Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C47/00—Compounds having —CHO groups
  • C07C47/38—Unsaturated compounds having —CHO groups bound to carbon atoms of rings other than six—membered aromatic rings
  • C07C47/44—Unsaturated compounds having —CHO groups bound to carbon atoms of rings other than six—membered aromatic rings polycyclic
  • C07C47/445—Unsaturated compounds having —CHO groups bound to carbon atoms of rings other than six—membered aromatic rings polycyclic containing a condensed ring system
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
  • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
  • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
  • C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
  • C07C45/69—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by addition to carbon-to-carbon double or triple bonds
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
  • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
  • B01J21/12—Silica and alumina
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C47/00—Compounds having —CHO groups
  • C07C47/38—Unsaturated compounds having —CHO groups bound to carbon atoms of rings other than six—membered aromatic rings
  • C07C47/42—Unsaturated compounds having —CHO groups bound to carbon atoms of rings other than six—membered aromatic rings with a six-membered ring

Definitions

• the present invention relates to a method for producing a cyclic unsaturated aldehyde, and more particularly to a raw material for a traxion oil, a raw material for an unsaturated polyester resin, and a phenol.
• the cyclic unsaturated aldehyde which is useful as a functional resin such as a polyester resin modifier or a functional resin monomer, is not corroded by the Diels-Alder reaction without causing corrosion of the equipment.
• the present invention also relates to an industrially advantageous method for efficiently and inexpensively producing without any post-reaction treatment.
• Cyclic unsaturated aldehydes include, for example, raw materials for traxion oil, raw materials for unsaturated polyester resins, phenolic resin modifiers, and monomers for functional resins. These compounds are useful as functional chemicals such as
• the fluid for the tractive drive is a tractive drive device (friction drive device by rolling contact), such as a continuously variable transmission for automobiles, Fluids used in industrial continuously variable transmissions, etc., require a high friction coefficient, stability against heat and oxidation, and economic efficiency.
• a fluid for a transaction drive for example, 2-holmyl-methyl-bicyclo [2.2.1] hept-5-ene 2-Hormyl dimethyl bicyclo [2.2.1] hept-5-benzene and other cyclic unsaturated aldehydes as synthetic intermediates and hydrocarbon compounds with a norbornane skeleton ( Unexamined Japanese Patent Application Publication No.
• 2-holminole-1-methyl bicyclo [2.2.2] hepto 5-ene or 2-holmin-1-methyl bicyclo [2.2.2] hepto-5 The diene is generally obtained by the Diels-Alder reaction of cyclopentene or methylcyclopentene with crotonaldehyde, and No. 5-methyl-bicyclo [2.2.2] oct-5-ene or 2-holmi-no-methyl bicyclo [2.2.2.2] oct. In general, it can be obtained by reacting 1,3-cyclohexagen or methyl 1,3-cyclohexagen with crotane aldehyde in a Diels-Alda reaction.
• examples of a reaction using a catalyst include a reaction using a catechol boron bromide catalyst at 178 ° C for 1.5 hours (yield: 70%) and a centrifugation method using a catalyst.
• these methods are homogeneous reactions using a solvent at a low temperature using an expensive catalyst, they are not industrially used at all.
• heterogeneous solid catalysts in the Diels-Alder reaction examples include cyclopentene, acryloline, acrylic acid or acrylonitrile.
• Example of the reaction of phenol with a silica, alumina, and cellulose catalyst (Angew. Chem.), Vol. 93, p. 1 year)] an example in which cyclopentene and genotonic acid are reacted with silica and alumina catalysts
• safflower oil and maleic anhydride are reacted using a silica alumina catalyst [[: Oil Chemistry Vol. 27, pp.
• the present invention produces a cyclic unsaturated aldehyde by subjecting the cyclic conjugated gen compound to an aldehyde having a lower alkyl group at the 3-position of the lactone aldehyde in a Diels-Alda reaction.
• the purpose of the present invention is to provide an industrially advantageous method for producing cyclic unsaturated aldehydes at low cost and efficiently without causing corrosion of equipment, requiring no post-reaction treatment. It is assumed that
• a cyclic conjugated gen compound is represented by the general formula (I):
• R-CH CH-CHHO (I)
• R represents an alkyl group having 1 to 3 carbon atoms.
• the cyclic conjugated gen compound used as one of the starting materials is preferably a compound having 5 to 20 ring carbon atoms, and is particularly easily available, reactive, and obtainable. From the viewpoint of usefulness of the product, those having 5 or 6 carbon atoms in the ring are preferred.
