WO2010038828A1 - N-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物およびその製造方法 - Google Patents
N-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物およびその製造方法 Download PDFInfo
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- C07D295/16—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms
- C07D295/20—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms by radicals derived from carbonic acid, or sulfur or nitrogen analogues thereof
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- C07C271/24—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atom of at least one of the carbamate groups bound to a carbon atom of a ring other than a six-membered aromatic ring
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- C07C271/06—Esters of carbamic acids
- C07C271/08—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms
- C07C271/10—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C271/14—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by halogen atoms or by nitro or nitroso groups
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- C07D211/06—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
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- C07D211/06—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D211/08—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms
- C07D211/10—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms with radicals containing only carbon and hydrogen atoms attached to ring carbon atoms
- C07D211/14—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms with radicals containing only carbon and hydrogen atoms attached to ring carbon atoms with hydrocarbon or substituted hydrocarbon radicals attached to the ring nitrogen atom
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- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
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- C07D211/06—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D211/08—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms
- C07D211/10—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms with radicals containing only carbon and hydrogen atoms attached to ring carbon atoms
- C07D211/16—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms with radicals containing only carbon and hydrogen atoms attached to ring carbon atoms with acylated ring nitrogen atom
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- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/44—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D317/46—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
- C07D317/48—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
- C07D317/50—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to atoms of the carbocyclic ring
- C07D317/52—Radicals substituted by halogen atoms or nitro radicals
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- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/44—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D317/46—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
- C07D317/48—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
- C07D317/62—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to atoms of the carbocyclic ring
Definitions
- the present invention relates to an N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound which is a novel compound useful as a photobase generator and a method for producing the same.
- the N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound according to the present invention is a compound that decomposes in response to ultraviolet rays of a specific wavelength to generate a base.
- a compound that generates a base by being decomposed by radiation such as ultraviolet rays
- the generated base for example, an amine compound
- the photobase generator is particularly used for photoresist applications.
- ultraviolet rays having a wavelength of about 365 nm called i-line are used as light rays used for pattern formation. Therefore, as a photobase generator used for a photoresist, a compound that has an absorption peak in a wavelength region of about 365 nm and efficiently generates an amine compound is desired.
- ultraviolet rays called h-rays having a wavelength of about 405 nm have been used for pattern formation, and the development of photobase generators having absorption peaks in these wavelength regions is desired.
- Non-Patent Document 1 discloses 2-nitrobenzyloxycarbonylcyclohexylamine represented by the following formula as a photobase generator.
- this compound has no sensitivity to h-rays, it is difficult to generate a base by irradiating this compound with h-rays.
- Patent Document 1 discloses a photobase generator having two or more groups represented by the following general formula in the molecule.
- Patent Document 1 only discloses the generation of a base when an ultra-high pressure mercury lamp (wavelength: mainly 280 to 600 nm) is used. There is no explicit description in Patent Document 1 regarding whether the photobase generator disclosed in Patent Document 1 generates a base by i-line or h-line.
- Patent Document 2 discloses a photobase generator represented by the following formula.
- Patent Document 2 has sensitivity to i-line
- Patent Document 2 does not describe that it has sensitivity to h-line. .
- the present invention provides a novel photobase generator capable of generating a base with high sensitivity to h-rays instead of the conventional 2-nitro-4,5-dimethoxybenzyloxycarbonylamine compound.
- Another object of the present invention is to provide a simple method for producing a novel photobase generator.
- the gist of the present invention is as follows.
- R 1 and R 2 are each independently an optionally substituted alkyl group having 1 to 12 carbon atoms or an optionally substituted aryl group having 6 to 12 carbon atoms.
- R 1 and R 2 are linked to form an alkylene group having 1 to 12 carbon atoms which may have a substituent or an arylene group having 6 to 12 carbon atoms which may have a substituent.
- R 3 and R 4 are each independently a hydrogen atom, an alkyl group or an aryl group which may having 6 to 12 carbon atoms which may have a substituent having 1 to 12 carbon atoms which may have a substituent, R 3 And at least one of R 4 is not a hydrogen atom, R 3 and R 4 may be linked to form a cyclic structure that may contain a hetero atom, R 5 to R 9 are each independently a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, a halogen atom, a cyano group, an amino group, or a carbon number.
- R 1 and R 2 are methyl groups, R 3 and R 4 are linked to form a morpholyl group, and R 5 to R 9 are all hydrogen atoms.
- R 1 and R 2 are methyl groups
- R 3 is a hydrogen atom
- R 4 is a cyclohexyl group
- R 5 to R 9 are all hydrogen atoms.
- the compound represented by the general formula (I) is N- ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) -2,6-dimethylpiperidine, N- ( ⁇ - (4 -Nitrophenyl) -2-nitro-4,5-dimethoxybenzyloxycarbonyl) -2,6-dimethylpiperidine, N- ( ⁇ - (2-nitrophenyl) -2-nitro-4,5-dimethoxybenzyloxycarbonyl) ) -2,6-dimethylpiperidine, N- ( ⁇ - (2-nitro-4,5-dimethoxyphenyl) -2-nitro-4,5-dimethoxybenzyloxycarbonyl) -2,6-dimethylpiperidine, N- ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) -piperidine and N- ( ⁇ - (2-nitro-4,5-dimethoxyphenyl) -2-nitro-4,5-dimethoxypheny
- R 1 and R 2 are each same as R 1 and R 2 in the general formula (I)
- R 5 ⁇ R 9 is R 5 ⁇ in the formula (I), respectively Same as R 9
- the general formula (IV) is the same as R 3 and R 4 in the R 3 and R 4 each general formula (I)
- X represents a fluorine atom, a chlorine atom, a bromine atom, a halogen atom selected from iodine atom It is. ).
- R 1 and R 2 are each same as R 1 and R 2 in the general formula (I)
- R 5 ⁇ R 9 is R 5 ⁇ in the formula (I), respectively Same as R 9
- R 4 is the same as R 4 in formula (I).
- a carbinol compound represented by the following general formula (VI) and a carbonyl compound represented by the following general formula (VII) are reacted to synthesize an ester compound represented by the following general formula (VIII).
- Method for producing benzyloxycarbonyl) amine compound
- R 1 and R 2 are the same as R 1 and R 2 in the general formula respectively (I)
- the general formula R 5 ⁇ R 9 are each (I) Are the same as R 5 to R 9 in FIG.
