CN106892942A - A kind of preparation method of β amidos ethylphosphonic acid derivative - Google Patents

A kind of preparation method of β amidos ethylphosphonic acid derivative Download PDF

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CN106892942A
CN106892942A CN201710079473.9A CN201710079473A CN106892942A CN 106892942 A CN106892942 A CN 106892942A CN 201710079473 A CN201710079473 A CN 201710079473A CN 106892942 A CN106892942 A CN 106892942A
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邹建平
刘奎
张沛之
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Suzhou University
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    • C07F9/02Phosphorus compounds
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/3804Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
    • C07F9/3882Arylalkanephosphonic acids
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    • C07F9/02Phosphorus compounds
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/3804Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
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    • C07F9/02Phosphorus compounds
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
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    • C07F9/4003Esters thereof the acid moiety containing a substituent or a structure which is considered as characteristic
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    • C07F9/02Phosphorus compounds
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/50Organo-phosphines
    • C07F9/53Organo-phosphine oxides; Organo-phosphine thioxides
    • C07F9/5333Arylalkane phosphine oxides or thioxides
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    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6561Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings
    • C07F9/65616Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings containing the ring system having three or more than three double bonds between ring members or between ring members and non-ring members, e.g. purine or analogs

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Abstract

The invention discloses a kind of preparation method of β amidos ethylphosphonic acid derivative, by in ethene derivatives, ammonia derivative, organic phosphine compound, silver nitrate, the copper bromide of catalytic amount and solvent addition reactor, reaction is carried out at 30~50 DEG C, β amido ethyl phosphine acyl derivatives are obtained, add hydrochloric acid further to react, obtain more β amidos ethylphosphonic acid derivatives.The present invention is starting material using ethene derivatives, and raw material is easy to get, species is a lot;The product types that profit is obtained by the present invention are various, not only can directly using but also can be used for other further reactions.Meanwhile, reaction condition is gentle, operation and last handling process are simple, and concise production process, yield is higher, is suitable for large-scale production.

