CN1560029A - Substituting Cis-1,2-dicyano vinyl and synthesis process thereof - Google Patents

Substituting Cis-1,2-dicyano vinyl and synthesis process thereof Download PDF

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CN1560029A
CN1560029A CNA2004100135698A CN200410013569A CN1560029A CN 1560029 A CN1560029 A CN 1560029A CN A2004100135698 A CNA2004100135698 A CN A2004100135698A CN 200410013569 A CN200410013569 A CN 200410013569A CN 1560029 A CN1560029 A CN 1560029A
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acrylonitriles
trans
replacement
solvent
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陈志敏
吴谊群
左霞
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Heilongjiang University
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Abstract

The invention is a substituted cis-1, 2-ethylene dicyanide and its synthetic method: (1) synthesizing substituted trans-1, 2-ethylene dihalide and substituted cis-1, 2-ethylene dihalide; (2) synthesizing substituted trans-1, 2-ethylene dicyanide and substituted cis-1, 2-ethylene dicyanide; (3) converting substituted trans-1, 2-ethylene dicyanide to the optical isomer of substituted cis-1, 2-ethylene dicyanide; it broadens the modifiability of tetraazaporphyrin complex, and increases the solubility of its metal complex; the synthetic method and conditions are moderate, have no special requirements for the reacting system, the raw materials have low toxicity and the total productivity is high.

Description

Replace cis 1,2-two acrylonitriles and synthetic method thereof
Technical field
The present invention relates to a kind of replacement cis 1,2-two acrylonitriles and synthetic method thereof, the particularly cis 1 that replaces about alkyl, aryl, 2-dicyan ethylene product and synthetic method.Method of the present invention can be widely used in the cis 1 that alkyl, aryl replace, 2-two acrylonitriles synthetic, and its compound and derivative thereof are one of synthetic important intermediate that replaces tetraazatetradecane porphyrin class title complex.
Background technology
Tetraazatetradecane porphyrin and title complex thereof make it all have very wide application prospect in fields such as biology, bionics, materialogy, pharmacology, electrochemistry, optical physics chemistry as anticancer photosensitizer, optical storage media, nonlinear optical material, the quick material of air humidity or the like because it has special macrocyclic structure and excellent physics, chemical property.Do not replace the poorly soluble of tetraazatetradecane porphyrin and title complex thereof owing to have, the research and the application of a lot of character are restricted, thereby improve the solvability of tetraazatetradecane porphyrin title complex, and the high-efficiency synthesis method of seeking solubility tetraazatetradecane porphyrin title complex becomes the major issue that needs to be resolved hurrily at present.Cis-1,2-two acrylonitriles (also being Maleic nitrile) and trans-1,2-two acrylonitriles (also being flumaronitrile) and derivative thereof are one of intermediates of synthetic this compounds necessity, but trans-isomer(ide) trans-1,2-two acrylonitriles and derivative thereof are owing to structural reason, synthetic yield is far away from cis-isomeride, thereby is domestic and international scientist's research focus to the synthetic and performance study of Maleic nitrile (cis-1,2-two acrylonitriles) and their various derivatives always.Once reported the synthetic cis 1 that replaces of several differences in the document, the method of 2-two acrylonitriles: (1) document Zh.Org.Khim.1992,28 (10): 2149-2155 and Zh.Org.Khim.1979,15 (5): the method for 1076-1082 be with one or the dichloro Maleic nitrile in active chlorine atom carry out the synthetic target Maleic nitrile intermediate of nucleophilic substitution with other substituting group (as alkoxyl group, alkylthio etc.), the raw material one of this method or dichloro Maleic nitrile normally with succinonitrile or with phosphorus pentachloride or with chlorine reaction synthetic.The main drawback of this method is that raw material is expensive, phosphorus pentachloride or chlorine are the materials of strong moisture absorption and severe toxicity, and in the nucleophilic substitution process, there are some unsettled intermediates to produce, so the control to conversion unit and experiment condition requires also very high (such as waterless operation, temperature control), it is mainly used in the tetraazatetradecane porphyrin title complex of synthetic alkoxyl group, aryloxy replacement simultaneously.