- Z is a chlorine atom, a bromine atom, an iodine atom, a trichloromethoxy group or a 1-imidazolyl group
- R 10 is a chlorine atom, trichloromethoxy group, 1-imidazolyl group, phenoxy group, 4-nitrophenoxy group or 4-cyanophenoxy group
- R 3 and R 4 are each same as R 3 and R 4 in the general formula (I).
- the compound represented by the general formula (VII) is phosgene, trichloromethyl chloroformate, triphosgene, carbonyldiimidazole, chloroformate-p-nitrophenyl, or chloroformate-p-cyanophenyl.
- the N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound of the present invention is useful as a photobase generator, and in particular, photobase generation having sensitivity to h-rays. Useful as an agent.
- the N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound of the present invention can be used as a constituent of a pattern forming material in a photoresist or the like.
- FIG. 1 is a 1 H-NMR spectrum of N- ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) cyclohexylamine obtained in Example 1.
- FIG. 2 is a 1 H-NMR spectrum of N- ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) morpholine obtained in Example 2.
- FIG. 3 shows N- ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) cyclohexylamine obtained in Example 1, ⁇ -phenyl-2-nitro-4 obtained in Example 2.
- FIG. 1 shows UV spectra of 2,5-dimethoxybenzyloxycarbonylmorpholine and 2-nitro-4,5-dimethoxybenzyloxycarbonylcyclohexylamine obtained in Comparative Example 1.
- FIG. 4 shows N- ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) cyclohexylamine obtained in Example 1 and N- ( ⁇ -phenyl-2-yl) obtained in Example 2.
- the TG measurement result of (nitro-4,5-dimethoxybenzyloxycarbonyl) morpholine is shown.
- FIG. 5 is a 1 H-NMR spectrum of N- ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) cyclohexylmethylamine obtained in Example 4.
- FIG. 6 shows the transmittance curves of filters 1 and 2 used in Examples 9 to 15 and Comparative Example 2.
- N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound [N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound]
- the N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound of the present invention (hereinafter also simply referred to as the compound of the present invention) is represented by the following general formula (I): .
- an alkoxy group is introduced into the nitrobenzyl group by OR 1 and OR 2 , thereby increasing the wavelength of light absorbed by the compound of the present invention.
- the sensitivity of the compound of the present invention to h-ray is increased by introducing an aromatic group at the ⁇ -position of the nitrobenzyl group.
- the compound of the present invention generates a conventionally known base HNR 3 R 4 by irradiation with ultraviolet rays such as i-line and h-line, and this base functions as a catalyst for a crosslinking reaction or a polymerization reaction, or as a crosslinking agent itself.
- R 1 to R 9 in the general formula (I) will be described.
- R 1 and R 2 are each independently an optionally substituted alkyl group having 1 to 12 carbon atoms or an optionally substituted aryl group having 6 to 12 carbon atoms.
- R 1 and R 2 are linked to form an alkylene group having 1 to 12 carbon atoms which may have a substituent or an arylene group having 6 to 12 carbon atoms which may have a substituent.
- OR 1 and OR 2 constitute an alkoxy group, and by introducing such an alkoxy group into the nitrobenzyl group, the wavelength of light absorbed by the compound represented by formula (I) is increased. . As a result, the compound of the present invention can absorb the h-ray and generate a base.
- alkyl groups having 1 to 12 carbon atoms that may have a substituent those having 1 to 6 carbon atoms that may have a substituent from the viewpoint of the amount of base generated per unit weight and ease of production.
- An alkyl group is preferable, and an alkyl group having 1 to 3 carbon atoms which may have a substituent is more preferable.
- the substituent include a methoxy group, a phenyl group, and a 2-thioxanthyl group.
- Examples of the alkyl group having 1 to 12 carbon atoms which may have a substituent include a methyl group, an ethyl group, an n-propyl group, an i-propyl group, an n-butyl group and an i-butyl group. Can do. Among these, a methyl group and an ethyl group are preferable from the viewpoint of the amount of base generated per unit weight.
- the carbon number of the “optionally substituted alkyl group having 1 to 12 carbon atoms (1 to 6, 1 to 3)” is the carbon number of the alkyl group portion, and the carbon number in the substituent is Shall not be included.
- an aryl group having 6 carbon atoms that may have a substituent from the viewpoint of the amount of base generated per unit weight and ease of production. Is preferred.
- substituent include the same as those described in the description of the alkyl group having 1 to 12 carbon atoms which may have a substituent.
- Examples of the aryl group having 6 to 12 carbon atoms which may have a substituent include a phenyl group, a naphthyl group, and a toluyl group.
- the carbon number of the “aryl group having 6 to 12 carbon atoms (6) which may have a substituent” is the carbon number of the aryl group portion, and does not include the carbon number in the substituent.
- R 1 and R 2 may be linked to each other to have a substituent, an alkylene group having 1 to 12 carbon atoms, or an arylene group having 6 to 12 carbon atoms that may have a substituent. May be formed.
- substituent include a methyl group, an ethyl group, a methoxy group, and a phenyl group.
- alkylene group or arylene group formed by linking R 1 and R 2 include a methylene group, an ethylene group, a 1,3-propylene group, and a 1,2-phenylene group.
- the carbon numbers of the “alkylene group having 1 to 12 carbon atoms which may have a substituent” and the “arylene group having 6 to 12 carbon atoms which may have a substituent” are the alkylene group and the arylene group, respectively. This is the number of carbon atoms in the portion and does not include the number of carbon atoms in the substituent.
- R 3 and R 4 are each independently a hydrogen atom, an optionally substituted alkyl group having 1 to 12 carbon atoms, or an optionally substituted carbon group having 6 to 12 carbon atoms. In which at least one of R 3 and R 4 is not a hydrogen atom, but R 3 and R 4 may be linked to form a cyclic structure that may contain a hetero atom.
- alkyl groups having 1 to 12 carbon atoms that may have a substituent those having 1 to 8 carbon atoms that may have a substituent from the viewpoint of the amount of base generated per unit weight and ease of production.
- An alkyl group is preferable, and an alkyl group having 1 to 6 carbon atoms which may have a substituent is more preferable.
- Examples of the substituent are the same as those described in the description of the alkyl group having 1 to 12 carbon atoms which may have a substituent of R 1 and R 2 .
- alkyl group having 1 to 12 carbon atoms which may have a substituent examples include a cyclohexyl group in addition to those exemplified for R 1 and R 2 above.
- Preferable examples of the alkyl group having 1 to 12 carbon atoms which may have a substituent are a cyclohexyl group, a methyl group and an ethyl group.
