Disclosed are a type of halogenated conjugated diene compounds (1), and preparation and application thereof. In this method, a conjugated diene compounds is subjected to halogenation reaction to prepare the compound (1). This disclosure further provides a method of preparing a 2-arylmalonic acid derivative from the compound (1) through dehydrohalogenation and aromatization reaction. ##STR00001##

Disclosed are a type of halogenated conjugated diene compounds (1), and preparation and application thereof. In this method, a conjugated diene compounds is subjected to halogenation reaction to prepare the compound (1). This disclosure further provides a method of preparing a 2-arylmalonic acid derivative from the compound (1) through dehydrohalogenation and aromatization reaction. ##STR00001##

The invention relates to a use of a fluorination gas, and the elemental fluorine (F.sub.2) is present in a high concentration, for example, in a concentration of elemental fluorine (F.sub.2), especially of equal to much higher than 15 or even 20% by volume, and to a process for the manufacture of a fluorinated compound by direct fluorination employing a fluorination gas, wherein the elemental fluorine (F.sub.2) is present in a high concentration. The process of the invention is directed to the manufacture of a fluorinated compound, for the exception of fluorinated benzene, by direct fluorination. Especially the invention is of interest in the preparation of fluorinated organic compounds, final products and as well intermediates, for usage in agro-, pharma-, electronics-, catalyst, solvent and other functional chemical applications. The fluorination process of the invention may be performed batch-wise or in a continuous manner.

The invention relates to a use of a fluorination gas, and the elemental fluorine (F.sub.2) is present in a high concentration, for example, in a concentration of elemental fluorine (F.sub.2), especially of equal to much higher than 15 or even 20% by volume, and to a process for the manufacture of a fluorinated compound by direct fluorination employing a fluorination gas, wherein the elemental fluorine (F.sub.2) is present in a high concentration. The process of the invention is directed to the manufacture of a fluorinated compound, for the exception of fluorinated benzene, by direct fluorination. Especially the invention is of interest in the preparation of fluorinated organic compounds, final products and as well intermediates, for usage in agro-, pharma-, electronics-, catalyst, solvent and other functional chemical applications. The fluorination process of the invention may be performed batch-wise or in a continuous manner.

A method of producing carbon tetrachloride includes providing a chloromethanes stream, combining the chloromethanes stream with chlorine and additional carbon tetrachloride to form a reaction mixture, wherein the reaction mixture includes at least stoichiometric levels of chlorine, introducing electromagnetic radiation to the reaction mixture and subjecting the reaction mixture to suitable reaction conditions to form product carbon tetrachloride, and collecting a product stream including the product carbon tetrachloride.

A method of producing carbon tetrachloride includes providing a chloromethanes stream, combining the chloromethanes stream with chlorine and additional carbon tetrachloride to form a reaction mixture, wherein the reaction mixture includes at least stoichiometric levels of chlorine, introducing electromagnetic radiation to the reaction mixture and subjecting the reaction mixture to suitable reaction conditions to form product carbon tetrachloride, and collecting a product stream including the product carbon tetrachloride.

An object of the present disclosure is to provide a chlorinated alkane at a high conversion rate (yield) and with high selectivity. Provided is a method for producing an alkane, the method including the step of subjecting an alkene to a chlorination reaction, the chlorination reaction step being performed by light irradiation using light having a wavelength in the visible light range.

An object of the present disclosure is to provide a chlorinated alkane at a high conversion rate (yield) and with high selectivity. Provided is a method for producing an alkane, the method including the step of subjecting an alkene to a chlorination reaction, the chlorination reaction step being performed by light irradiation using light having a wavelength in the visible light range.

Disclosed are a type of halogenated conjugated diene compounds (1), and preparation and application thereof. In this method, a conjugated diene compounds is subjected to halogenation reaction to prepare the compound (1). This disclosure further provides a method of preparing a 2-arylmalonic acid derivative from the compound (1) through dehydrohalogenation and aromatization reaction.

##STR00001##

Disclosed are a type of halogenated conjugated diene compounds (1), and preparation and application thereof. In this method, a conjugated diene compounds is subjected to halogenation reaction to prepare the compound (1). This disclosure further provides a method of preparing a 2-arylmalonic acid derivative from the compound (1) through dehydrohalogenation and aromatization reaction.

##STR00001##