(2) document Inorg.Synth.1967,10:8-26 and Inorg.Chem.1980,19:383-385 is with a halohydrocarbon or dihalo hydrocarbon and the effect of Maleic nitrile disodium salt, obtain the Maleic nitrile intermediate that the dialkyl group of cis replaces, can react with dithiocarbonic anhydride by sodium cyanide as the Maleic nitrile disodium salt of raw material and obtain.The starting raw material sodium cyanide of this method and dithiocarbonic anhydride all are highly toxic substances, easily operator and environment are damaged, and in addition, this method can only be synthesized the tetraazatetradecane porphyrin title complex that is connected with eight alkylthios.Document Zh.Obshch.Khim.1977,47 (9): 2143-2148 once reported with cis-1,2-two bromo-tertiary butyl ethene are raw material, prepare cis-1 through cyaniding, the process of 2-dicyan-tertiary butyl ethene, and document Synthesis.1991,686-688 reported once that to replace alkynes be raw material, through bromination, reaction such as cyaniding and photoisomerization, preparation alkyl or aryl Maleic nitrile intermediate, the main drawback of these two kinds of methods are that per step reaction all needs pure substance, especially replace trans-1,2-sym-dibromoethane and replacement cis-1,2-sym-dibromoethane similar performance, separation difficulty, the trans-1 that separates, the 2-sym-dibromoethane is not used to next step reaction, thereby the synthetic overall yield is very low, and cost increases.
Summary of the invention
Purpose of the present invention is exactly the problem and shortage that exists in the above-mentioned prior art, research and design provides a kind of replacement cis 1,2-two acrylonitriles and synthetic method thereof, reach improve the sintetics overall yield, reduce production costs, raw material low toxicity and utilization ratio height, reaction conditions gentleness, purpose that reaction system is had no special requirements, alleviates and avoids operation producers and environment are damaged.
Basic design of the present invention is, replaces cis 1, and the general formula of molecular structure of 2-two acrylonitriles is as follows:
Figure A20041001356900071
C in the structural formula and N represent carbon and nitrogen respectively; R and R ' represent hydrogen atom, methyl, ethyl, propyl group, sec.-propyl, butyl, isobutyl-, the tertiary butyl and other straight chain, side chain and cyclic alkyl (C 1-20Individual carbon atom), aromatic base, heterocyclic radical; Above-mentioned replacement cis 1, two itrile groups of 2-two acrylonitriles are active groups that cyclization forms metal complexes.Above-mentioned replacement cis 1, the R of 2-two acrylonitriles and R ' substituting group have regulating effect to the metal complexes that forms in the solubleness of general organic solvent, are the important intermediate of preparation solubility tetraazatetradecane porphyrin title complex.
Replace cis 1,2-two acrylonitrile synthetic methods are as follows:
(1) replaces trans-1,2-acetylenedihalide and replace cis-1,2-acetylenedihalide synthetic
In reaction flask, add organic solvent 1 and replace alkynes, slowly splash in the above-mentioned solution with the mixed solution of dropping funnel with halogen and organic solvent 1, the mol ratio that replaces alkynes and halogen is 1: (1-1.4), and after dripping off, normal temperature continued stirring reaction 1-20 hour, reaction solution obtains product and replaces trans-1 after washing, boiling off solvent, 2-acetylenedihalide and replacement cis-1,2-acetylenedihalide mixture, the two mixture is directly used in the next step without separation, and also available column chromatography is further purified.
(2) replace trans-1,2-two acrylonitriles and replace cis-1,2-two acrylonitriles synthetic
Add cyanating reagent in reaction flask, organic solvent 2 stirs, be heated to room temperature-200 ℃, be cooled to room temperature, add and replace trans-1,2-acetylenedihalide and replacement cis-1,2-acetylenedihalide mixture, described replacement trans/cis-1, the mol ratio of 2-acetylenedihalide mixture and cyanating reagent is 1: (2-10), reheat is to 50-200 ℃, reacted 1-20 hour, and after reacting completely, be cooled to room temperature.Reaction solution is poured in ammoniacal liquor or the water, stirred 1-10 hour,, merge organic phase with organic solvent 3 extractions, washing after the drying, separates with the method for vacuum fractionation, recrystallization or column chromatography, obtain replacing trans-1 respectively, 2-two acrylonitriles and replacement cis-1,2-two acrylonitriles.