- the carbon number of the “optionally substituted alkyl group having 1 to 12 carbon atoms (1 to 8, 1 to 6)” is the carbon number of the alkyl group portion, and the carbon number in the substituent is Shall not be included.
- an aryl group having 6 carbon atoms that may have a substituent from the viewpoint of the amount of base generated per unit weight and ease of production. Is preferred.
- substituents are the same as those described in the description of the alkyl group having 1 to 12 carbon atoms which may have a substituent of R 1 and R 2 .
- Examples of the aryl group having 6 to 12 carbon atoms which may have a substituent include the same groups as those exemplified for R 1 and R 2 above.
- the carbon number of the “aryl group having 6 to 12 carbon atoms (6) which may have a substituent” is the carbon number of the aryl group portion, and does not include the carbon number in the substituent.
- At least one of R 3 and R 4 is not a hydrogen atom.
- both are hydrogen atoms
- the stability of the compound of the general formula (I) is deteriorated, and the amine generated by irradiation with ultraviolet light is also ammonia. Therefore, the compound of the general formula (I) in which R 3 and R 4 are both hydrogen atoms is not useful as a base generator.
- R 3 and R 4 may be linked to form a cyclic structure that may contain a heteroatom, but a substituent may be bonded on the ring.
- substituent may include an alkylene group having 1 to 12 carbon atoms or a substituent which may have a substituent by linking R 1 and R 2 of R 1 and R 2.
- arylene group having 6 to 12 carbon atoms are the same as those described in the description.
- examples of the group consisting of R 3 and R 4 when R 3 and R 4 are linked to form a cyclic structure include an ethylene group, trimethylene group, tetramethylene group, pentamethylene group, 3- Examples include an oxapentamethylene group and a 1,5-dimethylpentamethylene group.
- R 5 to R 9 are each independently a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, a halogen atom, A cyano group, an amino group, an alkylamino group having 1 to 12 carbon atoms, an acyloxy group having 1 to 12 carbon atoms, a nitro group, or an acyl group having 1 to 12 carbon atoms;
- alkyl groups having 1 to 12 carbon atoms an alkyl group having 1 to 6 carbon atoms is preferable, and an alkyl group having 1 to 3 carbon atoms is more preferable from the viewpoint of the amount of base generated per unit weight and ease of production.
- Examples of the alkyl group having 1 to 12 carbon atoms are the same as those described in the description of R 3 and R 4 .
- an aryl group having 6 carbon atoms is preferable from the viewpoint of the amount of base generated per unit weight and the ease of production.
- Examples of the aryl group having 6 to 12 carbon atoms include a phenyl group and a naphthyl group.
- alkoxy group having 1 to 12 carbon atoms examples include a methoxy group and an ethoxy group.
- halogen atom examples include a chlorine atom and a bromine atom.
- Examples of the alkyl of the alkylamino group having 1 to 12 carbon atoms include a methyl group, an ethyl group, and a propyl group.
- Examples of the acyloxy group having 1 to 12 carbon atoms include an acetoxyl group.
- acyl group having 1 to 12 carbon atoms examples include formyl group, acetyl group and benzoyl group.
- the compound of the present invention has high sensitivity to the h-line as can be seen from the examples described later, because the aromatic group having R 5 to R 9 described above is introduced at the ⁇ -position of the nitrobenzyl group.
- the compound of the present invention introduces an alkoxy group into the nitrobenzyl group by OR 1 and OR 2 and introduces an aromatic group at the ⁇ -position of the nitrobenzyl group. Furthermore, the base (HNR 3 R 4 ) is generated by irradiation with these ultraviolet light.
- the compound of the present invention has high heat resistance (specifically, the 5% weight loss temperature measured by TG is usually 150 ° C. or more and 300 ° C. or less), such as drying of the solvent after coating, It is suitable as a photopolymerization initiator for a composition for a use intended to be heated before polymerization.
- Particularly preferred compounds as the compounds of the present invention described above are N- ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) -cyclohexylamine, N- ( ⁇ -phenyl-2-nitro-4, 5-dimethoxybenzyloxycarbonyl) -morpholine, N- ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) -cyclohexylmethylamine, N- ( ⁇ -phenyl-2-nitro-4,5- Dimethoxybenzyloxycarbonyl) -2,6-dimethylpiperidine, N- ( ⁇ - (4-nitrophenyl) -2-nitro-4,5-dimethoxybenzyloxycarbonyl) -2,6-dimethylpiperidine, N- ( ⁇ -(2-Nitrophenyl) -2-nitro-4,5-dimethoxybenzyloxycarbonyl) -2,6-dimethylpiperidine, N- ( ⁇ - (2-nitro
- the compounds of the present invention can be prepared by methods utilizing carbon nucleophiles such as Grignard reagents. Specifically, after reacting an aldehyde compound represented by the following general formula (II) and an aromatic compound represented by the following general formula (III), the resulting product is represented by the following general formula (IV).
- the compound of this invention can be manufactured by making it react with the compound represented by these.
- the product is represented by the general formula (IV).
- the compound may be allowed to react with the compound, but it can also be reacted without isolation.
- R 1 and R 2 are the same as R 1 and R 2 in the general formula respectively (I).
- R 5 ⁇ R 9 in the R 5 ⁇ R 9 are each formula (I)
- M is a substituent containing a metal, the metal, Mg, Zn Li, Sn or Cu.
- M include those in which a halogen atom or an alkoxy group is coordinated to the metal (excluding Li), and specific examples of M include Li, MgCl, MgBr, ZnCl, and the like.
- the general formula (IV), is the same as R 3 and R 4 in the R 3 and R 4 each general formula (I), X represents fluorine, chlorine atom, bromine atom, a halogen atom selected from iodine atom It is.
- an isocyanate compound represented by the following general formula (V) is represented by the above general formula (II) instead of the compound represented by the general formula (IV) in the above reaction.
- the method of making it react with the product obtained by making the aldehyde compound and the aromatic compound represented by the said general formula (III) react is mentioned. Also in this case, after the product formed by reacting the aldehyde compound represented by the general formula (II) and the aromatic compound represented by the general formula (III) is isolated, the product represented by the general formula (V) is represented. The compound may be reacted with the product, but can also be reacted without isolation.
- R 4 is the same as R 4 in formula (I).
- an N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound in which R 3 is a hydrogen atom in the general formula (I) is obtained.
