A method for producing a fluoromethyl derivative represented by formula (1), the method including step A of reacting an alkene compound represented by formula (2) with a fluorine source represented by formula MF.sub.n, in the presence of a hypervalent-iodine aromatic compound (1a), or in the presence of an aromatic iodine compound (1b) and an oxidant (A) to fluorinate the alkene compound. ##STR00001##

A method for producing a fluoromethyl derivative represented by formula (1), the method including step A of reacting an alkene compound represented by formula (2) with a fluorine source represented by formula MF.sub.n, in the presence of a hypervalent-iodine aromatic compound (1a), or in the presence of an aromatic iodine compound (1b) and an oxidant (A) to fluorinate the alkene compound. ##STR00001##

Copper(II) bromide mediated oxidation of acylated enol and use of the reaction in the synthesis of ,-unsaturated or -bromo ketones or aldehydes are disclosed. The method provides an efficient and practical process for manufacturing dehydrohedione (DHH) and many other versatile ,-unsaturated or -bromo ketones or aldehydes in large scales to avoid using precious metal compounds.

Copper(II) bromide mediated oxidation of acylated enol and use of the reaction in the synthesis of ,-unsaturated or -bromo ketones or aldehydes are disclosed. The method provides an efficient and practical process for manufacturing dehydrohedione (DHH) and many other versatile ,-unsaturated or -bromo ketones or aldehydes in large scales to avoid using precious metal compounds.

Copper(II) bromide mediated oxidation of acylated enol and use of the reaction in the synthesis of ,-unsaturated or -bromo ketones or aldehydes are disclosed. The method provides an efficient and practical process for manufacturing dehydrohedione (DHH) and many other versatile ,-unsaturated or -bromo ketones or aldehydes in large scales to avoid using precious metal compounds.

Copper(II) bromide mediated oxidation of acylated enol and use of the reaction in the synthesis of ,-unsaturated or -bromo ketones or aldehydes are disclosed. The method provides an efficient and practical process for manufacturing dehydrohedione (DHH) and many other versatile ,-unsaturated or -bromo ketones or aldehydes in large scales to avoid using precious metal compounds.

A method for producing a fluoromethyl derivative represented by formula (1), the method including step A of reacting an alkene compound represented by formula (2) with a fluorine source represented by formula MF.sub.n, in the presence of a hypervalent-iodine aromatic compound (1a), or in the presence of an aromatic iodine compound (1b) and an oxidant (A) to fluorinate the alkene compound.

##STR00001##

A method for producing a fluoromethyl derivative represented by formula (1), the method including step A of reacting an alkene compound represented by formula (2) with a fluorine source represented by formula MF.sub.n, in the presence of a hypervalent-iodine aromatic compound (1a), or in the presence of an aromatic iodine compound (1b) and an oxidant (A) to fluorinate the alkene compound.

##STR00001##

The present invention relates to the field of organic synthesis and more specifically it concerns a process for preparing compound of formula (I) by a cross metathesis reaction. Said compound of formula (I) is valuable new chemical intermediate for producing perfuming ingredients and is also part of the present invention.

The present invention relates to the field of organic synthesis and more specifically it concerns a process for preparing compound of formula (I) by a cross metathesis reaction. Said compound of formula (I) is valuable new chemical intermediate for producing perfuming ingredients and is also part of the present invention.