CN1704355A - Photochemical process for olefin synthesis of oxygen-containing compound - Google Patents
Photochemical process for olefin synthesis of oxygen-containing compound Download PDFInfo
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- CN1704355A CN1704355A CN 200410046196 CN200410046196A CN1704355A CN 1704355 A CN1704355 A CN 1704355A CN 200410046196 CN200410046196 CN 200410046196 CN 200410046196 A CN200410046196 A CN 200410046196A CN 1704355 A CN1704355 A CN 1704355A
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Abstract
The invention discloses a photochemical process for olefin synthesis of oxygen-containing compound which comprises, inducing olefin with ultraviolet light / visible light, oxygenizing in water or the mixed medium of organic / water. The olefin includes alkenylene, annular olefin, aromatic hydrocarbon and substituted alkenylene, substituted annular olefin, or substituted aromatic hydrocarbon.
Description
Technical field
The present invention relates to the photoxidation synthesis technical field, particularly the green light chemical oxidation technology of highly selective synthesizing oxygen-containing compounds.
Background technology
Along with the continuous development of world technology, environment protection and Sustainable development more and more come into one's own.In the organic synthesis field, green oxidation has caused widely especially as a kind of environmental friendliness research direction to be paid close attention in recent years.So-called green oxidation just is meant utilizes hydrogen peroxide or molecular oxygen as oxidant, the oxidizing reaction of utilizing water or other non-toxic compounds to realize as solvent.If can be under mild conditions, utilize clean sun power to make dissolved molecular oxygen activation in the solution, realize variously having that huge applications is worth and the oxidising process of potential value is then desirable more, this be because: the energy and resource that (1) sun power and molecular oxygen be cheapness, be easy to get; (2) it is comparatively gentle that photochemical reaction is compared the reaction conditions that thermal response requires, and general normal temperature and pressure gets final product down; (3) photochemically reactive selectivity is higher, is easy to control, thereby has reduced the generation of by product.
In recent years, the oxidation technology development of alkene rapidly, new metal oxide, transition metal ion such as Fe, Cu, Mn are that the complex catalysis reaction of central ion is widely used for substituting simple Fe (II)/Fe (III) catalyzer, obtained remarkable progress, the nearest catalyzed reaction that participates in of double-core iron and copper based compound particularly, the use of photoelectrocatalysis technology, and utilize molecular sieve to do aspect such as microreactor and carried out extensive trial.It is last 2000,122 that document mainly contains American Chemical Society's " JACS ", the article of 3220-3221 " hydrocarbonate activation H
2O
2Carry out the epoxidation of alkene " (Epoxidation of Alkene withBicarbonate-Activated Hydrogen Peroxide; Huirong Yao and DavidE.Richardson; .J.Am.Chem.Soc.; 2000,122,3220-3221); the reaction of this class can be carried out in the eco-friendly aqueous solution; and pH value has great application prospect in neutrality, but the special activator of reaction needed.In view of molecular sieve has unique duct effect, can significantly improve selectivity, therefore it has been carried out a large amount of research.Document has on " nature " magazine 1994,369, the article of 543-546 " molecular sieve carried manganese complex is the selectivity of catalyst olefin oxidation " (P.Gerrit, D.D.Vos, F.T.Starzyk, P.A.Jacobe, Zeolite-encapsulated Mn (II) Complexes as Catalysts forSelectiVe Alkene Oxidation, Nature, 1994,369,543-546) and " nature " magazine on 1994,370,541-544 " by the bionic catalyst of the effective cytochrome p-450 of a class of the molecular sieve carried iron complex preparation that is encapsulated in the high-polymer membrane phase " (Anefficient mimic of cytochrome P-450 from a zeolite-encaged ironcomplex in a polymer membrane, R.F.Perton, I.F.J.Vankelecom, M.J.A.Casselman, et.al., Naure, 1994,370,541-544).But these bionic catalysis systems have only only possessed the character of monooxygenase at present, promptly must realize catalytic cycle with atomic oxygens such as hydrogen peroxide.In addition, " JACS " 1994,116, the article of 1812-1820 " the selective light oxidation of alkene on molecular sieve " (Selectivephotooxidation of small alkenes by O
2With red light in zeoliteY., Blatter F, Frei H., J.Am.Chem.Soc 1994,116:1812-1820), Frei etc. use molecular sieve and select in the shape photochemical reaction, find that organic substrates and molecular oxygen can form colored title complex in the duct of NaY molecular sieve, by excited by visible light, realize the electron-transfer reaction between organism and the molecular oxygen,, just do not have the extinction characteristic of this colored complex in case form oxidation products, reaction just stops automatically, avoided over oxidation, therefore good selectivity is arranged, but the efficient of reaction has been very low.