- the nitrogen to which R 3 in this way is R 3 obtained by are hydrogen atom N-(alpha-aromatic-substituted-2-nitro-4,5-dialkoxy benzyloxycarbonyl) amine compound are bonded Since the atom has nucleophilicity, a nucleophilic substitution reaction can be performed with a halogenated alkane such as methyl halide or ethyl halide.
- an N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound in which R 3 is not a hydrogen atom can be obtained.
- the nucleophilic substitution reaction can be carried out more efficiently by reacting the hydrogen atom of R 3 with lithium hydride or sodium hydride to substitute with lithium or sodium.
- the compound obtained by the reaction is reacted with the isocyanate compound represented by the general formula (V).
- Specific examples of the reaction include reacting 2-nitro-4,5-dimethoxybenzaldehyde with phenylmagnesium bromide and then reacting with cyclohexyl isocyanate either with or without isolation.
- a reaction for obtaining ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) cyclohexylamine can be mentioned.
- the production method 1 utilizes a well-known reaction such as a carbon nucleophilic reaction such as a Grignard reaction and a nucleophilic addition of a hydroxy group activated by a carbon nucleophile.
- a well-known reaction such as a carbon nucleophilic reaction such as a Grignard reaction and a nucleophilic addition of a hydroxy group activated by a carbon nucleophile.
- the compound of the present invention can be synthesized by a simple reaction of only two steps if the aforementioned isolation step is omitted.
- the amount of the compound represented by the general formula (III) used in these reactions is not particularly limited, but is preferably 0.9 to 1.2 equivalents relative to the aldehyde compound represented by the general formula (II). .
- the compound of the general formula (III) is used within such a range, a product can be obtained in a good yield, and the production of by-products is small.
- the amount of the compound represented by general formula (IV) or general formula (V) in these reactions is not particularly limited, but is 1.0 to 1 with respect to the aldehyde compound represented by general formula (II). It is preferable to use 2 equivalents.
- a product can be obtained with a good yield, and a urea derivative as a by-product is hardly produced.
- reaction solvent in these reactions can be used without particular limitation as long as it can be used for carbon nucleophilic reaction such as Grignard reaction.
- carbon nucleophilic reaction such as Grignard reaction.
- diethyl ether, tetrahydrofuran, tetrahydropyran and the like can be used, but the solvent that can be used is not limited to these.
- the temperature of these reactions is not particularly limited, but a product formed by reacting the aldehyde compound represented by the general formula (II) with the aromatic compound represented by the general formula (III) is isolated.
- a product formed by reacting the aldehyde compound represented by the general formula (II) with the aromatic compound represented by the general formula (III) is isolated.
- the reaction between the following product and the compound represented by the general formula (IV) or the general formula (V) is performed, 0 ° C. to 25 ° C. is desirable. At such a temperature range, the reaction is not slow and the product can be obtained in good yield.
- the reaction pressure for these reactions is not particularly limited, but is preferably from normal pressure to 0.1 MPaG, more preferably normal pressure.
- reaction time of the aldehyde compound and the aromatic compound is usually 1 to 24 hours, and the compound obtained by the reaction is represented by the general formula (IV) or (V).
- the reaction time with the compound is usually 1 to 24 hours.
- the compound of the present invention reacts with a carbinol compound represented by the following general formula (VI) and a compound represented by the following general formula (IV) or an isocyanate compound represented by the following general formula (V). Can be manufactured.
- R 1 and R 2 are each same as R 1 and R 2 in the general formula (I)
- R 5 ⁇ in the formula R 5 ⁇ R 9 are each (I) R Same as 9 .
- the compound represented by the general formula (VI) is obtained by reacting the aldehyde compound represented by the general formula (II) described in the production method 1 and the aromatic compound represented by the general formula (III).
- it can be synthesized by other known methods. For example, it can be synthesized by the method described in Tetrahedron, 63, (2007), 474, and Molecules, 1999, 4, M113.
- the general formula (IV), is the same as R 3 and R 4 in the R 3 and R 4 each general formula (I), X represents a fluorine atom, a chlorine atom, a bromine atom, a halogen atom selected from iodine atom It is.
- R 4 is the same as R 4 in formula (I).
- the compound of the present invention can be obtained by a simple reaction of only one step using a known reaction called nucleophilic addition of a hydroxy group. Can be synthesized.
- reaction temperature of these reactions it is desirable to carry out at 25 ° C to 120 ° C. In such a temperature range, the reaction is not slow, and the compound of the present invention can be obtained in good yield.
- the reaction pressure for these reactions is not particularly limited, but is preferably from normal pressure to 0.1 MPaG, more preferably normal pressure.
- the reaction time for these reactions is usually 1 to 24 hours.
- the reaction is performed by adding a basic compound for the purpose of improving the progress of the reaction by neutralizing by-produced hydrogen halide. Can do.
- a basic compound for the purpose of improving the progress of the reaction by neutralizing by-produced hydrogen halide.
- the basic compound is preferably a tertiary amine compound, and particularly preferably pyridine or triethylamine can be used.
- the use of a catalyst is not essential, but may be added to improve the reaction rate.
- the catalyst lithium chloride, lithium hydroxide, dibutyltin dilaurate, or the like can be used.
- a benzyloxycarbonyl) amine compound is obtained.
- the nitrogen to which R 3 in this way is R 3 obtained by are hydrogen atom N-(alpha-aromatic-substituted-2-nitro-4,5-dialkoxy benzyloxycarbonyl) amine compound are bonded Since the atom has nucleophilicity, a nucleophilic substitution reaction can be performed with a halogenated alkane such as methyl halide or ethyl halide. By the reaction, an N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound in which R 3 is not a hydrogen atom can be obtained. At this time, the nucleophilic substitution reaction can be carried out more efficiently by reacting the hydrogen atom of R 3 with lithium hydride or sodium hydride to substitute with lithium or sodium.
- reaction solvent for example, an aprotic solvent such as methylene chloride or toluene can be used.
- the compound of the present invention is represented by the following general formula (VIII) by reacting a carbinol compound represented by the following general formula (VI) with a carbonyl compound represented by the following general formula (VII).
- the ester compound can be synthesized and reacted with an amine compound represented by the following general formula (IX).
- the ester compound is reacted with an amine compound represented by the general formula (IX). The reaction may be carried out without isolation.
- R 1 and R 2 are each same as R 1 and R 2 in the general formula (I), R 5 ⁇ R 9 each Formula (I The same as R 5 to R 9 in FIG.
- Z is a chlorine atom, a bromine atom, an iodine atom, a trichloromethoxy group or a 1-imidazolyl group.
