A substituted alkenylbenzene compound of formula (4):

##STR00001##

wherein X.sup.1 is selected from the group consisting of a halogen atom, SF.sub.5, C.sub.1-C.sub.6haloalkyl, hydroxy C.sub.1-C.sub.6haloalkyl, C.sub.1-C.sub.6alkoxy C.sub.1-C.sub.6haloalkyl, C.sub.3-C.sub.8halocycloalkyl, C.sub.1-C.sub.6haloalkoxy, C.sub.1-C.sub.3haloalkoxy C.sub.1-C.sub.3haloalkoxy, C.sub.1-C.sub.6haloalkylthio, C.sub.1-C.sub.6haloalkylsulfinyl and C.sub.1-C.sub.6haloalkylsulfonyl; X.sup.3 is selected from the group consisting of a hydrogen atom, halogen atom, cyano, nitro, C.sub.1-C.sub.6alkyl, C.sub.1-C.sub.6haloalkyl, C.sub.1-C.sub.6alkoxy and C.sub.1-C.sub.6alkylthio; X.sup.4 is selected from the group consisting of a hydrogen atom, halogen atom, cyano, C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy and C.sub.1-C.sub.4haloalkoxy; R.sup.3 is C(R.sup.3a)(R.sup.3b)R.sup.3c, where R.sup.3a and R.sup.3b independently of each other are a halogen atom, or R.sup.3a and R.sup.3b together form 3- to 6-membered ring together with the carbon atom bonding them by forming a C.sub.2-C.sub.5haloalkylene chain, and R.sup.3c is selected from the group consisting of a hydrogen atom, halogen atom, C.sub.1-C.sub.5alkyl, C.sub.1-C.sub.5haloalkyl, C.sub.1-C.sub.4haloalkoxy and C.sub.1-C.sub.4haloalkylthio, with a proviso that in case where X.sup.1 is a fluorine atom, chlorine atom or trifluoromethyl, and both X.sup.2 and X.sup.3 are a hydrogen atom, in case where both X.sup.1 and X.sup.2 are fluorine atom and X.sup.3 is a hydrogen atom, and in case where both X.sup.1 and X.sup.2 are trifluoromethyl and X.sup.3 is a hydrogen atom, R.sup.3c is a hydrogen atom, chlorine atom, bromine atom, iodine atom, C.sub.1-C.sub.5alkyl, C.sub.1-C.sub.5haloalkyl, C.sub.1-C.sub.4haloalkoxy or C.sub.1-C.sub.4haloalkylthio.

A substituted alkenylbenzene compound of formula (4):

##STR00001##

wherein X.sup.1 is selected from the group consisting of a halogen atom, SF.sub.5, C.sub.1-C.sub.6haloalkyl, hydroxy C.sub.1-C.sub.6haloalkyl, C.sub.1-C.sub.6alkoxy C.sub.1-C.sub.6haloalkyl, C.sub.3-C.sub.8halocycloalkyl, C.sub.1-C.sub.6haloalkoxy, C.sub.1-C.sub.3haloalkoxy C.sub.1-C.sub.3haloalkoxy, C.sub.1-C.sub.6haloalkylthio, C.sub.1-C.sub.6haloalkylsulfinyl and C.sub.1-C.sub.6haloalkylsulfonyl; X.sup.3 is selected from the group consisting of a hydrogen atom, halogen atom, cyano, nitro, C.sub.1-C.sub.6alkyl, C.sub.1-C.sub.6haloalkyl, C.sub.1-C.sub.6alkoxy and C.sub.1-C.sub.6alkylthio; X.sup.4 is selected from the group consisting of a hydrogen atom, halogen atom, cyano, C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy and C.sub.1-C.sub.4haloalkoxy; R.sup.3 is C(R.sup.3a)(R.sup.3b)R.sup.3c, where R.sup.3a and R.sup.3b independently of each other are a halogen atom, or R.sup.3a and R.sup.3b together form 3- to 6-membered ring together with the carbon atom bonding them by forming a C.sub.2-C.sub.5haloalkylene chain, and R.sup.3c is selected from the group consisting of a hydrogen atom, halogen atom, C.sub.1-C.sub.5alkyl, C.sub.1-C.sub.5haloalkyl, C.sub.1-C.sub.4haloalkoxy and C.sub.1-C.sub.4haloalkylthio, with a proviso that in case where X.sup.1 is a fluorine atom, chlorine atom or trifluoromethyl, and both X.sup.2 and X.sup.3 are a hydrogen atom, in case where both X.sup.1 and X.sup.2 are fluorine atom and X.sup.3 is a hydrogen atom, and in case where both X.sup.1 and X.sup.2 are trifluoromethyl and X.sup.3 is a hydrogen atom, R.sup.3c is a hydrogen atom, chlorine atom, bromine atom, iodine atom, C.sub.1-C.sub.5alkyl, C.sub.1-C.sub.5haloalkyl, C.sub.1-C.sub.4haloalkoxy or C.sub.1-C.sub.4haloalkylthio.

