyridophenazine ligand and being represented by the formula (1) or (2) shown in the specification. Upon absorption of light, the complex emits fluorescence for a longer life time in a protic solvent as compared with known analogous compounds.
摘要:
A method of selectively separating lead ions from metal ions-containing aqueous liquid by contact with a solution containing a polyether derivative dissolved in a water-insoluble organic solvent and serving as an ionophore or carrier for lead ions. The polyether derivative is a compound expressed by the general formula: ##STR1## wherein R.sub.1 and R.sub.2 stand independently from each other for a hydrogen atom or an alkyl group and n is an integer of 2 or 3.
摘要:
A bisquinolinol or bisbenzoquinolinol compound is disclosed which has the formula CH.sub.2 .dbd.C(CH--R.sup.1).sub.2 wherein R.sup.1 represents a 8-hydroxy-7-quinolyl group which may have an alkyl group at the 2-position thereof or a 10-hydroxy-9-benzoquinolyl group which may have an alkyl group at the 2-position thereof. The bisquinolinol and bisbenzoquinolinol compounds may be obtained by thermal rearrangement of a bisquinoline or bisbenzoquinoline compound of the formula CH.sub.2 .dbd.C(CH.sub.2 --O--R.sup.2).sub.2 wherein R.sup.2 represents a 8-quinolyl group which may have an alkyl group at the 2-position thereof or a 10-benzoquinolyl group which may have an alkyl group at the 2-position thereof. The bisquinolinol and bisbenzoquinolinol compounds are useful as an extractant for metal ions.