摘要:
The invention provides novel compounds useful in the production of fluorinated adamantane derivatives which are excellent in etching resistance and useful as photolithographic material and so on, that is, compounds represented by the general formulae (3) and (4): A(-G-Q-R)n (3) Af(-Gf-Q-Rf)n (4) wherein A is an n-valent group derived from adamantine by the removal of n hydrogen atoms in which the residual hydrogen atoms may be each replaced by alkyl; R is a fluorine-containing monovalent organic group; n is an integer of 1 to 4; G is -CH2- or a single bond; Q is -COO- or -OCO-; Af is an n-valent group as defined for A wherein at least one of the hydrogen atoms forming C-H linkages is replaced by fluorine; Rf is a fluorine-containing monovalent organic group; and Gf is -CF2- or a single bond.
摘要:
A process for efficiently producing an acyl fluoride and a carboxylic acid salt while inhibiting side reactions. RA[OCH(CH¿3?)CH2]nOH (1) is reacted with XCOR?B¿ (2) to yield an ester compound (3) (R?A and RB¿ each is a group which upon fluorination becomes perfluoroalkyl; X is halogeno; and n is an integer of 1 to 10). The compound (3) is fluorinated in a liquid phase. The resultant fluoride (4) is decomposed at the ester bond to obtain a perfluoroacyl fluoride (5). This perfluoroacyl fluoride (5) is hydrolyzed and then reacted with ammonia or an alkali metal hydroxide to obtain a carboxylic acid salt (7).
摘要:
An economically advantageous process for producing a fluorinated polyvalent carbonyl compound from inexpensive materials without the need of a complicated synthesis step. The process comprises reacting a polyhydric alcohol having at least two kinds of alcohol skeletons selected among a primary alcohol, secondary alcohol, and tertiary alcohol with an acid halide to obtain a polyvalent ester compound, fluorinating it in a liquid phase to obtain a perfluorinated polyvalent ester compound, and cleaving the perfluorinated polyvalent ester compound at the ester bonds derived from primary and secondary alcohols to obtain a fluorinated polyvalent carbonyl compound.
摘要:
Disclosed are a novel fluorine-containing dioxolane compound which can be used as a raw material for a fluorine-containing polymer that is excellent in characteristics such as heat resistance, mechanical strength, transparency and rigidity, and a novel polymer. Specifically, disclosed are a compound represented by the formula (1A) below, a compound represented by the formula (1B) below, and a polymer having a repeating unit wherein these compounds are polymerized. In the formulae, Qf1 represents a single bond, an oxygen atom, a perfluoroalkylene group having 1-5 carbon atoms or a perfluoroalkylene group having 1-5 carbon atoms with an ether oxygen atom inserted in a carbon-carbon bond; and X2 represents a fluorine atom or a group represented by -OR (wherein R represents a hydrogen atom, an alkyl group having 1-5 carbon atoms or an alkyl group having 1-5 carbon atoms with an ether oxygen atom inserted in a carbon-carbon bond).
摘要:
A method for producing a fluorine-containing compound, characterized in that a compound (1) is reacted with a compound (2) to produce a compound (3) having a fluorine content of 30 mass % or more, the compound (3) is fluorinated in a liquid phase to produce a compound (4), and a compound (5) and/or a compound (6) are produced through the cleavage reaction of an ester bonding of the compound (4): HOCH2-RA-CH2OH (1), XCOR?B (2), RBCOOCH¿2-RA-CH2OCOR?B (3), RBFCOOCH¿2-RAF-CF2OCORBF (4), FCO-RAF-COF (5), RBF-COF (6).