The present invention provides a polysaccharide supported fluorinating agents which can be used in fluorination reactions. The invention particularly describes a new bacterial cellulose supported tetra-n-butyl ammonium fluoride complex [NBu4(Bac-Cell-OH)F] which is stable and non-hygroscopic. The invention further relates to a process for fluorination using the [NBu4(Bac-Cell-OH)F] complex.

A resin having a small linear thermal expansion coefficient and a low absorbance is provided. The resin is characterized by including at least one structure selected from structures represented by the following general formulae (1) and (2): ##STR00001##

A resin having a small linear thermal expansion coefficient and a low absorbance is provided. The resin is characterized by including at least one structure selected from structures represented by the following general formulae (1) and (2): ##STR00001##

A resin having a small linear thermal expansion coefficient and a low absorbance is provided. The resin is characterized by including at least one structure selected from structures represented by the following general formulae (1) and (2): ##STR00001##

The present disclosure provides a method for producing a composition comprising a purified fluorine-containing ether compound represented by formula (1): CHX.sup.1X.sup.2CF.sub.2OX.sup.3, wherein X.sup.1 and X.sup.2 are the same or different and each represents a hydrogen atom, a fluorine atom, or a trifluoromethyl group, and X.sup.3 represents a C.sub.1-6 alkyl group, provided that not both X.sup.1 and X.sup.2 are trifluoromethyl groups.

The present disclosure provides a method for producing a composition comprising a purified fluorine-containing ether compound represented by formula (1): CHX.sup.1X.sup.2CF.sub.2OX.sup.3, wherein X.sup.1 and X.sup.2 are the same or different and each represents a hydrogen atom, a fluorine atom, or a trifluoromethyl group, and X.sup.3 represents a C.sub.1-6 alkyl group, provided that not both X.sup.1 and X.sup.2 are trifluoromethyl groups.

The present disclosure provides a method for producing a composition comprising a purified fluorine-containing ether compound represented by formula (1): CHX.sup.1X.sup.2CF.sub.2OX.sup.3, wherein X.sup.1 and X.sup.2 are the same or different and each represents a hydrogen atom, a fluorine atom, or a trifluoromethyl group, and X.sup.3 represents a C.sub.1-6 alkyl group, provided that not both X.sup.1 and X.sup.2 are trifluoromethyl groups.

Disclosed herein is an efficient, environment friendly and commercially viable process for preparation of chloromethylated compound of formula I in substantially pure form and high yield, from the compound of formula II. The process includes contacting the compound of formula II with a chloromethylating agent generated in-situ by reaction of a formaldehyde precursor and hydrogen chloride, in a suitable solvent/contacting medium and in the presence of a catalytic amount of a short chain/low molecular weight carboxylic acid of formula III. I II III wherein, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are as defined in the description. ##STR00001##

Disclosed herein is an efficient, environment friendly and commercially viable process for preparation of chloromethylated compound of formula I in substantially pure form and high yield, from the compound of formula II. The process includes contacting the compound of formula II with a chloromethylating agent generated in-situ by reaction of a formaldehyde precursor and hydrogen chloride, in a suitable solvent/contacting medium and in the presence of a catalytic amount of a short chain/low molecular weight carboxylic acid of formula III. I II III wherein, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are as defined in the description. ##STR00001##

Provided is a novel production method for a fluorinated organic compound (1), the method comprising step A of fluorinating a hydrogen atom-containing organic compound (2) using IF.sub.5 in a liquid composition comprising an organic solvent, the amount of the hydrogen atom-containing organic compound (2) being 1.8 mol or more per liter of the organic solvent.