A substituted alkenylbenzene compound of formula (4):

##STR00001##

wherein X.sup.1 is selected from the group consisting of a halogen atom, SF.sub.5, C.sub.1-C.sub.6haloalkyl, hydroxy C.sub.1-C.sub.6haloalkyl, C.sub.1-C.sub.6alkoxy C.sub.1-C.sub.6haloalkyl, C.sub.3-C.sub.8halocycloalkyl, C.sub.1-C.sub.6haloalkoxy, C.sub.1-C.sub.3haloalkoxy C.sub.1-C.sub.3haloalkoxy, C.sub.1-C.sub.6haloalkylthio, C.sub.1-C.sub.6haloalkylsulfinyl and C.sub.1-C.sub.6haloalkylsulfonyl; X.sup.3 is selected from the group consisting of a hydrogen atom, halogen atom, cyano, nitro, C.sub.1-C.sub.6alkyl, C.sub.1-C.sub.6haloalkyl, C.sub.1-C.sub.6alkoxy and C.sub.1-C.sub.6alkylthio; X.sup.4 is selected from the group consisting of a hydrogen atom, halogen atom, cyano, C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy and C.sub.1-C.sub.4haloalkoxy; R.sup.3 is C(R.sup.3a)(R.sup.3b)R.sup.3c, where R.sup.3a and R.sup.3b independently of each other are a halogen atom, or R.sup.3a and R.sup.3b together form 3- to 6-membered ring together with the carbon atom bonding them by forming a C.sub.2-C.sub.5haloalkylene chain, and R.sup.3c is selected from the group consisting of a hydrogen atom, halogen atom, C.sub.1-C.sub.5alkyl, C.sub.1-C.sub.5haloalkyl, C.sub.1-C.sub.4haloalkoxy and C.sub.1-C.sub.4haloalkylthio, with a proviso that in case where X.sup.1 is a fluorine atom, chlorine atom or trifluoromethyl, and both X.sup.2 and X.sup.3 are a hydrogen atom, in case where both X.sup.1 and X.sup.2 are fluorine atom and X.sup.3 is a hydrogen atom, and in case where both X.sup.1 and X.sup.2 are trifluoromethyl and X.sup.3 is a hydrogen atom, R.sup.3c is a hydrogen atom, chlorine atom, bromine atom, iodine atom, C.sub.1-C.sub.5alkyl, C.sub.1-C.sub.5haloalkyl, C.sub.1-C.sub.4haloalkoxy or C.sub.1-C.sub.4haloalkylthio.

A substituted alkenylbenzene compound of formula (4):