Described cyanating reagent can be cuprous cyanide, potassium cyanide, sodium cyanide and other cyanating reagent; Described organic solvent 2 is N, the mixed solvent of one or more of intensive polar solvents such as dinethylformamide (DMF), N,N-dimethylacetamide, N-Methyl pyrrolidone, methyl-sulphoxide.Described organic solvent 3 can be ether, methyl ethyl ether, chloroform, the mixed solvent of one or more of the non-polar solvent that tetracol phenixin, benzene, toluene, tetrahydrofuran (THF), sherwood oil, hexane etc. can not dissolve each other with water.
(3) replace trans-1,2-two acrylonitriles are to replacing cis-1, and the light isomery of 2-two acrylonitriles transforms
Add isolated replacement trans-1 in (2) in reaction flask, 2-two acrylonitriles join in the organic solvent 4, stir and use 100-1000 watt of high voltage mercury lamp radiation down, react 1-20 hour.Reaction boils off solvent after finishing, and carries out vacuum fractionation, recrystallization or column chromatography for separation, obtains replacing trans-1 respectively, 2-two acrylonitriles and replacement cis-1,2-two acrylonitriles.Isolated replacement trans-1,2-two acrylonitriles repeat the operation of this step, replace cis-1,2-two acrylonitriles until all being converted into.
Described organic solvent 4 can be one or more a mixed solvent of the low solvent of uv-absorbing such as acetonitrile, propionitrile, methyl alcohol, hexane.
Its reaction formula is as follows:
Figure A20041001356900091
Wherein X represents halogen or class halogen atoms such as fluorine, chlorine, bromine, iodine.
The invention provides a kind of replacement cis 1 of above-mentioned molecular structure, 2-two acrylonitriles simply, synthetic method efficiently.The present invention has the reaction conditions gentleness, reaction system is had no special requirements, raw material low toxicity and utilization ratio height, synthetic overall yield advantages of higher.Preparation method of the present invention is that a kind of preparation of highly effective replaces cis 1, and the method for 2-two acrylonitriles both had been fit to prepared in laboratory, also was fit to suitability for industrialized production.Replacement cis 1 of the present invention, 2-two acrylonitriles are preparation solubility and the important intermediate that replaces the tetraazatetradecane porphyrin title complex, have widened the modifiability of tetraazatetradecane porphyrin title complex greatly.In general organic solvent (as methyl alcohol, chloroform, methylene dichloride, DMF, toluene, hexane etc.), good solubleness is arranged behind the tetraazatetradecane porphyrin title complex metal complexes that compound cyclization of the present invention forms, such title complex has physics, the chemical property of many excellences simultaneously, and it all has very wide application prospect in fields such as materialogy, electrochemistry, optical physics chemistry as photoelectric switching device, optical conductor, optical information storage medium, nonlinear optical material or the like.
Description of drawings
Fig. 1 is 1, the infrared spectra of 2-two bromo-(4-ethylbenzene) ethene (trans 1a and cis 1a ');
Fig. 2 is 1, the infrared spectra of 2-two bromo-(4-butylbenzene) ethene (trans 1b and cis 1b ');
Fig. 3 is trans-1,2-dicyan-(4-ethylbenzene) ethene (2a) infrared spectra;
Fig. 4 is cis-1, and 2-dicyan-(4-ethylbenzene) ethene (2a ') infrared spectra;
Fig. 5 is trans-1,2-dicyan-(4-butylbenzene) ethene (2b) infrared spectra;
Fig. 6 is cis-1, and 2-dicyan-(4-butylbenzene) ethene (2b ') infrared spectra;
Fig. 7 is trans-1, the NMR (Nuclear Magnetic Resonance) spectrum of 2-dicyan-(4-butylbenzene) ethene (2b);
Fig. 8 is cis-1, the NMR (Nuclear Magnetic Resonance) spectrum of 2-dicyan-(4-butylbenzene) ethene (2b ').