Description

A kind of preparation method of beta-amido ethylphosphonic acid derivative
The application is the divisional application of the Chinese invention patent application of Application No. 201510360967.5, the Shen of original application Please day be:On June 26th, 2015, Application No.:201510360967.5, it is entitled:A kind of beta-amido ethyl phosphono spreads out Biological preparation method.
Technical field
The present invention relates to a kind of nitrogenous organic phosphine compound, and in particular to a kind of preparation of beta-amido ethylphosphonic acid derivative Method, belongs to organic synthesis field.
Background technology
The structure of beta-amido ethyl phosphine acyl derivative similar to beta-amino acids, with extensive physiologically active, such as antibacterial, thorn Swash nerve, the growth of influence cell and metabolism, analgesic, regulation blood pressure, the effect such as coordinate plant growth, thus can as medicine, Agricultural chemicals, antagonist, anthocyanidin synthetic inhibitor, fructose diphosphate enzyme inhibitor etc. are used(Referring to Maier, L. Phosphorus Sulfur 1983, 14, 295;Abbenante, Giovanni; Australian J. Chem., 1997, 50, 523-527;L. Maier, P. J. Diel, Phosphorus, Sulfur Silicon., 1995, 107, 245-255;L. Maier, P. J. Diel, Phosphorus, Sulfur Silicon., 1996, 109- 110, 341-344;Erion, M. D.; Dang, Q.; Reddy, M. R.; Kasibhatla, S. R.; Huang, J. W.; Lipscomb, W. N.; Poelje, P. D. J. Am. Chem.Soc. 2007, 129, 15480- 15490;Dang, Q.; Brown, B. S.; Liu, Y.; Rydzewski, R. M.; Robinson, E. D.; Poelje, P. D.; Reddy, M. R.; Erion, M. D. J. Med. Chem. 2009, 52, 2880– 2898.).
In the prior art, the synthetic method of beta-amido ethyl phosphine acyl derivative mainly has following several:
1st, from nitrile, in the presence of organolithium reagent, sodium borohydride reduction agent, beta-amido is obtained through addition, reduction and hydrolysis Ethyl phosphine acyl derivative;The method needs the synthesis of equivalent, sodium borohydride reduction agent, severe reaction conditions, reaction step It is rapid many.
2nd, beta-amido ethyl phosphine acyl derivative is obtained through with hydrazine reaction, reduction and hydrolysis from β-carbonylic phosphonic acid ester;Should Method is needed with β-carbonylic phosphonic acid ester as starting material, and raw material is difficult to obtain, and reactions steps are more, and yield is relatively low.
3rd, beta-amido ethyl phosphine acyl derivative is obtained through ammonification, reduction and hydrolysis from β-carbonylic phosphonic acid ester;The method Need with β-carbonylic phosphonic acid ester as starting material, raw material is difficult to obtain, it is necessary to using expensive sodium cyanoborohydride as reducing agent, Yield is relatively low.
4th, bromo heteroaryl hydrocarbon and beta-aminoethyl phosphonate ester react in the basic conditions, then are obtained through acid condition hydrolysis Beta-amido ethyl phosphine acyl derivative;The method need with beta-aminoethyl phosphonate ester as starting material, raw material is difficult to obtain, yield compared with It is low.
In sum, although prior art can prepare some beta-amido ethyl phosphine acyl derivatives, there is reaction condition The harsh, defect that reaction raw materials are rare, reaction cost is high and product structure is few;Therefore exploitation reaction condition is gentle, be applicable model Enclose extensively, reactions steps are few, yield is high, low cost, meet Green Chemistry requirement beta-amido ethyl phosphine acyl derivative preparation side Method is extremely important.
The content of the invention
Goal of the invention of the invention is to provide a kind of preparation method of beta-amido ethyl phosphine acyl derivative.
To achieve the above object of the invention, the technical solution adopted by the present invention is:A kind of beta-amido ethyl phosphine acyl derivative Preparation method, comprises the following steps, by ethene derivatives, ammonia derivative, organic phosphine compound, silver nitrate, copper bromide and solvent Add in reactor, in 30~50 DEG C of reactions, beta-amido ethyl phosphine acyl derivative is obtained;
In molar ratio, ethene derivatives: ammonia derivative: organic phosphine compound: silver nitrate: copper bromide is 1: (1~4): (1~2): (1~3):(0.1~0.3);
The general structure of the ethene derivatives is:
Wherein R11、R4、R5Selection take one of following scheme:
(1)R11、R4All it is hydrogen, R5It is carboxyl;
(2) R4It is the one kind in methyl, bromine, phenyl, R5It is hydrogen, R11It is phenyl;
(3) R5It is the one kind in methyl, bromine, phenyl, R11It is phenyl, R4It is hydrogen;
(4) R4、R5All it is hydrogen, R11For
The structural formulaMiddle R1、R2、R3Selection take one of following scheme:
(1) R1It is the one kind in hydrogen, methyl, methoxyl group, ethyl, the tert-butyl group, fluorine, chlorine, bromine, cyano group and nitro, R2、R3All it is Hydrogen;
(2) R2It is the one kind in methyl, methoxyl group, ethyl, the tert-butyl group, fluorine, chlorine, bromine, cyano group and nitro, R1、R3All it is hydrogen;
(3) R3It is the one kind in methyl, methoxyl group, ethyl, the tert-butyl group, fluorine, chlorine, bromine, cyano group and nitro, R1、R2All it is hydrogen;
The general structure of the ammonia derivative is:, wherein R6It is hydrogen, methyl, ethyl, propyl group, hexyl, 6- acetyl Amino-fast quinoline -9- bases, 2- cyano-phenyls or
The structural formulaIn, R7、R8And R9Selection take one of following scheme:
(1) R7During a kind of in for hydrogen, methyl, ethyl, the tert-butyl group, methoxyl group, fluorine, chlorine, bromine, nitro, R8And R9All it is hydrogen;
(2) R8During a kind of in for methyl, ethyl, the tert-butyl group, methoxyl group, fluorine, chlorine, bromine, nitro, R7And R9All it is hydrogen;
(3) R9During a kind of in for methyl, ethyl, the tert-butyl group, methoxyl group, fluorine, chlorine, bromine, nitro, R7And R8All it is hydrogen;
The organic phosphine compound is as shown in having structure formula:
R10It is the one kind in methoxyl group, ethyoxyl, isopropoxy, tert-butoxy, phenyl;
The solvent is selected from:One kind in methyl alcohol, ethanol, acetonitrile, acetic acid, propionic acid, dichloromethane or toluene.
