A compound having the formula (I): ##STR00001##
is disclosed. A method of preparing the compound of formula (I) is also disclosed.

A compound having the formula (I): ##STR00001##
is disclosed. A method of preparing the compound of formula (I) is also disclosed.

The invention relates to novel compounds which are especially suitable for use as writing monomers in holographic media. The invention further provides a photopolymer and a holographic medium comprising the inventive compounds, and an optical display, a security document and a holographic optical element comprising an inventive holographic medium.

The invention relates to novel compounds which are especially suitable for use as writing monomers in holographic media. The invention further provides a photopolymer and a holographic medium comprising the inventive compounds, and an optical display, a security document and a holographic optical element comprising an inventive holographic medium.

The present invention relates to metallic zinc cluster compounds which are suitable as catalysts in the reaction of amines with dialkyl carbonates to produce carbamates. The invention is also directed towards a method for the alkoxycarbonylation of amines. The cluster compound has a general formula which may be written as [M(O.sub.2CR).sub.2].sub.x.[MO].sub.y.[H.sub.2O].sub.z, wherein M is Zn, R is an unsubstituted or substituted aromatic, cycloaliphatic, linear aliphatic, or other organic rest, x is 1, y is x is 1, y is 0.03 to 26.0 and z is >0.00 to 17.0.

The present invention relates to metallic zinc cluster compounds which are suitable as catalysts in the reaction of amines with dialkyl carbonates to produce carbamates. The invention is also directed towards a method for the alkoxycarbonylation of amines. The cluster compound has a general formula which may be written as [M(O.sub.2CR).sub.2].sub.x.[MO].sub.y.[H.sub.2O].sub.z, wherein M is Zn, R is an unsubstituted or substituted aromatic, cycloaliphatic, linear aliphatic, or other organic rest, x is 1, y is x is 1, y is 0.03 to 26.0 and z is >0.00 to 17.0.

A reaction product containing amido amine groups, comprising one or more species of the general formula (I)

(R.sup.1X).sub.pZ.sup.1(XH).sub.y (I)

where p+y=w and w is an integer from 1 to 10, p is an integer from 1 to 10, y is an integer from 0 to 9, and X is independently O, NH and/or NZ.sup.2 and XH is independently a hydroxyl group OH, a primary amino group NH2 and/or a secondary amino group NHZ.sup.2 where Z.sup.2 is independently a branched or unbranched, saturated or unsaturated organic radical G(U)a where U is independently a hydroxyl group, a primary amino group or a secondary amino group and a is an integer from 0 to 9, where p+y+as 10, and G is a branched or unbranched, saturated or unsaturated organic radical, the p R.sup.1 radicals are independently a radical of the general formula (II)

YOCONHR.sup.2NHCO (II)

in which the p Y radicals are independently a branched or unbranched, saturated or unsaturated organic radical which has 1 to 1000 carbon atoms and does not contain any hydroxyl groups, any primary amino groups or any secondary amino groups, the p R.sup.2 radicals are independently a branched or unbranched, saturated or unsaturated organic radical having 6 to 20 carbon atoms, Z.sup.1 is a branched or unbranched, saturated or unsaturated organic radical containing at least two carbon atoms, having at least one amide group and at least one tertiary amino group.