The process is provided for forming the reaction product comprising the homologue mixture of I(CF.sub.2).sub.nI, wherein n is 3 to 7, which may contain at least one of the contaminants ICF.sub.2I and I(CF.sub.2).sub.2I, by the steps comprising (a) reacting iodine with hexafluoropropylene oxide at a temperature of 150 C. to 210 C. in a reactor, the amount of said hexafluoro-propylene oxide being a portion of the total amount of hexafluoropropylene oxide to be reacted with said iodine, thereby forming a reaction product containing gaseous perfluoroacetyl fluoride as a reaction by-product, (b) cooling said reaction product to become liquid except for said gaseous perfluoroacetyl fluoride, (c) venting said perfluoroacetyl fluoride from said reactor, and (d) repeating said steps (a), (b), and (c) until said total amount of said HFPO is reacted with said iodine.

The present invention provides new stable crystalline N-iodoamides-1-iodo-3,5,5-trimethylhydantoin (1-ITMH) and 3-iodo-4,4-dimethyl-2-oxazolidinone (IDMO). The present invention further provides a process for the preparation of organic iodides using N-iodoamides of this invention and recovery of the amide co-products from waste water.

The present invention provides new stable crystalline N-iodoamides-1-iodo-3,5,5-trimethylhydantoin (1-ITMH) and 3-iodo-4,4-dimethyl-2-oxazolidinone (IDMO). The present invention further provides a process for the preparation of organic iodides using N-iodoamides of this invention and recovery of the amide co-products from waste water.

The present invention provides new stable crystalline N-iodoamides-1-iodo-3,5,5-trimethylhydantoin (1-ITMH) and 3-iodo-4,4-dimethyl-2-oxazolidinone (IDMO). The present invention further provides a process for the preparation of organic iodides using N-iodoamides of this invention and recovery of the amide co-products from waste water.

The present application relates to a method for photochlorination, and specifically to photochlorination by a photochemical reaction of an aromatic compound with gaseous chlorine so as to prepare a trichloromethyl-substituted benzene, and to a method using bis-(trichloromethyl)-benzene as the trichloromethyl-substituted benzene to prepare by further reaction bis-(chloroformyl)-benzene. Through the control of temperature, illuminance and consumption of gaseous chlorine, the method of this application can greatly improve the purity of trichloromethyl-substituted benzene and further prepare polymer-grade bis-(chloroformyl)-benzene with low cost. The present application also relates to a method for purifying trichloromethyl-substituted benzene, and specifically to a method for purifying trichloromethyl-substituted benzene via molecular distillation. The present application further relates to a photochlorination reactor for use in photochlorination reactions (such as those of the present application).

The present application relates to a method for photochlorination, and specifically to photochlorination by a photochemical reaction of an aromatic compound with gaseous chlorine so as to prepare a trichloromethyl-substituted benzene, and to a method using bis-(trichloromethyl)-benzene as the trichloromethyl-substituted benzene to prepare by further reaction bis-(chloroformyl)-benzene. Through the control of temperature, illuminance and consumption of gaseous chlorine, the method of this application can greatly improve the purity of trichloromethyl-substituted benzene and further prepare polymer-grade bis-(chloroformyl)-benzene with low cost. The present application also relates to a method for purifying trichloromethyl-substituted benzene, and specifically to a method for purifying trichloromethyl-substituted benzene via molecular distillation. The present application further relates to a photochlorination reactor for use in photochlorination reactions (such as those of the present application).

The inventors have now succeeded in developing arylsulfonium salts, in particular triarylsulfonium salts and dibenzothiophenium salts and a new use of said arylsulfonium salts. These compounds have the advantage of having a thioaryl group as leaving group, which allows all side products to be separated from the radiolabelled product. Said compounds are therefore useful tools in a method for synthesizing iodo- or astatoarryl compounds, in particular radioiodo- or radioastatoaryl compounds. The present invention relates to a method for synthesizing iodo- or astatoaryl compounds comprising the reaction of an arylsulfonium compound with an iodide or astatide salt, respectively. The invention also relates to arylsulfonium compounds as such. The invention also concerns a method of synthesizing an iodo- or astatolabelled biomolecule and/or vector using said iodo- or astatoraryl compound.

The inventors have now succeeded in developing arylsulfonium salts, in particular triarylsulfonium salts and dibenzothiophenium salts and a new use of said arylsulfonium salts. These compounds have the advantage of having a thioaryl group as leaving group, which allows all side products to be separated from the radiolabelled product. Said compounds are therefore useful tools in a method for synthesizing iodo- or astatoarryl compounds, in particular radioiodo- or radioastatoaryl compounds. The present invention relates to a method for synthesizing iodo- or astatoaryl compounds comprising the reaction of an arylsulfonium compound with an iodide or astatide salt, respectively. The invention also relates to arylsulfonium compounds as such. The invention also concerns a method of synthesizing an iodo- or astatolabelled biomolecule and/or vector using said iodo- or astatoraryl compound.

Described herein are methods for making intermediates useful in the production of fragrance ingredients starting from myrcene. In particular, methods for making geranyl chloride, (E)-6,10-dimethylundeca-1,5,9-triene and (E)-6,10-dimethylundeca-5,9-dien-1-yne are described. Methods for making other intermediates in the process are also described.

Described herein are methods for making intermediates useful in the production of fragrance ingredients starting from myrcene. In particular, methods for making geranyl chloride, (E)-6,10-dimethylundeca-1,5,9-triene and (E)-6,10-dimethylundeca-5,9-dien-1-yne are described. Methods for making other intermediates in the process are also described.