• the cyclic conjugated diene compound has a suitable substituent on the ring, such as a methyl group, an ethyl group, an n-propyl group, Lower alkyl groups such as isopropyl group, methoxy group, ethoxy group, n-propoxy group, lower alkoxy group such as isopropoxy group, chlorine atom, fluorine atom It may have a halogen atom such as an element atom or a bromine atom.
• a suitable substituent on the ring such as a methyl group, an ethyl group, an n-propyl group, Lower alkyl groups such as isopropyl group, methoxy group, ethoxy group, n-propoxy group, lower alkoxy group such as isopropoxy group, chlorine atom, fluorine atom It may have a halogen atom such as an element atom or a bromine atom.
• One of these substituents may be introduced, or a pluralit
• cyclic conjugated gen compounds include: cyclin pentagen; methylencyclopentane; ethynolecyclopentagen n-provir Cyclopent Even Gen; Isoprovir Cyclopentene Gen 1, 3 — Cyclohexane Gen; Methylenole 1, 3 — Cyclohexane Genethyl 1, 3 — Cyclohexagen; n—Propyl 1 and 3 — Cycopena hexogen; Isopropyl 1 and 3— Cyclohexagen You. Of these, cyclopentagen; methylcyclopentagen; 1,3-cyclohexane and methyl-1,3-cyclocyclogen are particularly preferred. You.
• the substitution position of the alkyl group in these cyclic conjugated gen compounds is not particularly limited, and may be any position.
• the aldehyde used as another raw material is represented by the general formula (I)
• R-CH CH-CHHO (I)
• R represents an alkyl group having 1 to 3 carbon atoms.
• An acrolein represented by the formula (1) has an alkyl group having 1 to 3 carbon atoms at the 3-position.
• examples of the alkyl group having 1 to 3 carbon atoms represented by R include a methyl group, an ethyl group, an n-propyl group, and an isopropyl group.
• aldehyde represented by the above general formula (I) examples include 3—methylacrolein (crotonaldehyde), 3—ethylacrolein, and 3—n Propylene chloride and 3-isopropyl chlorin. Among them, Crotonaldehyde is preferred from the viewpoints of easy availability, reactivity, and usefulness of the obtained product.
• the cyclic conjugated gen compound is subjected to a Diels-Alder reaction with an aldehyde represented by the general formula (I) to produce a cyclic unsaturated aldehyde.
• the catalyst is used as a catalyst.
• a solid acid examples include silica alumina, silica magnesia, alumina porcelain, activated clay, acid clay, monmorillonite solid phosphoric acid, cation exchange resin, and the like.
• silica alumina is particularly preferred in terms of catalytic activity and the like.
• These solid acids are desirably subjected to a drying treatment before use in order to further improve the catalytic activity.
• the drying treatment method is not particularly limited, and various methods can be used. For example, a method of heating at a temperature of about 150 to 250 ° C. for about 1 to 20 hours, or a method of dispersing a solid acid in an appropriate solvent and heating to evaporate water with the solvent is used. Used. These solid acids may be used alone or in combination of two or more.
• the reaction method is not particularly limited, and may be either a fixed bed flow method or a batch method.
• Examples of the method of contacting the cyclic conjugated diene compound, the aldehyde, and the catalyst include (1) a method in which a mixture of a cyclic conjugated gen compound and an aldehyde in advance is brought into contact with the catalyst; A method of adding aldehyde to a mixture of a gen compound and a catalyst, or (3) mixing an aldehyde with a catalyst For example, a method of adding a cyclic conjugated gen compound to a product can be used.
• the reaction temperature is not particularly limited, but is usually selected from the range of 0 to 150. If the temperature is lower than 0 ° C, the reaction rate is too slow to be practical, and if it exceeds 150 ° C, the amount of by-products increases and the desired cyclic unsaturated aldehyde is produced. In some cases, the decrease in the yield of the head may be large.
• the preferred reaction temperature is in the range of 30 to 100 ° C. in view of the reaction rate and the yield.
• the amount of catalyst varies depending on the type of catalyst and the reaction temperature, and cannot be determined unconditionally.However, in view of the reaction speed and economy, the batch method requires the The range is preferably from 0.1 to 100% by weight, more preferably from 1 to 50% by weight.
• WH SV weight hourly space velocity
• WH SV weight hourly space velocity
• the reaction pressure is not particularly limited, but the reaction is usually performed under normal pressure.
• the reaction is generally carried out without a solvent, but if necessary, a solvent inert to the reaction may be used as appropriate.