Summary of the invention
The objective of the invention is from eco-friendly solvent, develop and utilize luminous energy to carry out the technology and the method for selective oxidation, promptly in the presence of oxygen molecule, utilize the polarizing effect and the light activated synergy of aqueous solvent molecule, the alkene highly selective is oxidized to aldehyde, ketone, epoxy compounds.
Technological core of the present invention is that alkene is under the inducing of UV-light/visible light, in water or organic/water blending agent, carry out photoxidation, can realize the high selectivity oxidation of alkene, synthesize oxygenatedchemicals, corresponding oxygenatedchemicals can be aldehyde, ketone, epoxy compounds.
Alkene of the present invention is chain alkene, end group chain alkene, replacement chain alkene, cyclic olefin, substituted cyclic alkene, fragrant alkene, substituted aroma alkene.
Of the present invention organic/the water blending agent, organic medium is aliphatic hydrocarbon, aromatic hydrocarbon, ethers, alcohols, fluoro aromatic hydrocarbon, chlorination aromatic hydrocarbon or halogenated alkane (as chloroform, tetracol phenixin, methylene dichloride, ethylene dichloride, chloro-propane, chloro-butane, methyl fuoride, fluoroethane).
Of the present invention organic/the water blending agent, the volume ratio of organic medium and water be 1000: 1 complete 1: 1000.
Oxygenant of the present invention is air, oxygen, H
2O
2It is green oxygenant.
Oxidation system of the present invention, alkene and water or organic/water blending agent have a suitable ratio, the volume ratio of alkene and medium 1: 1000 to 10: 1.
Water of the present invention or organic/water blending agent intermediate ion intensity are 0.01-10.
Water of the present invention or organic/water blending agent are acid, neutral or alkaline.
Photooxidation reaction of the present invention carries out under UV-light, visible light, artificial light or sunlight.
Of the present invention organic/the water blending agent need be by means high dispersing and mixing such as stirring.
The pressure of oxygenant oxygen of the present invention is 0.02MPa-20.0MPa, and oxidant concentration is 10
-4-10M.
The present invention a kind of photochemical method of alkene synthesizing oxygen-containing compounds, the synthetic oxygenatedchemicals has highly selective, used medium is eco-friendly solvent, used oxygenant is the green oxidation agent.
The present invention is further detailed explanation below in conjunction with embodiment.
Embodiment 1
Add 1.5 milliliters of 3.5 milliliters of entry (pH value 6.5), chloroforms in a glass reactor, vinylbenzene 100 microlitres are adjusted stirring velocity～30 commentaries on classics/min, mix, and are airtight, feed O
2, O
2Pressure is 0.08MPa, opens medium pressure mercury lamp (100W), carries out the UV irradiation, stopped reaction after 7 hours, and reaction product mainly is a phenyl aldehyde, and the selectivity 95.0% of phenyl aldehyde, other product: benzoglycols (C
6H
5CHOHCH
2OH), phenylformic acid, styrene oxide (C
6H
5CHCH
2O) etc., total amount is less than 5%, and the productive rate of phenyl aldehyde reaches 11%.
Embodiment 2
In a glass reactor, add 5 milliliters of entry (pH value 6.5), 4-methoxy styrene 50 microlitres, adjust stirring velocity～30 commentaries on classics/min, mix, airtight, feed O
2, O
2Pressure is 0.06MPa, opens medium pressure mercury lamp, carries out the UV irradiation, stopped reaction after 12 hours, and reaction product mainly is the 4-methoxybenzaldehyde, and the selectivity 98.0% of 4-methoxybenzaldehyde, the productive rate of 4-methoxybenzaldehyde reaches 11%.
Embodiment 3
In a glass reactor, add chloroform 5 milliliters of (pH value 7.0), H
2O
230%100 microlitres, vinylbenzene 100 microlitres are adjusted stirring velocity～30 commentaries on classics/min, mix, open medium pressure mercury lamp, carry out the UV irradiation, stopped reaction after 7 hours, reaction product mainly is a phenyl aldehyde, the selectivity 90.0% of phenyl aldehyde, and the productive rate of phenyl aldehyde is 6%.
