The disclosure discloses a method for synthesizing 2,3,5,6-tetrafluoro-4-methoxymethyl benzyl alcohol from 1,4-bis(methoxymethyl)-2,3,5,6-tetrafluorobenzene, belongings to the technical field of organic synthesis. 1,4-bis(methoxymethyl)-2,3,5,6-tetrafluorobenzene reacts in mixed solution consisting of sulfuric acid aqueous solution and organic carboxylic acid, the obtained mixture is subjected to ester group hydrolysis reaction in the presence of an inorganic base and then to hydroxyl methylation reaction, 2,3,5,6-tetrafluoro-4-methoxymethyl benzyl alcohol is finally obtained via separation and purification, and 1,4-bis(methoxymethyl)-2,3,5,6-tetrafluorobenzene is recovered. The disclosure not only realizes the resource utilization of low-value 1,4-bis(methoxymethyl)-2,3,5,6-tetrafluorobenzene, and meanwhile has the advantages of mild reaction conditions, simple operation, high synthesis yield, good product quality and the like. The disclosure has high social and economic values.

A method for producing a triglyceride including fatty acids with vicinal diesters: (a) providing a triglyceride including fatty acids with epoxide groups; (b) reacting the epoxide groups with carboxylic acid salts under basic conditions to produce a triglyceride including fatty acids with vicinal ester/alkoxides; (c) protonating the vicinal ester/alkoxides to produce a triglyceride including fatty acids with vicinal ester/alcohols; and (d) reacting the vicinal ester/alcohols with carboxylic acids under acidic conditions to produce a triglyceride including fatty acids with vicinal diesters.

A method for producing a triglyceride including fatty acids with vicinal diesters: (a) providing a triglyceride including fatty acids with epoxide groups; (b) reacting the epoxide groups with carboxylic acid salts under basic conditions to produce a triglyceride including fatty acids with vicinal ester/alkoxides; (c) protonating the vicinal ester/alkoxides to produce a triglyceride including fatty acids with vicinal ester/alcohols; and (d) reacting the vicinal ester/alcohols with carboxylic acids under acidic conditions to produce a triglyceride including fatty acids with vicinal diesters.

A method for producing a triglyceride including fatty acids with vicinal diesters: (a) providing a triglyceride including fatty acids with epoxide groups; (b) reacting the epoxide groups with carboxylic acid salts under basic conditions to produce a triglyceride including fatty acids with vicinal ester/alkoxides; (c) protonating the vicinal ester/alkoxides to produce a triglyceride including fatty acids with vicinal ester/alcohols; and (d) reacting the vicinal ester/alcohols with carboxylic acids under acidic conditions to produce a triglyceride including fatty acids with vicinal diesters.

The disclosure discloses a method for synthesizing 2,3,5,6-tetrafluoro-4-methoxymethyl benzyl alcohol from 1,4-bis(methoxymethyl)-2,3,5,6-tetratluorobenzene, belongings to the technical field of organic synthesis. 1,4-bis(methoxymethyl)-2,3-5,6-tetrafluorobenzene reacts in mixed solution consisting of sulfuric acid aqueous solution and organic carboxylic acid, the obtained mixture is subjected to ester group hydrolysis reaction in the presence of an inorganic base and then to hydroxyl methylation reaction, 2,3,5,6-tetrafluoro-4-methoxymethyl benzyl alcohol is finally obtained via separation and purification, and 1,4-bis(methoxymethyl)-2,3,5,6-tetrafluorobenzene is recovered. The disclosure not only realizes the resource utilization of low-value 1,4-bis(methoxymethyl)-2,3,5,6-tetrafluorobenzene, and meanwhile has the advantages of mild reaction conditions, simple operation, high synthesis yield, good product quality and the like. The disclosure has high social and economic values.

The disclosure discloses a method for synthesizing 2,3,5,6-tetrafluoro-4-methoxymethyl benzyl alcohol from 1,4-bis(methoxymethyl)-2,3,5,6-tetratluorobenzene, belongings to the technical field of organic synthesis. 1,4-bis(methoxymethyl)-2,3-5,6-tetrafluorobenzene reacts in mixed solution consisting of sulfuric acid aqueous solution and organic carboxylic acid, the obtained mixture is subjected to ester group hydrolysis reaction in the presence of an inorganic base and then to hydroxyl methylation reaction, 2,3,5,6-tetrafluoro-4-methoxymethyl benzyl alcohol is finally obtained via separation and purification, and 1,4-bis(methoxymethyl)-2,3,5,6-tetrafluorobenzene is recovered. The disclosure not only realizes the resource utilization of low-value 1,4-bis(methoxymethyl)-2,3,5,6-tetrafluorobenzene, and meanwhile has the advantages of mild reaction conditions, simple operation, high synthesis yield, good product quality and the like. The disclosure has high social and economic values.

A cured-film formation composition that forms a cured film exhibiting excellent liquid-crystal orientation properties and excellent light transmission properties when the cured-film formation composition is used as an orientation material and a layer of a polymerizable liquid crystal is arranged thereon. A cured-film formation composition including a component (A) that is a compound obtained by reacting a cinnamic acid compound of Formula (1) below with a compound having at least one epoxy group in one molecule, ##STR00001##
wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are each independently a substituent selected from a hydrogen atom, a halogen atom, a C.sub.1-6 alkyl, a C.sub.1-6 haloalkyl, a C.sub.1-6 alkoxy, a C.sub.1-6 haloalkoxy, cyano, and nitro; and a component (B) that is a cross-linking agent, an orientation material which is obtained from the composition, and a retardation material which is obtained from the composition.

A process for preparing bis(2-hydroxyethyl) terephthalate, comprising a step of: subjecting ethylene oxide and terephthalic acid in a molar ratio of from 2.5:1 to 3.5:1 to a reaction at an elevated temperature of up to 150 C. in the presence of a solvent mixture containing water and a diol cosolvent in a weight ratio of from 0.2:1 to 5:1.

A process for preparing bis(2-hydroxyethyl) terephthalate, comprising a step of: subjecting ethylene oxide and terephthalic acid in a molar ratio of from 2.5:1 to 3.5:1 to a reaction at an elevated temperature of up to 150 C. in the presence of a solvent mixture containing water and a diol cosolvent in a weight ratio of from 0.2:1 to 5:1.

A process for preparing bis(2-hydroxyethyl) terephthalate, comprising a step of: subjecting ethylene oxide and terephthalic acid in a molar ratio of from 2.5:1 to 3.5:1 to a reaction at an elevated temperature of up to 150 C. in the presence of a solvent mixture containing water and a diol cosolvent in a weight ratio of from 0.2:1 to 5:1.