• cyclopentadene or methylcyclopentadene is used as an aldehyde represented by the general formula (I), particularly as a cyclic conjugated gen compound.
• 1, 3 — cyclohexadiene is an aldehyde represented by the general formula (I) 2-honolemi-ru-methyl-bicyclo [2.2.2] oct 5-en or 2-holmil-dimethyl Visible mouth [2.2.2] It is suitably used when manufacturing oct-5-ene.
• cyclic unsaturated aldehydes of the above product include 2-holmyl 3-methyl bicyclo [2.2.1] hept 5-ene, 2-holmyl 1-3,7-dimethyl bicyclo [2.2.1] heptoto 5 -en, 2 -holminole 3 -methyl bicyclo [2.2.2] octet 5-ene 2-holmil 3, 7-dimethyl bicyclo [2.2.2] octane 5 ene.
• Comparative Example 1 silica alumina was used as the catalyst (manufactured by JGC Chemicals, Inc.). N633HN catalyst] The reaction was carried out in the same manner as in Comparative Example 1 except for using 10 g. Table 1 shows the reaction results after 3 hours.
• Example 3-A reaction was carried out in the same manner as in Comparative Example 1 except that 10 g of monmorillonite (manufactured by Aldrich) was used as the catalyst. Table 1 shows the reaction results after 3 hours.
• Example 7 in place of the raw material mixture having a molar ratio of chromanaldehyde to cyclopentenegen of 2: 1, the molar ratio of chromanaldehyde to cyclopentenegen was changed. The reaction was carried out in the same manner as in Example 7, except that the raw material mixture of 1: 1.2 was used.
• the conversion based on clonal aldehyde is more than 98%, and the selection of 2-honolemil-3-methylbicyclo [2.2.1] hept-15-diene
• the rates were more than 97% on a Clone aldehyde basis and more than 97% on a Cyclopentene basis.
• Comparative Example 4 instead of 1 g of dried silica gel, activated alumina for column chromatography dried at 200 ° C. for 8 hours [manufactured by Wako Pure Chemical Industries, Ltd. The reaction was carried out in the same manner as in Comparative Example 4 except that Table 2 shows the reaction results for 3 hours.
• Comparative Example 4 instead of 1 g of the dried silica gel, silica alumina dried at 200 ° C. for 8 hours [Nikka Kagaku Co., Ltd., N633 L catalyst The reaction was carried out in the same manner as in Comparative Example 4 except that 1 g was used. Table 2 shows the reaction results after 3 hours.
• Example 2 and Example 9 and Example 5 and Example 10 the dry solid acid catalyst was not used.
• the catalytic activity is higher than that of the dried one, resulting in higher conversion.
• Example 1 In Example 9, instead of the raw material having a molar ratio of chlorotonaldehyde / cyclopentenegen of 21, the raw material having a molar ratio of chlorotonaldehyde methylcyclopentagen of .2 Z1 was used. The reaction was carried out in the same manner as in Example 9, except that was used. Table 3 shows the reaction results after 3 hours.
• Example 9 instead of the raw material having a molar ratio of chromanaldehyde / cyclopentadiene of 2/1, the molar ratio of chromanaldehyde 1,3—cyclohexadiene was 2%.
• the reaction was carried out in the same manner as in Example 9, except that the reaction was carried out at 45 ° C using the raw material No. 1.
• Table 3 shows the reaction results after 3 hours.
• cyclic unsaturated aldehyde can be manufactured inexpensively and efficiently by Diels-Alder reaction, without corroding equipment, and without requiring post-reaction treatment. . Therefore, the method of the present invention This is a very industrially advantageous method.
• the cyclic unsaturated aldehyde obtained by the method of the present invention includes, for example, a raw material for a fraction oil, a raw material for an unsaturated polyester resin, a phenol resin modifier, and a functional group. It is useful as a functional chemical such as a resin monomer.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

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• 1995
  • 1995-06-22 JP JP7155732A patent/JPH092989A/ja active Pending
• 1996
  • 1996-06-21 CA CA002224246A patent/CA2224246A1/en not_active Abandoned
  • 1996-06-21 KR KR1019970709572A patent/KR19990028260A/ko not_active Ceased
  • 1996-06-21 US US08/973,555 patent/US5886234A/en not_active Expired - Fee Related
  • 1996-06-21 EP EP96918871A patent/EP0860421A1/en not_active Withdrawn
  • 1996-06-21 WO PCT/JP1996/001720 patent/WO1997000844A1/ja not_active Ceased

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