Embodiment 4
In a glass reactor, add 5 milliliters of entry (pH value 3.5), vinylbenzene 100 microlitres, adjust stirring velocity～30 commentaries on classics/min, mix, airtight, bubbling air, air pressure 0.1MPa opens medium pressure mercury lamp, carries out the UV irradiation, stopped reaction after 13 hours, reaction product mainly is a phenyl aldehyde, the selectivity 95.1% of phenyl aldehyde, and the productive rate of phenyl aldehyde is 7%.
Embodiment 5
In a glass reactor, add 5 milliliters of entry (pH value 7.5), vinylbenzene 100 microlitres, adjust stirring velocity～30 commentaries on classics/min, mix, airtight, continuous aerating oxygen, oxygen pressure 0.1MPa opens medium pressure mercury lamp, carries out the UV irradiation, stopped reaction after 13 hours, reaction product mainly is a phenyl aldehyde, the selectivity 95.3% of phenyl aldehyde, and the productive rate of phenyl aldehyde is 28%.
Embodiment 6
In a glass reactor, add 1.5 milliliters of 3.5 milliliters of entry (pH value 6.5), chloroforms, H
2O
230%100 microlitres, tetrahydrobenzene 100 microlitres are adjusted stirring velocity～30 commentaries on classics/min, mix, and are airtight, open medium pressure mercury lamp (100W), carry out the UV irradiation, stopped reaction after 6 hours.Reaction product is cyclohexene oxide (C
6H
10O), 2-tetrahydrobenzene-1-ketone (C
6H
8(=O)), 2-tetrahydrobenzene-1-alcohol (C
6H
9OH) etc., cyclohexene oxide selectivity 60.1%, 2-tetrahydrobenzene-1-ketone selectivity 25.3%, 2-tetrahydrobenzene-1-alcohol selectivity 6.0%.
Embodiment 7
In a glass reactor, add 5 milliliters of entry (pH value 11.5), vinylbenzene 100 microlitres, use NaClO
4Regulating ionic strength is 1, adjusts stirring velocity～30 commentaries on classics/min, mixes, airtight, constantly aerating oxygen is opened medium pressure mercury lamp, carries out the UV irradiation, stopped reaction after 12 hours, reaction product mainly is a phenyl aldehyde, the selectivity 94.7% of phenyl aldehyde, and the productive rate of phenyl aldehyde is 23%.
Embodiment 8
In a glass reactor, add 5 milliliters of entry, vinylbenzene 100 microlitres, the pH value of regulator solution is 10, adjusts stirring velocity～30 commentaries on classics/min, mixes, airtight, constantly aerating oxygen is opened medium pressure mercury lamp, carries out the UV irradiation, stopped reaction after 12 hours, reaction product mainly is a phenyl aldehyde, the selectivity 94.3% of phenyl aldehyde, and the productive rate of phenyl aldehyde is 21%.
Embodiment 9
Add 5 milliliters of entry in a glass reactor, vinylbenzene 20 microlitres (pH value 7.2) are adjusted stirring velocity～30 commentaries on classics/min, mix, and are airtight, aerating oxygen, radiation of visible light, stopped reaction after 12 hours.Reaction product mainly is a phenyl aldehyde, the selectivity 90.1% of phenyl aldehyde, and the productive rate of phenyl aldehyde is 2%.
Embodiment 10
Mixing solutions 5 milliliters of (volume ratio of methyl alcohol and water is 1: 4), vinylbenzene 100 microlitres of adding entry and methyl alcohol in a glass reactor are adjusted stirring velocity～30 commentaries on classics/min, mix, airtight, aerating oxygen is opened medium pressure mercury lamp, carry out the UV irradiation, stopped reaction after 8 hours.Reaction product mainly is a phenyl aldehyde, the selectivity 94.2% of phenyl aldehyde, and the productive rate of phenyl aldehyde is 9%.