Embodiment
Embodiment 1:
(1) trans-1,2-two bromo-(4-ethylbenzene) ethene (1a) and cis-1,2-two bromo-(4-ethylbenzene) ethene (1a ') synthetic
In reaction flask, add 200ml exsiccant CCl 4, 25.0ml4-ethylbenzene acetylene, with dropping funnel with the dry CCl of 10ml bromine and 100ml 4Mixed solution slowly splash in the above-mentioned solution, after dripping off, normal temperature continued stirring reaction 4 hours, and reaction solution obtains product trans-1 after washing, boiling off solvent, 2-two bromo-(4-ethylbenzene) ethene (1a) and cis-1,2-two bromo-(4-ethylbenzene) ethene (1a ') mixture, the two mixture is directly used in the next step, and also available column chromatography is further purified, weigh, calculate productive rate, measure the makings connection spectrum and the infrared spectra (as table 1) of product.
Table 11,2-two bromo-(4-ethylbenzene) ethene (trans 1a and cis 1a ') and 1, the analytical results of 2-two bromo-(4-ethylbenzene) ethene (trans 1b and cis 1b ')
GC IR
Compound?Yield(%) MS(m/e)
%oftotal?R.T.(min) V(cm -1)
1a 42.89 10.04
97.0 290[M] +See Fig. 1
1a’ 49.03 8.98
1b 60.02 12.83
96.0 318[M] +See Fig. 2
1b’ 30.09 11.27
(2) trans-1,2-dicyan-(4-ethylbenzene) ethene (2a) and cis-1,2-dicyan-(4-ethylbenzene) ethene (2a ') synthetic
In reaction flask, add the 35.67g cuprous cyanide; 200ml exsiccant DMF feeds nitrogen protection, stirs; be heated to 90-140 ℃; the reaction postcooling adds 42.53gtrans-1,2-two bromo-(4-ethylbenzene) ethene and cis-1 to room temperature; 2-two bromo-(4-ethylbenzene) mixture of ethylene; reheat after reacting completely, is cooled to room temperature to 90-140 ℃.Reaction solution is poured in the ammoniacal liquor, stirred 2 hours.With the extraction that agent solvent (3) are arranged, washing, after the drying, boil off solvent, method with recrystallization or column chromatography is separated, and obtains trans-1 respectively, 2-dicyan-(4-ethylbenzene) ethene (2a) and cis-1,2-dicyan-(4-ethylbenzene) ethene (2a '), weigh respectively, calculate productive rate, the fusing point of measuring product, infrared spectra, makings connection spectrum, 1H NMR and CHN content (as table 2).
Table 21,2-dicyan-(4-ethylbenzene) ethene (trans 2a and cis 2a ') and 1, the analytical results of 2-dicyan-(4-butylbenzene) ethene (trans 2b and cis 2b ')
Com- Elemental?analysis(%) IR
Yield(%) mp(℃) Found(Calcd)
pound V(cm -1)
C H N
2a 90.0 70.3-70.8 78.51 5.45 15.39 see Fig. 3
(79.10) (5.53) (15.37)
2a ' 93.0 46.5-47.0 78.96 5.55 15.70 see Fig. 4
(79.10) (5.53) (15.37)
2b 88.5 58.6-59.5 79.88 7.32 13.86 see Fig. 5
(79.97) (6.71) (13.32)
2b ' 73.6 normal temperature liquid 79.86 6.36 13.12 are seen Fig. 6
(79.97) (6.71) (13.32)
Continuous table 21,2-dicyan-(4-ethylbenzene) ethene (trans 2a and cis 2a ') and 1, the analytical results of 2-dicyan-(4-butylbenzene) ethene (trans 2b and cis 2b ')
Com- GC H-NMR(CDCl 3/TMS)
MS(m/e)
pound?%oftotal?R.T.(min) δ(ppm)
2a 97.4 11.26 1.26(t,J=7.6,3H),2.72(m,2H),6.32(s,1H),7.33(d,J=8.4,2H)
182(M +)?7.58(d,J=8.4,2H)
2a’98.2 9.04 1.27(t,J=7.6,3H),2.73(m,2H),6.06(s,1H),7.36(d,J=8.4,2H)
7.86(d,J=8.4,2H)
2b 90.5 14.56 0.93(t,J=7.2Hz,3H),1.35(m,2H),1.61(m,2H),2.68(m,2H)
210 (M +) 6.32 (s, 1H), 7.31 (d, J=8.4,2H), 7.57 (dJ=8.4,2H) (see figure 7)s
2b’96.6 11.06
0.94(t,J=7.2Hz,3H),1.36(m,2H),1.62(m,2H),2.69(m,2H)
6.06 (s, 1H), 7.33 (d, J=8.4,2H), 7.86 (dJ=8.4,2H) (see figure 8)s
(3) trans-1,2-dicyan-(4-ethylbenzene) ethene (2a) is to cis-1, and the light isomery of 2-dicyan-(4-ethylbenzene) ethene (2a ') transforms
In reaction flask, add isolated trans-1 in (3), 2-dicyan-(4-ethylbenzene) ethene 4.0g, the 150ml acetonitrile feeds nitrogen protection, stirs down with 500 watts of high voltage mercury lamp radiations.After reaction finishes, boil off solvent, column chromatography for separation obtains trans-1,2-dicyan-(4-ethylbenzene) ethene (2a) and cis-1,2-dicyan-(4-ethylbenzene) ethene (2a '), weigh respectively, transformation efficiency is 50%, isolated trans-1,2-dicyan-(4-ethylbenzene) ethene repeats the operation of this step, until all being converted into cis-1,2-dicyan-(4-ethylbenzene) ethene (2a ').
