A porous chiral material of formula [M(L).sub.1.5(A)].sup.+X.sup. wherein M is a metal ion; L is a nitrogen-containing bidentate ligand; A is the anion of mandelic acid or a related acid; and X.sup. is an anion.

A porous chiral material of formula [M(L).sub.1.5(A)].sup.+X.sup. wherein M is a metal ion; L is a nitrogen-containing bidentate ligand; A is the anion of mandelic acid or a related acid; and X.sup. is an anion.

Disclosed are a method for preparing 2-(cyclohexenylidene) malonic acid derivatives and uses thereof. In this method, an olefin and a 2-substituted malonic acid derivative are used as starting materials to prepare the 2-(cyclohexenylidene) malonic acid derivative in the presence of a catalyst through cyclization reaction. This method has the following advantages: (1) the method can be very efficiently used for the synthesis of highly sterically-hindered 2-(2,6-disubstituted cyclohexenylidene) malonic acid derivatives; (2) the reaction yield is high, the reaction conditions are mild, and the wastes are less, favorable for industrial production. More importantly, the present invention extends the further use of 2-(cyclohexenylidene)malonic acid derivatives in organic synthesis, especially in the synthesis of 2-aryl malonic acid derivatives and their corresponding drugs such as Pinoxaden.

Disclosed are a method for preparing 2-(cyclohexenylidene) malonic acid derivatives and uses thereof. In this method, an olefin and a 2-substituted malonic acid derivative are used as starting materials to prepare the 2-(cyclohexenylidene) malonic acid derivative in the presence of a catalyst through cyclization reaction. This method has the following advantages: (1) the method can be very efficiently used for the synthesis of highly sterically-hindered 2-(2,6-disubstituted cyclohexenylidene) malonic acid derivatives; (2) the reaction yield is high, the reaction conditions are mild, and the wastes are less, favorable for industrial production. More importantly, the present invention extends the further use of 2-(cyclohexenylidene)malonic acid derivatives in organic synthesis, especially in the synthesis of 2-aryl malonic acid derivatives and their corresponding drugs such as Pinoxaden.

Disclosed are a method for preparing 2-(cyclohexenylidene) malonic acid derivatives and uses thereof. In this method, an olefin and a 2-substituted malonic acid derivative are used as starting materials to prepare the 2-(cyclohexenylidene) malonic acid derivative in the presence of a catalyst through cyclization reaction. This method has the following advantages: (1) the method can be very efficiently used for the synthesis of highly sterically-hindered 2-(2,6-disubstituted cyclohexenylidene) malonic acid derivatives; (2) the reaction yield is high, the reaction conditions are mild, and the wastes are less, favorable for industrial production. More importantly, the present invention extends the further use of 2-(cyclohexenylidene)malonic acid derivatives in organic synthesis, especially in the synthesis of 2-aryl malonic acid derivatives and their corresponding drugs such as Pinoxaden.

Process for the preparation of a compound of Formula (I):

##STR00001## the process comprising the reaction of a compound of Formula (II) with malononitrile in the presence of a base and a palladium catalyst,

##STR00002## wherein X, Y and Z, independently of each other, represent fluoro, chloro or C.sub.1-4alkyl; and L is a leaving group; with the proviso that 1 or 2 of X and Y are, independently of each other, fluoro or chloro.

Process for the preparation of a compound of Formula (I):

##STR00001## the process comprising the reaction of a compound of Formula (II) with malononitrile in the presence of a base and a palladium catalyst,

##STR00002## wherein X, Y and Z, independently of each other, represent fluoro, chloro or C.sub.1-4alkyl; and L is a leaving group; with the proviso that 1 or 2 of X and Y are, independently of each other, fluoro or chloro.

Process for the preparation of a compound of Formula (I):

##STR00001## the process comprising the reaction of a compound of Formula (II) with malononitrile in the presence of a base and a palladium catalyst,

##STR00002## wherein X, Y and Z, independently of each other, represent fluoro, chloro or C.sub.1-4alkyl; and L is a leaving group; with the proviso that 1 or 2 of X and Y are, independently of each other, fluoro or chloro.

Process for the preparation of a compound of Formula (I), the process comprising the reaction of a compound of Formula (II) with malononitrile in the presence of a base and a palladium catalyst, Formula (II) wherein X, Y and Z, independently of each other, represent fluoro, chloro or C.sub.1-4alkyl; and L is a leaving group; with the proviso that 1 or 2 of X and Y are, independently of each other, fluoro or chloro. ##STR00001##

Process for the preparation of a compound of Formula (I), the process comprising the reaction of a compound of Formula (II) with malononitrile in the presence of a base and a palladium catalyst, Formula (II) wherein X, Y and Z, independently of each other, represent fluoro, chloro or C.sub.1-4alkyl; and L is a leaving group; with the proviso that 1 or 2 of X and Y are, independently of each other, fluoro or chloro. ##STR00001##