Embodiment 11
In a glass reactor, add 1.5 milliliters of 3.5 milliliters of entry (pH value 6.5), chloroforms, H
2O
230%100 microlitres, cyclooctene 50 microlitres are adjusted stirring velocity～30 commentaries on classics/min, mix, and are airtight, and aerating oxygen is opened medium pressure mercury lamp, carries out the UV irradiation, stopped reaction after 10 hours.Reaction product is cyclooctene oxide compound (C
8H
14O), 2-cyclooctene-1-ketone (C
8H
12(=O)), 2-tetrahydrobenzene-1-alcohol (C
8H
13OH) etc., cyclooctene oxide selectivity 65.2%, 2-cyclooctene-1-ketone selectivity 23.6%, 2-cyclooctene-1-alcohol selectivity 4.6%.
Embodiment 12
Adding volume ratio in a glass reactor is 1000: 1 the water and 5 milliliters of the mixed solutions (pH value 8.5) of acetonitrile, 1, and 1-toluylene 100 microlitres are adjusted stirring velocity～30 commentaries on classics/min, mix, airtight, aerating oxygen, open medium pressure mercury lamp, carry out the UV irradiation, stopped reaction after 6 hours.Reaction product is benzophenone (C
6H
5C (O) C
6H
5), 1,1-hexichol oxyethane ((C
6H
5)
2CHCH
2O) etc., the selectivity 95.1%, 1 of benzophenone, the selectivity 4.9% of 1-hexichol oxyethane.
Embodiment 13
Add 5 milliliters of entry (pH value 8.5) in a glass reactor, vinylbenzene 5 microlitres are adjusted stirring velocity～30 commentaries on classics/min, mix, and are airtight, and aerating oxygen is opened medium pressure mercury lamp, carry out the UV irradiation, stopped reaction after 6 hours.Reaction product mainly is a phenyl aldehyde, the selectivity 91.0% of phenyl aldehyde, and the productive rate of phenyl aldehyde is 8%.
Embodiment 14
Add 1.5 milliliters of vinylbenzene in a glass reactor, 0.2 milliliter in water (pH value 8.5) is adjusted stirring velocity～30 commentaries on classics/min, mixes, and is airtight, and aerating oxygen is opened medium pressure mercury lamp, carries out the UV irradiation, stopped reaction after 6 hours.Reaction product mainly is a phenyl aldehyde, the selectivity 91.5% of phenyl aldehyde, and the productive rate of phenyl aldehyde is 3%.
Embodiment 15
The mixed solution (volume ratio is 4: 1) that in a glass reactor, adds entry and ether, vinylbenzene 100 microlitres (pH value 5.5) are adjusted stirring velocity～30 commentaries on classics/min, mix, airtight, bubbling air, open medium pressure mercury lamp, carry out the UV irradiation, stopped reaction after 6 hours.Reaction product mainly is a phenyl aldehyde, the selectivity 90.6% of phenyl aldehyde, and the productive rate of phenyl aldehyde is 2%.
Embodiment 16
In a glass reactor, add 5 milliliters of chloroforms, water 5 microlitres, vinylbenzene 100 microlitres, adjust stirring velocity～30 commentaries on classics/min, mix, aerating oxygen is opened medium pressure mercury lamp, carries out the UV irradiation, stopped reaction after 7 hours, reaction product mainly is a phenyl aldehyde, the selectivity 90.0% of phenyl aldehyde, and the productive rate of phenyl aldehyde is 10%.
Embodiment 17
Add 5 milliliters of entry in a glass reactor, Beta-methyl vinylbenzene 100 microlitres (pH value 7.2) are adjusted stirring velocity～30 commentaries on classics/min, mix, and are airtight, and bubbling air is opened medium pressure mercury lamp, carry out the UV irradiation, stopped reaction after 12 hours.Reaction product mainly is a phenyl aldehyde, the selectivity 93.1% of phenyl aldehyde, and the productive rate of phenyl aldehyde is 18%.
Embodiment 18
Add 5 milliliters of entry in a glass reactor, 3-vinyl toluene 100 microlitres (pH value 7.2) are adjusted stirring velocity～30 commentaries on classics/min, mix, and are airtight, and bubbling air is opened medium pressure mercury lamp, carry out the UV irradiation, stopped reaction after 12 hours.Reaction product mainly is the 3-tolyl aldehyde, the selectivity 93.5% of 3-tolyl aldehyde, and the productive rate of 3-tolyl aldehyde is 5%.
Reference examples 1
Add 5 milliliters of entry, vinylbenzene 100 microlitres in a glass reactor, adjust stirring velocity～30 commentaries on classics/min, mix, airtight, aerating oxygen carries out dark reaction, stopped reaction after 12 hours.There is not product to generate.