Embodiment 2
(1) trans-1,2-two bromo-(4-butylbenzene) ethene (1b) and cis-1,2-two bromo-(4-butylbenzene) ethene (1b ') synthetic
Change the 4-ethylbenzene acetylene in embodiment 1 the first step into equimolar 4-butylbenzene acetylene, reaction makes trans-1 under similarity condition, 2-two bromo-(4-butylbenzene) ethene (1b) and cis-1, and 2-two bromo-(4-butylbenzene) ethene (1b '), the two mixture is directly used in the next step.Also available column chromatography is further purified, and weighs, calculates productive rate, measures the makings connection spectrum and the infrared spectra (as table 1) of product.
(2) trans-1,2-dicyan-(4-butylbenzene) ethene (2b) and cis-1,2-dicyan-(4-butylbenzene) ethene (2b ') synthetic
With the trans-1 of embodiment in 1 second step, 2-two bromo-(4-ethylbenzene) ethene and cis-1,2-two bromo-(4-ethylbenzene) mixture of ethylene changes trans-1 into, 2-two bromo-(4-butylbenzene) ethene and cis-1,2-two bromo-(4-butylbenzene) mixture of ethylene, reaction makes trans-1,2-dicyan-(4-butylbenzene) ethene and cis-1,2-dicyan-(4-butylbenzene) ethene under similarity condition.Weigh, calculate productive rate respectively, measure product fusing point, infrared spectra, makings connection spectrum, 1H NMR and CHN content (as table 2).
(3) trans-1,2-dicyan-(4-butylbenzene) ethene (2b) is to cis-1, and the light isomery of 2-dicyan-(4-butylbenzene) ethene (2b ') transforms
With the trans-1 of embodiment 1 in the 3rd step, 2-dicyan-(4-ethylbenzene) ethene changes trans-1 into, 2-dicyan-(4-butylbenzene) ethene, under similarity condition, react, make trans-1,2-dicyan-(4-butylbenzene) ethene (2b) and cis-1,2-dicyan-(4-butylbenzene) ethene (2b '), weigh respectively, transformation efficiency is 48%, isolated trans-1, and 2-dicyan-(4-butylbenzene) ethene repeats the operation of this step, until all being converted into cis-1,2-dicyan-(4-butylbenzene) ethene (2b ').

Claims (3)

1, a kind of replacement cis 1,2-two acrylonitriles is characterized in that this replacement cis 1, the general formula of molecular structure of 2-two acrylonitriles is as follows:
Figure A2004100135690002C1
C in the structural formula and N represent carbon and nitrogen respectively; R and R ' represent hydrogen atom, methyl, ethyl, propyl group, sec.-propyl, butyl, isobutyl-, the tertiary butyl and other straight chain, side chain and cyclic alkyl (C 1-20Individual carbon atom), aromatic base, heterocyclic radical.