##STR00001##

wherein X.sup.1 is selected from the group consisting of a halogen atom, SF.sub.5, C.sub.1-C.sub.6haloalkyl, hydroxy C.sub.1-C.sub.6haloalkyl, C.sub.1-C.sub.6alkoxy C.sub.1-C.sub.6haloalkyl, C.sub.3-C.sub.8halocycloalkyl, C.sub.1-C.sub.6haloalkoxy, C.sub.1-C.sub.3haloalkoxy C.sub.1-C.sub.3haloalkoxy, C.sub.1-C.sub.6haloalkylthio, C.sub.1-C.sub.6haloalkylsulfinyl and C.sub.1-C.sub.6haloalkylsulfonyl; X.sup.3 is selected from the group consisting of a hydrogen atom, halogen atom, cyano, nitro, C.sub.1-C.sub.6alkyl, C.sub.1-C.sub.6haloalkyl, C.sub.1-C.sub.6alkoxy and C.sub.1-C.sub.6alkylthio; X.sup.4 is selected from the group consisting of a hydrogen atom, halogen atom, cyano, C.sub.1-C.sub.4alkyl, C.sub.1-C.sub.4alkoxy and C.sub.1-C.sub.4haloalkoxy; R.sup.3 is C(R.sup.3a)(R.sup.3b)R.sup.3c, where R.sup.3a and R.sup.3b independently of each other are a halogen atom, or R.sup.3a and R.sup.3b together form 3- to 6-membered ring together with the carbon atom bonding them by forming a C.sub.2-C.sub.5haloalkylene chain, and R.sup.3c is selected from the group consisting of a hydrogen atom, halogen atom, C.sub.1-C.sub.5alkyl, C.sub.1-C.sub.5haloalkyl, C.sub.1-C.sub.4haloalkoxy and C.sub.1-C.sub.4haloalkylthio, with a proviso that in case where X.sup.1 is a fluorine atom, chlorine atom or trifluoromethyl, and both X.sup.2 and X.sup.3 are a hydrogen atom, in case where both X.sup.1 and X.sup.2 are fluorine atom and X.sup.3 is a hydrogen atom, and in case where both X.sup.1 and X.sup.2 are trifluoromethyl and X.sup.3 is a hydrogen atom, R.sup.3c is a hydrogen atom, chlorine atom, bromine atom, iodine atom, C.sub.1-C.sub.5alkyl, C.sub.1-C.sub.5haloalkyl, C.sub.1-C.sub.4haloalkoxy or C.sub.1-C.sub.4haloalkylthio.

A separation medium consisting of a cyclodextrin metal-organic framework (CD-MOF) for separating aromatic compounds and methods of preparing the same are presented. Bottom-up preparations include the following steps: (a) preparing a first mixture comprising a cyclodextrin, an alkali metal salt, water and an alcohol; (b) performing one of the following two steps: (i) stirring the first mixture; or (ii) adding an amount of a surfactant to the first mixture to form a second mixture; and (c) crystallizing the CD-MOF from the first mixture or the second mixture. Top-down preparations include the following steps: (a) preparing a first mixture comprising the cyclodextrin, an alkali metal salt, water and an alcohol; (b) crystallizing the CD-MOF from the first mixture; and (c) optionally performing particle size reduction of the crystallized CD-MOF. The CD-MOFs are amenable for use in methods for separating alkylaromatic and haloaromatic compounds from a mixture of hydrocarbons.

A separation medium consisting of a cyclodextrin metal-organic framework (CD-MOF) for separating aromatic compounds and methods of preparing the same are presented. Bottom-up preparations include the following steps: (a) preparing a first mixture comprising a cyclodextrin, an alkali metal salt, water and an alcohol; (b) performing one of the following two steps: (i) stirring the first mixture; or (ii) adding an amount of a surfactant to the first mixture to form a second mixture; and (c) crystallizing the CD-MOF from the first mixture or the second mixture. Top-down preparations include the following steps: (a) preparing a first mixture comprising the cyclodextrin, an alkali metal salt, water and an alcohol; (b) crystallizing the CD-MOF from the first mixture; and (c) optionally performing particle size reduction of the crystallized CD-MOF. The CD-MOFs are amenable for use in methods for separating alkylaromatic and haloaromatic compounds from a mixture of hydrocarbons.

A substituted alkenylbenzene compound of formula (4):