- R 10 is a chlorine atom, a trichloromethoxy group, a 1-imidazolyl group, a phenoxy group, a 4-nitrophenoxy group, or a 4-cyanophenoxy group.
- R 10 is eliminated when the ester compound represented by the general formula (VIII) is reacted with the amine compound represented by the general formula (IX).
- the carbonyl compound represented by the general formula (VII) is used to convert the compound represented by the general formula (VI), which is a known compound, into N- ( ⁇ -fragrance in the compound of the present invention.
- an ester compound a compound of the general formula (VIII) having a group (substituted 2-nitro-4,5-dialkoxybenzyloxycarbonyl) group.
- an amine compound of the general formula (IX) particularly a secondary amine compound
- This production method 3 is particularly useful when it is difficult to obtain the carbamoyl chloride compound represented by the general formula (IV) in production method 1 or production method 2.
- the amount of the carbonyl compound used is not particularly limited, but in the general formula (VI) It is preferable to use 1.0 to 1.5 equivalents with respect to the carbinol compound represented.
- the ester compound represented by the general formula (VIII) can be obtained with a good yield. Moreover, it is easy to isolate the ester compound represented by the general formula (VIII) from the reaction mixture.
- the amount of the amine compound used is not particularly limited, but is 1.0 to 1 with respect to the ester compound. It is preferable to use 2 equivalents.
- the amine compound is used in such a range, the compound of the present invention can be obtained in a good yield, and the amount of the amine compound mixed when the compound of the present invention represented by the general formula (I) is isolated. Can be reduced.
- the reaction temperature for these reactions is not particularly limited, but it is preferably from -10 ° C to 120 ° C, more preferably from 0 to 80 ° C. In such a temperature range, the reaction is not slow, and the compound of the present invention can be obtained in good yield.
- the reaction pressure of these reactions is not particularly limited, but is preferably from normal pressure to 0.1 MPaG, more preferably normal pressure.
- reaction time of the carbinol compound and the carbonyl compound is usually 1 to 24 hours
- reaction time of the carbonate compound obtained by the reaction and the amine compound is usually 1 to 24 hours.
- a basic compound can be added to carry out the reaction for the purpose of improving the progress of the reaction.
- the basic compound is preferably a tertiary amine compound, and particularly preferably pyridine or triethylamine can be used.
- the use of a catalyst is not essential, but may be added to improve the reaction rate.
- a catalyst 4- (dimethylamino) pyridine, 2- (dimethylamino) pyridine, or the like can be used.
- the use of a catalyst is not essential, but it may be added to improve the reaction rate.
- a catalyst 1-hydroxybenzotriazole, 1-hydroxy-7-azabenzotriazole and the like can be used.
- reaction solvent for example, an aprotic solvent such as methylene chloride, N, N-dimethylacetamide, or toluene can be used.
- the melting point of this compound was 176 ° C.
- the UV absorption spectrum of this compound is shown in FIG. 3 (1 ⁇ 10 ⁇ 4 mol / L acetonitrile solution). According to the UV spectrum, this compound was found to have an absorption at 405 nm. When TG of this compound was measured, the 5% weight reduction temperature was 209 ° C. (FIG. 4).
- Example 2 ⁇ Synthesis of N- ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) morpholine> 9.6 g of slightly yellow crystals were obtained in the same manner as in Example 1 except that 7.5 g of morpholine carbonyl chloride was used instead of cyclohexyl isocyanate.
- reaction solution is concentrated, and the obtained solid is dissolved in methylene chloride (30 ml), and then washed with saturated brine (20 ml) and water (20 ml).
- methylene chloride layer is concentrated and reconstituted from ethanol. Crystallization gave 0.19 g of slightly yellow crystals.
- reaction solution was put into 1.5 L of ice water and stirred until the ice melted, then suction filtration was performed, and the resulting solid was washed with water.
- the solid was extracted with ethyl acetate, and the organic layer was dehydrated with sodium sulfate and then concentrated with an evaporator to obtain 11.2 g of a yellow solid.
- ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyl-4-nitrophenyl carbonate 4.5 g, 1-hydroxy-7-azabenzotriazole (HOAt) 0.4 g, cis-2,6-dimethylpiperidine 6.
- 7 g and 50 ml of dehydrated N, N-dimethylacetamide were placed in a 300 ml flask, stirred at 60 ° C. for 3 hours under a nitrogen stream, and then stirred at 70 ° C. for 1 hour.
- the reaction solution was put into 1.4 L of 1 wt% sodium hydrogen carbonate, and the precipitated solid was suction filtered. The solid was washed with 1 wt% sodium bicarbonate until the filtrate became colorless and transparent, and then washed with water.
- the obtained solid was transferred to an Erlenmeyer flask, 200 ml of ethyl acetate was added, dehydrated with sodium sulfate, and concentrated with an evaporator.
- the obtained solid was purified by medium pressure preparative chromatography using a mixed solvent of hexane and ethyl acetate (YFLC-Eprep manufactured by Yamazen Co., Ltd.), and the fraction was concentrated to obtain a solid having a HPLC purity of 97.2 area%. Of 3.6 g was obtained.
- This compound was identified by 1 H-NMR (1.0 ppm d 3H —CH 3 , 1.3 ppm d 3H —CH 3 , 1.4-1.9 ppm m 6H —CH 2 —, 3.9 ppm s 6H OCH 3 , 3.9 ppm s 6H OCH 3 , 4.4 ppm m 2H —CH—N, 7.1 ppm s 1H CH—O, 7.2-7.7 ppm 7H aromatic CH).
- Example 6 ⁇ Synthesis of N- ( ⁇ - (4-nitrophenyl) -2-nitro-4,5-dimethoxybenzyloxycarbonyl) -2,6-dimethylpiperidine> The same as Example 5 except that ⁇ - (4-nitrophenyl) -2-nitro-4,5-dimethoxybenzyl alcohol was used instead of ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyl alcohol. By operation, N- ( ⁇ - (4-nitrophenyl) -2-nitro-4,5-dimethoxybenzyloxycarbonyl) -2,6-dimethylpiperidine was synthesized (isolation yield 33%).
- This compound was identified by 1 H-NMR (1.3 ppm d 6H —CH 3 , 1.4-1.9 ppm m 6H —CH 2 —, 3.7 ppm s 6H OCH 3 , 4.0 ppm s 6H OCH 3 4.3 ppm m 2H —CH—N, 6.7 ppm s 2H aromatic CH, 7.7 ppm s 2H aromatic CH, 7.9 ppm s 1H CH—O).