2, a kind of replacement cis 1,2-two acrylonitrile synthetic methods is characterized in that synthesis step is as follows:
(1) replaces trans-1,2-acetylenedihalide and replace cis-1,2-acetylenedihalide synthetic
In reaction flask, add organic solvent 1 and replace alkynes, slowly splash in the above-mentioned solution with the mixed solution of dropping funnel with halogen and organic solvent 1, the mol ratio that replaces alkynes and halogen is 1: (1-1.4), and after dripping off, normal temperature continued stirring reaction 1-20 hour, reaction solution obtains product and replaces trans-1 after washing, boiling off solvent, 2-acetylenedihalide and replacement cis-1,2-acetylenedihalide mixture, the two mixture is directly used in the next step without separation, and also available column chromatography is further purified.
(2) replace trans-1,2-two acrylonitriles and replace cis-1,2-two acrylonitriles synthetic
Add cyanating reagent in reaction flask, organic solvent 2 stirs, be heated to room temperature-200 ℃, be cooled to room temperature, add and replace trans-1,2-acetylenedihalide and replacement cis1,2-acetylenedihalide mixture, described replacement trans/cis-1, the mol ratio of 2-acetylenedihalide mixture and cyanating reagent is 1: (2-10), reheat is to 50-200 ℃, reacted 1-20 hour, and after reacting completely, be cooled to room temperature.Reaction solution is poured in ammoniacal liquor or the water, stirred 1-10 hour,, merge organic phase with organic solvent 3 extractions, washing after the drying, separates with the method for vacuum fractionation, recrystallization or column chromatography, obtain replacing trans-1 respectively, 2-two acrylonitriles and replacement cis-1,2-two acrylonitriles.
(3) replace trans-1,2-two acrylonitriles are to replacing cis-1, and the light isomery of 2-two acrylonitriles transforms
Add isolated replacement trans-1 in (2) in reaction flask, 2-two acrylonitriles join in the organic solvent 4, stir and use 100-1000 watt of high voltage mercury lamp radiation down, react 1-20 hour.Reaction boils off solvent after finishing, and carries out vacuum fractionation, recrystallization or column chromatography for separation, obtains replacing trans-1 respectively, 2-two acrylonitriles and replacement cis-1,2-two acrylonitriles.Isolated replacement trans-1,2-two acrylonitriles repeat the operation of this step, replace cis-1,2-two acrylonitriles until all being converted into.
Its reaction formula is as follows:
Figure A2004100135690003C1
Wherein X represents halogen or class halogen atoms such as fluorine, chlorine, bromine, iodine.
3, replacement cis 1 according to claim 2,2-two acrylonitrile synthetic methods is characterized in that described organic solvent 1 is one or more a mixed solvent of tetracol phenixin, Glacial acetic acid equal solvent.Described cyanating reagent is cuprous cyanide, potassium cyanide, sodium cyanide and other cyanating reagent; Described organic solvent 2 is N, the mixed solvent of one or more of dinethylformamide (DMF), N,N-dimethylacetamide, N-Methyl pyrrolidone, methyl-sulphoxide equal solvent.Described organic solvent 3 is ether, methyl ethyl ether, chloroform, the mixed solvent of one or more of tetracol phenixin, benzene, toluene, tetrahydrofuran (THF), sherwood oil, hexane equal solvent.Described organic solvent 4 is one or more mixed solvents of acetonitrile, propionitrile, methyl alcohol, hexane equal solvent.
CNA2004100135698A 2004-02-20 2004-02-20 Substituting Cis-1,2-dicyano vinyl and synthesis process thereof Pending CN1560029A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109232222A (en) * 2018-10-19 2019-01-18 武汉嘉诺康医药技术有限公司 A kind of preparation method of (E)-octyl- 4- alkene -1,8- diacid
CN109400431A (en) * 2018-08-28 2019-03-01 浙江工业大学 A kind of synthetic method of the double bromine compounds of phenylacetylene class compound

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109400431A (en) * 2018-08-28 2019-03-01 浙江工业大学 A kind of synthetic method of the double bromine compounds of phenylacetylene class compound
CN109232222A (en) * 2018-10-19 2019-01-18 武汉嘉诺康医药技术有限公司 A kind of preparation method of (E)-octyl- 4- alkene -1,8- diacid
CN109232222B (en) * 2018-10-19 2021-03-23 武汉嘉诺康医药技术有限公司 Preparation method of (E) -octyl-4-ene-1, 8-diacid

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