摘要:
The present invention relates to a process for preparing an organohalogen compound of the following general formula (5), wherein R2 represents a linear, branched, or aromatic monovalent hydrocarbon group having 1 to 10 carbon atoms, n is the number of methylene groups of 1 to 10, and X2 represents a halogen atom, the process comprising: obtaining a reaction product mixture by subjecting a (ω-halo-2-alkenyl)triphenylphosphonium halide compound of the following general formula (1), wherein n is as defined for the general formula (5) above, X1 and X2 represent, independently of each other, a halogen atom, and Ph represents a phenyl group, to a phosphorus ylide preparation reaction with an alkali metal alkoxide of the following general formula (3), wherein R1 represents a linear or branched alkyl group having 1 to 6 carbon atoms, and M represents an alkali metal atom, in the presence of a lithium halide of the following general formula (2), wherein X3 represents a halogen atom, and then subjecting the aforesaid reaction product mixture to a Wittig reaction with an aldehyde compound of the following general formula (4), wherein R2 is as defined for the general formula (5) above, to form the organohalogen compound of the general formula (5) above.
摘要:
The invention relates to a method for the coupling production of acetic acid or propionic acid reaction products and a vinyl ester of formula R-C(O)O-CH = CH2 by a transvinylation reaction of a carboxylic acid of formula R-C(O)OH with a transvinylation reagent of formula R 1 -C(O)O-CH = CH 2 wherein R represents an aliphatic, cycloaliphatic or aromatic radical and R 1 is methyl or ethyl and the transvinylation reaction is continuously carried out without removing a reaction partner in the presence of a transition metal catalyst containing at least one transition metal selected from the group comprising ruthenium, osmium, rhodium, iridium, palladium and platinum, the obtained reaction mixture being separated from its components, the vinyl ester of formula R-C(O)O-CH = CH2 and the carboxylic acid of formula R 1 -C(O)-OH being separated and the thus obtained carboxylic acid R 1 -C(O)-OH being converted into a derivative of formula R 1 -C(O)-X, R 1 -CH 2 -OH or R 6 -C(O)-OH.
摘要:
New syntheses of phenolic acrylate monomers are provided as well as polymers comprising such phenolic acrylate monomers. Preferred polymers of the invention are useful as a resin component of chemically-amplified positive-acting resists.
摘要:
A process for producing a 4-phenyl-4-oxo-2-butenoic ester derivative, characterized by simultaneously or continuously reacting a sulfuric ester, aromatic hydrocarbon, and maleic anhydride derivative. By the process, a 4-phenyl-4-oxo-2-butenoic ester derivative having a high purity is stably provided in a short time at low cost on an industrial scale.
摘要:
The present invention relates to a process for production of carboxylic acid aryl esters which comprises reacting a carboxylic acid having at least one carboxyl group with a diaryl phosphite compound represented by the following general formula (2): where each R independently represents a hydrogen atom, halogen or alkyl group, n is 1, 2 or 3, and when there exist a plurality of halogen and/or alkyl groups as R, they may be the same or different, in the absence of an organic basic compound.