- Example 9 ⁇ Measurement of optical resolution> 1.0 mg of N- ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) cyclohexylamine obtained in Example 1 was weighed into a quartz NMR tube using an electronic balance, and deuterated acetonitrile was used. 0.5 mL was added and dissolved.
- N- ( ⁇ -phenyl-2-nitro-4,5-dimethoxybenzyloxycarbonyl) cyclohexylamine in a wavelength region of i-line (365 nm) or more is obtained.
- UVD-S365 Receiver: UVD-S365), 470 J / cm 2 (h-line conversion: UV illuminance meter: UIT-101 manufactured by Ushio Inc., receiver: UVD-405PD), 0 J / cm 2 after passing through the filter (i-line conversion: Ultraviolet illuminance meter: UIT-150 manufactured by Ushio Electric Co., Ltd., light receiver: UVD-S365), 160 J / cm 2 (h-ray conversion: UV illuminance meter: UIT-101 manufactured by Ushio Electric Co., Ltd., photoreceiver: UVD-405PD) Irradiation was set as follows.
- Fig. 6 shows the transmittance curves of Filter 1 and Filter 2.
- the evaluation results of photodegradability are shown in Table 1 below.
- Example 10 to 15 The same procedure as in Example 9 was used except that the photobase generator (N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound) shown in Table 1 below was used. Photodegradability was evaluated. The results are shown in Table 1 below.
- the N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound of the present invention has a filter 2 that does not transmit light with a wavelength of 380 nm or less including i-line. It turns out that it decomposes
- the N- ( ⁇ -aromatic substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl) amine compound of the present invention Is considered to be decomposed by irradiation with light having a wavelength of 405 nm, that is, h rays to generate a base.
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Abstract
Description
しかしながら、特許文献1では、超高圧水銀灯(波長:主に280~600nm)を用いた場合の塩基の発生について開示されたのみである。特許文献1に開示された光塩基発生剤がi線あるいはh線により塩基を発生するかについては、特許文献1に明示の記載はない。
R3及びR4はそれぞれ独立に水素原子、置換基を有してもよい炭素数1~12のアルキル基または置換基を有してもよい炭素数6~12のアリール基を示し、R3およびR4の少なくとも1つは水素原子ではなく、R3とR4とが連結してヘテロ原子を含んでもよい環状構造を形成してもよく、
R5~R9はそれぞれ独立に水素原子、炭素数1~12のアルキル基、炭素数6~12のアリール基、炭素数1~12のアルコキシ基、ハロゲン原子、シアノ基、アミノ基、炭素数1~12のアルキルアミノ基、炭素数1~12のアシルオキシ基、ニトロ基、または炭素数1~12のアシル基を示す。)。
上記一般式(III)において、R5~R9はそれぞれ前記一般式(I)におけるR5~R9と同様であり、Mは金属を含有する置換基であり、その金属は、Mg、Zn、Li、SnまたはCuであり、
上記一般式(IV)において、R3およびR4はそれぞれ前記一般式(I)におけるR3およびR4と同様であり、Xはフッ素原子、塩素原子、臭素原子、ヨウ素原子より選ばれるハロゲン原子である。)。
上記一般式(III)において、R5~R9はそれぞれ前記一般式(I)におけるR5~R9と同様であり、Mは金属を含有する置換基であり、その金属は、Mg、Zn、Li、SnまたはCuであり、
上記一般式(V)において、R4は前記一般式(I)におけるR4と同様である。)。
上記一般式(IV)において、R3およびR4はそれぞれ前記一般式(I)におけるR3およびR4と同様であり、Xはフッ素原子、塩素原子、臭素原子、ヨウ素原子より選ばれるハロゲン原子である。)。
上記一般式(V)において、R4は前記一般式(I)におけるR4と同様である。)。
上記一般式(VII)において、Zは塩素原子、臭素原子、ヨウ素原子、トリクロロメトキシ基または1-イミダゾリル基であり、
上記一般式(VII)および(VIII)において、R10は塩素原子、トリクロロメトキシ基、1-イミダゾリル基、フェノキシ基、4-ニトロフェノキシ基または4-シアノフェノキシ基であり、
上記一般式(IX)において、R3およびR4はそれぞれ前記一般式(I)におけるR3およびR4と同様である。)。
[11]前記一般式(VII)で示される化合物が、ホスゲン、クロロ蟻酸トリクロロメチル、トリホスゲン、カルボニルジイミダゾール、クロロ蟻酸-p-ニトロフェニルあるいはクロロ蟻酸-p-シアノフェニルであることを特徴とする上記[10]に記載のN-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物の製造方法。
本発明のN-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物(以下単に本発明の化合物とも言う)は、下記一般式(I)で表される。
上記一般式(I)において、R1及びR2はそれぞれ独立に置換基を有してもよい炭素数1~12のアルキル基または置換基を有してもよい炭素数6~12のアリール基を示し、R1とR2とが連結して置換基を有してもよい炭素数1~12のアルキレン基または置換基を有してもよい炭素数6~12のアリーレン基を形成してもよい。OR1およびOR2はアルコキシ基を構成し、このようなアルコキシ基がニトロベンジル基に導入されていることにより、一般式(I)で表される化合物が吸収する光の波長が長くなっている。その結果、本発明の化合物はh線を吸収して塩基を発生することができる。
上記一般式(I)において、R3及びR4はそれぞれ独立に水素原子、置換基を有してもよい炭素数1~12のアルキル基または置換基を有してもよい炭素数6~12のアリール基を示し、R3およびR4の少なくとも1つは水素原子ではなく、R3とR4とが連結してヘテロ原子を含んでもよい環状構造を形成してもよい。
上記一般式(I)において、R5~R9はそれぞれ独立に水素原子、炭素数1~12のアルキル基、炭素数6~12のアリール基、炭素数1~12のアルコキシ基、ハロゲン原子、シアノ基、アミノ基、炭素数1~12のアルキルアミノ基、炭素数1~12のアシルオキシ基、ニトロ基または炭素数1~12のアシル基を示す。