Reference examples 2
Add 5 milliliters of methyl alcohol, vinylbenzene 100 microlitres in a glass reactor, adjust stirring velocity～30 commentaries on classics/min, mix, airtight, aerating oxygen is opened medium pressure mercury lamp, carries out the UV irradiation, stopped reaction after 12 hours.There is not product to generate.
Reference examples 3
Add 5 milliliters of ethanol, vinylbenzene 100 microlitres in a glass reactor, adjust stirring velocity～30 commentaries on classics/min, mix, airtight, aerating oxygen is opened medium pressure mercury lamp, carries out the UV irradiation, stopped reaction after 12 hours.There is not product to generate.
Claims (9)
1, a kind of photochemical method of alkene synthesizing oxygen-containing compounds, it is characterized in that alkene under UV-light/visible light-inducing, oxidized dose of oxidation in water or organic/water blending agent, obtain oxygenatedchemicals, the volume ratio of described organic medium and water is 1000: 1 to 1: 1000, described organic medium is aromatic hydrocarbon, aliphatic hydrocarbon, halogenated alkane, ethers, alcohols, described alkene is alkene such as chain alkene, cyclic olefin, fragrant alkene, replacement chain alkene, substituted cyclic alkene or substituted aroma alkene, and described oxygenant is air, oxygen, H
2O
2
2, method according to claim 1 is characterized in that the oxygenatedchemicals that obtains is aldehyde, ketone or epoxy compounds.
3, method according to claim 1 is characterized in that the volume ratio 1: 1000 to 10: 1 of described alkene and water or blending agent.
4, method according to claim 1 is characterized in that described halogenated alkane is chloroform, tetracol phenixin, methylene dichloride, ethylene dichloride, chloro-propane, chloro-butane, methyl fuoride or fluoroethane.
5, method according to claim 1 is characterized in that described water or organic/water blending agent intermediate ion intensity are 0.01-10.
6, method according to claim 1 is characterized in that described water or organic/water blending agent are for acid, neutral or alkaline
7, method according to claim 1 is characterized in that described photoinduction carries out under artificial light or sunlight.
8, method according to claim 1, the pressure that it is characterized in that described oxygenant oxygen is 0.02MPa-20.0MPa.
9, method according to claim 1 is characterized in that described oxidant concentration is 10
-4-10M.
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| CNB2004100461964A CN1332913C (en) | 2004-06-02 | 2004-06-02 | Photochemical process for olefin synthesis of oxygen-containing compound |
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|---|---|---|---|
| CNB2004100461964A CN1332913C (en) | 2004-06-02 | 2004-06-02 | Photochemical process for olefin synthesis of oxygen-containing compound |
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| CN1704355A true CN1704355A (en) | 2005-12-07 |
| CN1332913C CN1332913C (en) | 2007-08-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105732244A (en) * | 2014-12-12 | 2016-07-06 | 湖南师范大学 | Effective system for organic matter selective oxidation by visible light excitation decatungstate catalysis |
| CN109694312A (en) * | 2018-12-26 | 2019-04-30 | 青岛市资源化学与新材料研究中心 | A kind of method of photocatalysis cyclohexene selection synthesis cyclohexenone |
| WO2022257598A1 (en) * | 2021-06-09 | 2022-12-15 | 复旦大学 | Method for light-promoted oxidation of compound containing saturated carbon-hydrogen bond |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994006736A1 (en) * | 1992-09-16 | 1994-03-31 | Hoechst Aktiengesellschaft | Sensitized photooxygenation process of unsaturated compounds |
| JP2000033265A (en) * | 1998-07-17 | 2000-02-02 | Chisso Corp | Selective oxidation photocatalyst for olefin and aromatic carbon compound, and production of oxygen- containing compound using the same |
-
2004
- 2004-06-02 CN CNB2004100461964A patent/CN1332913C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105732244A (en) * | 2014-12-12 | 2016-07-06 | 湖南师范大学 | Effective system for organic matter selective oxidation by visible light excitation decatungstate catalysis |
| CN109694312A (en) * | 2018-12-26 | 2019-04-30 | 青岛市资源化学与新材料研究中心 | A kind of method of photocatalysis cyclohexene selection synthesis cyclohexenone |
| WO2022257598A1 (en) * | 2021-06-09 | 2022-12-15 | 复旦大学 | Method for light-promoted oxidation of compound containing saturated carbon-hydrogen bond |
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