##STR00001##

wherein X.sup.1 is selected from the group consisting of a halogen atom, SF.sub.5, C.sub.1-C.sub.6haloalkyl, hydroxy C.sub.1-C.sub.6haloalkyl, C.sub.1-C.sub.6alkoxy C.sub.1-C.sub.6haloalkyl, C.sub.3-C.sub.8halocycloalkyl, C.sub.1-C.sub.6haloalkoxy, C.sub.1-C.sub.3haloalkoxy C.sub.1-C.sub.3haloalkoxy, C.sub.1-C.sub.6haloalkylthio, C.sub.1-C.sub.6haloalkylsulfinyl and C.sub.1-C.sub.6haloalkylsulfonyl; X.sup.3 is selected from the group consisting of a hydrogen atom, halogen atom, cyano, nitro, C.sub.1-C.sub.6alkyl, C.sub.1-C.sub.6haloalkyl, C.sub.1-C.sub.6alkoxy and C.sub.1-C.sub.6alkylthio; X.sup.4 is selected from the group consisting of a hydrogen atom, halogen atom, cyano, C.sub.1-C.sub.4alkoxy and C.sub.1-C.sub.4haloalkoxy; R.sup.3 is C(R.sup.3a)(R.sup.3b)R.sup.3c, where R.sup.3a and R.sup.3b independently of each other are a halogen atom, or R.sup.3a and R.sup.3b together form 3- to 6-membered ring together with the carbon atom bonding them by forming a C.sub.2-C.sub.5haloalkylene chain, and R.sup.3c is selected from the group consisting of a hydrogen atom, halogen atom, C.sub.1-C.sub.5haloalkyl, C.sub.1-C.sub.4haloalkoxy and C.sub.1-C.sub.4haloalkylthio, with a proviso that in case where X.sup.1 is a fluorine atom, chlorine atom or trifluoromethyl, and both X.sup.2 and X.sup.3 are a hydrogen atom, in case where both X.sup.1 and X.sup.2 are fluorine atom and X.sup.3 is a hydrogen atom, and in case where both X.sup.1 and X.sup.2 are trifluoromethyl and X.sup.3 is a hydrogen atom, R.sup.3c is a hydrogen atom, chlorine atom, bromine atom, iodine atom, C.sub.1-C.sub.5alkyl, C.sub.1-C.sub.5haloalkyl, C.sub.1-C.sub.4haloalkoxy or C.sub.1-C.sub.4haloalkylthio.

A substituted alkenylbenzene compound of formula (4):

##STR00001##

wherein X.sup.1 is selected from the group consisting of a halogen atom, SF.sub.5, C.sub.1-C.sub.6haloalkyl, hydroxy C.sub.1-C.sub.6haloalkyl, C.sub.1-C.sub.6alkoxy C.sub.1-C.sub.6haloalkyl, C.sub.3-C.sub.8halocycloalkyl, C.sub.1-C.sub.6haloalkoxy, C.sub.1-C.sub.3haloalkoxy C.sub.1-C.sub.3haloalkoxy, C.sub.1-C.sub.6haloalkylthio, C.sub.1-C.sub.6haloalkylsulfinyl and C.sub.1-C.sub.6haloalkylsulfonyl; X.sup.3 is selected from the group consisting of a hydrogen atom, halogen atom, cyano, nitro, C.sub.1-C.sub.6alkyl, C.sub.1-C.sub.6haloalkyl, C.sub.1-C.sub.6alkoxy and C.sub.1-C.sub.6alkylthio; X.sup.4 is selected from the group consisting of a hydrogen atom, halogen atom, cyano, C.sub.1-C.sub.4alkoxy and C.sub.1-C.sub.4haloalkoxy; R.sup.3 is C(R.sup.3a)(R.sup.3b)R.sup.3c, where R.sup.3a and R.sup.3b independently of each other are a halogen atom, or R.sup.3a and R.sup.3b together form 3- to 6-membered ring together with the carbon atom bonding them by forming a C.sub.2-C.sub.5haloalkylene chain, and R.sup.3c is selected from the group consisting of a hydrogen atom, halogen atom, C.sub.1-C.sub.5haloalkyl, C.sub.1-C.sub.4haloalkoxy and C.sub.1-C.sub.4haloalkylthio, with a proviso that in case where X.sup.1 is a fluorine atom, chlorine atom or trifluoromethyl, and both X.sup.2 and X.sup.3 are a hydrogen atom, in case where both X.sup.1 and X.sup.2 are fluorine atom and X.sup.3 is a hydrogen atom, and in case where both X.sup.1 and X.sup.2 are trifluoromethyl and X.sup.3 is a hydrogen atom, R.sup.3c is a hydrogen atom, chlorine atom, bromine atom, iodine atom, C.sub.1-C.sub.5alkyl, C.sub.1-C.sub.5haloalkyl, C.sub.1-C.sub.4haloalkoxy or C.sub.1-C.sub.4haloalkylthio.

The present invention provides a halo-de-carboxylation process for the preparation of organic chlorides, organic bromides and mixtures thereof, from their corresponding carboxylic acids, using a chlorinating agent selected from trichloroisocyanuric acid (TCCA), dichloroisocyanuric acid (DCCA), or combination thereof, and a brominating agent.

The present invention provides a halo-de-carboxylation process for the preparation of organic chlorides, organic bromides and mixtures thereof, from their corresponding carboxylic acids, using a chlorinating agent selected from trichloroisocyanuric acid (TCCA), dichloroisocyanuric acid (DCCA), or combination thereof, and a brominating agent.