本発明の化合物を具体的に例示すると、以下のとおりである。
<製造方法1>
本発明の化合物は、Grignard反応剤などの炭素求核剤を利用した方法により製造することができる。具体的には、下記一般式(II)で表されるアルデヒド化合物と下記一般式(III)で表される芳香族化合物とを反応させた後、得られた生成物を下記一般式(IV)で表される化合物と反応させることにより、本発明の化合物を製造することができる。一般式(II)で表されるアルデヒド化合物と一般式(III)で表される芳香族化合物とを反応させてできる生成物を単離した後に、該生成物を一般式(IV)で表される化合物と反応させてもよいが、単離することなく反応させることもできる。
また、本発明の化合物は、下記一般式(VI)で表されるカルビノール化合物と、下記一般式(IV)で表される化合物または下記一般式(V)で表されるイソシアネート化合物とを反応させることにより製造することができる。
さらに、本発明の化合物は、下記一般式(VI)で表されるカルビノール化合物と、下記一般式(VII)で表されるカルボニル化合物とを反応させて、下記一般式(VIII)で表されるエステル化合物を合成し、このエステル化合物を下記一般式(IX)で示されるアミン化合物と反応させることにより製造することができる。この場合、前記カルビノール化合物と下記一般式(VII)で表されるカルボニル化合物とを反応させてできるエステル化合物を単離した後に、エステル化合物を一般式(IX)で表されるアミン化合物と反応させてもよいが、単離することなく反応させることもできる。
以上説明した製造方法1~3により得られた本発明の化合物の回収(精製)方法に特に制限はなく、カラムクロマトグラフィー、抽出、再結晶、再沈殿などの精製手段により、良好な純度をもって本発明の化合物を回収(精製)することができる。
<N-(α-フェニル-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)シクロヘキシルアミンの合成>
2-ニトロ-4,5-ジメトキシベンズアルデヒド10.9g(東京化成製試薬)を無水テトラヒドロフラン150ml中に溶解し、窒素気流中で攪拌しながら0℃に冷却し、臭化フェニルマグネシウムのテトラヒドロフラン溶液50ml(1mol/L Aldrich製)を15分かけて滴下した。
<N-(α-フェニル-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)モルホリンの合成>
シクロヘキシルイソシアネートの代わりにモルホリンカルボニルクロライド7.5gを用いた以外は実施例1と同様の操作により、微黄色結晶を9.6g得た。
<N-(2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)シクロヘキシルアミンの合成>
特開平6-345711号公報を参考にして、6.24gの2-ニトロ-4,5-ジメトキシベンジルアルコールと5.13gのシクロヘキシルイソシアネートから9.53gのN-(2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)シクロヘキシルアミンを得た。この化合物のUV吸収スペクトルを図3に示す(1×10-4mol/Lアセトニトリル溶液)。この化合物は、405nmの吸光度が実施例1及び実施例2の化合物よりも弱いことがわかった。
<N-(α-フェニル-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)シクロヘキシルアミンの合成>
既知化合物である、α-フェニル-2-ニトロ-4,5-ジメトキシベンジルアルコールを、Tetrahedron, 63, (2007), 474、およびMolecules, 1999, 4, M113を参考に合成した。α-フェニル-2-ニトロ-4,5-ジメトキシベンジルアルコール0.26gとシクロヘキシルイソシアネート0.17gを、ジブチル錫ジラウレート0.06gと共に脱水トルエン(30ml)中に添加し、還流下に加熱しながら10時間反応させた。
<N-(α-フェニル-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)シクロヘキシルメチルアミンの合成>
100mlの二口フラスコに実施例1で合成したN-(α-フェニル-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)シクロヘキシルアミン1.25gとテトラヒドロフラン(19.8ml)とジメチルホルムアミド(2.0ml)を入れて溶解した。氷で冷却しながら水素化ナトリウム0.144gを投入した。その後、ヨウ化メチル(0.56ml)を投入し、0℃で10分間撹拌後、加熱還流を7時間行った。
<N-(α-フェニル-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)-2,6-ジメチルピペリジンの合成>
200mlの二口フラスコにα-フェニル-2-ニトロ-4,5-ジメトキシベンジルアルコール5.8g、クロロ蟻酸-p-ニトロフェニル4.4g、N,N-ジメチル-4-アミノピリジン(DMAP)0.1gを入れ、窒素気流下、氷で冷やしながら脱水N,N-ジメチルアセトアミド80mlとトリエチルアミン4.1gの混合液を滴下し、3時間攪拌した。その後、室温で2時間攪拌後、クロロ蟻酸ニトロフェニル1.4gを追添し、反応溶液を一晩攪拌した。
<N-(α-(4-ニトロフェニル)-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)-2,6-ジメチルピペリジンの合成>
α-フェニル-2-ニトロ-4,5-ジメトキシベンジルアルコールを用いる代わりにα-(4-ニトロフェニル)-2-ニトロ-4,5-ジメトキシベンジルアルコールを用いた以外は実施例5と同様の操作により、N-(α-(4-ニトロフェニル)-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)-2,6-ジメチルピペリジンを合成した(単離収率33%)。この化合物は1H-NMRにて同定した(1.1ppm d 3H -CH3、1.3ppm d 3H -CH3、1.4-1.9ppm m 6H -CH2-、3.9ppm s 3H OCH3、3.9ppm s 3H OCH3、4.4ppm m 2H -CH-N、7.1ppm s 1H CH-O、7.5-8.2ppm 6H 芳香族C-H)。
<N-(α-(2-ニトロ-4,5-ジメトキシフェニル)-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)-2,6-ジメチルピペリジンの合成>
α-フェニル-2-ニトロ-4,5-ジメトキシベンジルアルコールを用いる代わりにα-(2-ニトロ-4,5-ジメトキシフェニル)-2-ニトロ-4,5-ジメトキシベンジルアルコールを用いた以外は実施例5と同様の操作により、N-(α-(2-ニトロ-4,5-ジメトキシフェニル)-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)-2,6-ジメチルピペリジンを合成した(単離収率16%)。この化合物は1H-NMRにて同定した(1.3ppm d 6H -CH3、1.4-1.9ppm m 6H -CH2-、3.7ppm s 6H OCH3、4.0ppm s 6H OCH3、4.3ppm m 2H -CH-N、6.7ppm s 2H 芳香族C-H、7.7ppm s 2H 芳香族C-H、7.9ppm s 1H CH-O)。
<N-(α-フェニル-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)ピペリジンの合成>
シス‐2,6-ジメチルピペリジンを用いる代わりにピペリジンを用いた以外は実施例5と同様の操作により、N-(α-フェニル-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)ピペリジンを合成した(単離収率16%)。この化合物は1H-NMRにて同定した(1.4-1.8ppm m 6H -CH2-、3.5ppm br 4H -CH2-N、3.9ppm s 3H OCH3、3.9ppm s 3H OCH3、7.0ppm s 1H CH-O、7.2-7.7ppm 7H 芳香族C-H)。
<光分解能の測定>
実施例1で得られたN-(α-フェニル-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)シクロヘキシルアミンを、石英製NMRチューブ中に電子天秤を用いて1.0mg秤量し、重アセトニトリル0.5mLを加え溶解させた。
