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US 6,121,442 AGranted
1,2-dialkinylated compounds
AssigneeUniversity of Heildelberg
InventorsRudiger Faust, Christian Weber
Life of this patent
Estimating the term…
Abstract
The present invention is relative to 1,2-dialkynylated compounds, especially dialkynyl-1,2-diones, a method of their production and their use as synthetic structural units to produce NIR dyes, pigments, thermostable polymers, charge-transfer complexes, heterocycles or pharmaceuticals.
Claims3
The compound with the general formula comprising:
- ##STR18## wherein R.sup.1 and R.sup.2 can be identical or different and represent a hydrogen atom, a halogen atom;
- a straight-chain or branched-chain alkyl group with 1 to 6 carbon atoms;
- a cycloalkyl group with 3 to 7 carbon atoms which can comprise one or more heteroatoms;
- a substituted or unsubstituted aryl group which can comprise one or more heteroatoms;
- a mono-, di-, or trialkylsilyl group with 1 to 6 carbon atoms independently of each other in each instance in the straight-chain or branched-chain alkyl group;
- a mono-, di-, or triarylsilyl group with substituted or unsubstituted aryl gropus independently of each other in each instance;
- an aralkyl group;
- an alkenyl group;
- an alkynyl group;
- an alkylthio group;
- an arylthio group;
- a trifluoromethyl-, ester-, carboxyl-, sulfonyl-, cyan-, alcohol-, aldehyde-, amino-, or nitro- group;
- or R.sup.1 and R.sup.2 form a ring together with 4 to 8 substituted or unsubstituted CH.sub.2 groups, at least one CH.sub.2 group of which can be replaced by an oxygen atom, a sulfur atom, or an NR.sup.3 group;
- and
- wherein R.sup.3 represents a hydrogen atom;
- a straight-chain or branched chain alkyl group with 1 to 6 carbon atoms;
- a cycloalkyl group with 3 to 7 carbon atoms which can comprise one or more heteroatoms;
- a mono-, di-, or trialkylsilyl group with 1 to 6 carbon atoms independently of each other in each instance in the straight-chain or branched-chain alkyl group;
- a mono-, di-, or triarylsilyl group with aryl groups substituted independently of each other in each instance or unsubstituted;
- a straight-chain or branched-chain aliphatic, unsaturated, alicyclic, aromatic or aromatic heterocyclic group;
- or two R.sup.3 groups represent a single bond or ring together with at least one substituted or unsubstituted CH.sub.2 group.
18 more elements
Dependencies are inferred from the claim text.