下記表1に示す光塩基発生剤(N-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物)を用いた以外は、実施例9と同様の操作により光分解性の評価を行った。結果を下記表1に示す。
比較例1で合成した光塩基発生剤(N-(2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)シクロヘキシルアミン)を用いた以外は、実施例9と同様の操作により光分解性の評価を行った。結果を下記表1に示す。
Claims (11)
- 下記一般式(I)で表されるN-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物:
R3及びR4はそれぞれ独立に水素原子、置換基を有してもよい炭素数1~12のアルキル基または置換基を有してもよい炭素数6~12のアリール基を示し、R3およびR4の少なくとも1つは水素原子ではなく、R3とR4とが連結してヘテロ原子を含んでもよい環状構造を形成してもよく、
R5~R9はそれぞれ独立に水素原子、炭素数1~12のアルキル基、炭素数6~12のアリール基、炭素数1~12のアルコキシ基、ハロゲン原子、シアノ基、アミノ基、炭素数1~12のアルキルアミノ基、炭素数1~12のアシルオキシ基、ニトロ基、または炭素数1~12のアシル基を示す。)。 - 前記一般式(I)において、R3が水素原子であることを特徴とする請求項1に記載のN-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物。
- 前記一般式(I)において、R1およびR2がメチル基であり、R3とR4とが連結してモルホリル基を形成し、R5~R9がすべて水素原子であることを特徴とする請求項1に記載のN-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物。
- 前記一般式(I)において、R1およびR2がメチル基であり、R3が水素原子であり、R4がシクロヘキシル基であり、R5~R9がすべて水素原子であることを特徴とする請求項1または2に記載のN-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物。
- 前記一般式(I)で示される化合物が、N-(α-フェニル-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)-2,6-ジメチルピペリジン、N-(α-(4-ニトロフェニル)-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)-2,6-ジメチルピペリジン、N-(α-(2-ニトロフェニル)-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)-2,6-ジメチルピペリジン、N-(α-(2-ニトロ-4,5-ジメトキシフェニル)-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)-2,6-ジメチルピペリジン、N-(α-フェニル-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)-ピペリジンおよびN-(α-(2-ニトロ-4,5-ジメトキシフェニル)-2-ニトロ-4,5-ジメトキシベンジルオキシカルボニル)-ピペリジンからなる群より選ばれる少なくとも1種の化合物であることを特徴とする請求項1に記載のN-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物。
- 下記一般式(II)で表されるアルデヒド化合物と下記一般式(III)で表される芳香族化合物とを反応させた後、該反応により得られた化合物を下記一般式(IV)で表される化合物と反応させることを特徴とする請求項1に記載のN-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物の製造方法:
上記一般式(III)において、R5~R9はそれぞれ前記一般式(I)におけるR5~R9と同様であり、Mは金属を含有する置換基であり、その金属は、Mg、Zn、Li、SnまたはCuであり、
上記一般式(IV)において、R3およびR4はそれぞれ前記一般式(I)におけるR3およびR4と同様であり、Xはフッ素原子、塩素原子、臭素原子、ヨウ素原子より選ばれるハロゲン原子である。)。 - 下記一般式(II)で表されるアルデヒド化合物と下記一般式(III)で表される芳香族化合物とを反応させた後、該反応により得られた化合物を下記一般式(V)で表されるイソシアネート化合物と反応させることを特徴とする請求項2に記載のN-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物の製造方法:
上記一般式(III)において、R5~R9はそれぞれ前記一般式(I)におけるR5~R9と同様であり、Mは金属を含有する置換基であり、その金属は、Mg、Zn、Li、SnまたはCuであり、
上記一般式(V)において、R4は前記一般式(I)におけるR4と同様である。)。 - 下記一般式(VI)で表されるカルビノール化合物と下記一般式(VII)で表されるカルボニル化合物とを反応させて、下記一般式(VIII)で表されるエステル化合物を合成し、
該エステル化合物を下記一般式(IX)で示されるアミン化合物と反応させることを特徴とする請求項1に記載のN-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物の製造方法:
上記一般式(VII)において、Zは塩素原子、臭素原子、ヨウ素原子、トリクロロメトキシ基または1-イミダゾリル基であり、
上記一般式(VII)および(VIII)において、R10は塩素原子、トリクロロメトキシ基、1-イミダゾリル基、フェノキシ基、4-ニトロフェノキシ基または4-シアノフェノキシ基であり、
上記一般式(IX)において、R3およびR4はそれぞれ前記一般式(I)におけるR3およびR4と同様である。)。 - 前記一般式(VII)で示される化合物が、ホスゲン、クロロ蟻酸トリクロロメチル、トリホスゲン、カルボニルジイミダゾール、クロロ蟻酸-p-ニトロフェニルあるいはクロロ蟻酸-p-シアノフェニルであることを特徴とする請求項10に記載のN-(α-芳香族置換-2-ニトロ-4,5-ジアルコキシベンジルオキシカルボニル)アミン化合物の製造方法。
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CN2009801389531A CN102171181A (zh) | 2008-10-02 | 2009-10-01 | N-(α-芳香基取代-2-硝基-4,5-二烷氧基苄基氧基羰基)胺化合物及其制造方法 |
US13/121,048 US20110172421A1 (en) | 2008-10-02 | 2009-10-01 | N-(alpha-AROMATIC GROUP-SUBSTITUTED-2-NITRO-4,5-DIALKOXYBENZYLOXYCARBONYL)AMINE COMPOUND AND PROCESS FOR PRODUCING THE SAME |
KR1020117009867A KR101303540B1 (ko) | 2008-10-02 | 2009-10-01 | N-(α-방향족 치환-2-니트로-4,5-디알콕시벤질옥시카르보닐)아민 화합물 및 그 제조 방법 |
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JP2014162778A (ja) * | 2013-02-27 | 2014-09-08 | Eiweiss Kk | 化合物、その製造方法および光塩基発生剤組成物 |
CN106154747A (zh) * | 2015-05-15 | 2016-11-23 | 罗门哈斯电子材料韩国有限公司 | 光碱产生剂以及包含其的光致抗蚀剂组合物 |
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CN106154747A (zh) * | 2015-05-15 | 2016-11-23 | 罗门哈斯电子材料韩国有限公司 | 光碱产生剂以及包含其的光致抗蚀剂组合物 |
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