The chemical structure of general formula of the beta-amido ethyl phosphine acyl derivative that the present invention is obtained is:
In above-mentioned technical proposal, the ethene derivatives are selected from acrylic acid, styrene, 2-methyl styrene, 3- methylbenzenes Ethene, 4- methyl styrenes, 2- methoxy styrenes, 3- methoxy styrenes, 4- methoxy styrenes, 2- fluorobenzene ethenes, 3- Fluorobenzene ethene, 4- fluorobenzene ethenes, 2- bromstyrols, 3- bromstyrols, 4- bromstyrols, 2- chlorostyrenes, 3- chlorostyrenes, 4- In chlorostyrene, a- methyl styrenes, Beta-methyl styrene, 1,2- diphenylethlenes, 4- cyano styrenes, 4- nitrostyrolenes One kind.The ammonia derivative is selected from ammoniacal liquor, the fast quinoline of 6- acetylaminohydroxyphenylarsonic acid 9- amino, propylamine, aniline, 2-aminotoluene, 3- methyl Aniline, 4- methylanilines, 2- aminoanisoles, 3- aminoanisoles, 4- aminoanisoles, 2- MEAs, 2- tert-butyl benzenes Amine, 2- fluoroanilines, 3- fluoroanilines, 4- fluoroanilines, 2- chloroanilines, 3- chloroanilines, 4- chloroanilines, 2- bromanilines, 3- bromanilines, 4- One kind in bromaniline, 4- nitroanilines, 2- cyano-anilines.The organic phosphine compound is selected from dimethyl phosphite, diethyl One kind in base phosphite ester, diisopropyl phosphite, diphenyl phosphine oxide.
In above-mentioned technical proposal, in molar ratio, ethene derivatives: ammonia derivative: organic phosphine compound: silver nitrate: bromination Copper is 1: (1~4): (1~2): (1~3):(0.1~0.3);Preferably 1: 3: 1.5: 2: 0.2.Accelerator dosage is few, not only letter The purification process of product is changed, has reduced the generation of discarded object, and should have with positive realistic meaning for industry.
In preferred technical scheme, the solvent is acetonitrile.
In preferred technical scheme, reaction temperature is 40 DEG C.Method of the present invention reaction condition is gentle, simple, without multiple Miscellaneous operation, obtains that product yield is very high, and ensure that the safety of course of reaction.
In above-mentioned technical proposal, in air, using thin-layer chromatography tracking reaction until being fully completed.
In preferred technical scheme, reaction carries out purification processes after terminating to product;After reaction terminates, reaction solution is through post layer Analysis is separated, and obtains target product beta-amido ethyl phosphine acyl derivative.
Above-mentioned product beta-amido ethyl phosphine acyl derivative can further react and obtain beta-amido ethylphosphonic acid derivative, specifically After terminating for 30~50 DEG C of reactions, hydrochloric acid is added, be then refluxed for reaction, obtain beta-amido ethylphosphonic acid derivative;β-the amine The chemical structural formula of base ethylphosphonic acid derivative is:
In above-mentioned technical proposal, the mass concentration of the hydrochloric acid is 20%;In molar ratio, beta-amido ethyl phosphine acyl derivative: Hydrochloric acid is 1: 2.
In above-mentioned technical proposal, during back flow reaction, using thin-layer chromatography tracking reaction until being fully completed.
In above-mentioned technical proposal, after back flow reaction terminates, sodium hydroxide solution is added in reaction solution, it is then that reaction solution is dense It is reduced to dry, target product beta-amido ethylphosphonic acid derivative is recrystallized to give with methyl alcohol/expoxy propane.
The course of reaction of technical solution of the present invention is represented by:
Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art:
1. the present invention is only with a small amount of accelerator, without organic ligand, you can using ethene derivatives for starting material is efficiently prepared Product, without using noble metal reagent and other additives, raw material availability is high, product yield high;Simplify the purification of product Process, reduces the generation of discarded object, and effective reduces cost should have with positive realistic meaning for industry.
2. preparation method disclosed by the invention is applied widely, and raw material is easy to get, species is a lot;It is applicable not only to alkyl sub- Phosphate, applies also for diphenyl phosphate oxygen, and overcomes interfering with each other for reactive group first, and carboxyl successfully is introduced into product Structure, the product types for obtaining are various, not only can directly using but also can be used for other further reactions, significantly expand The product structure of beta-amido ethyl phosphine acyl derivative, be conducive to development beta-amido ethyl phosphine acyl derivative organic synthesis, agricultural chemicals, The application of the aspects such as medicine, inhibitor;Overcome the defect that prior art is only capable of being directed to less substrate.
3. preparation method reaction condition disclosed by the invention is gentle, operation and last handling process are simple, it is only necessary to 40 DEG C Reaction, the yield of highest available 92%, especially for the raw material that can not be reacted very well due to steric hindrance and conjugation influence, More than 65% product yield is still reached, cumbersome prior art operation, process hazard, severe reaction conditions, product is efficiently solved Thing yield is low, the few defect of product structure;It is suitable for industrialized production.
Specific embodiment
With reference to embodiment, the invention will be further described:
Embodiment one:The synthesis of 2- amino -2- phenylethyl phosphonic acids
Methyl alcohol is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), ammoniacal liquor (0.12 g, 4.0 mmol), Dimethyl phosphite (0.22 g, 2 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 Mmol), in 40 DEG C of stirring reactions, TLC tracking reaction is until terminate for mixture.After reaction terminates, half reaction solution, warp are taken out The crude by column chromatography obtained after concentration is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product 2- Amino -2- phenylethyl phosphonate esters(Yield 81%);1H NMR (400 MHz, CDCl3): δ8.50 (s, 2H),7.18- 7.42 (m, 5H), 4.11-4.31 (m, 1H), 3.63 (d, J = 10.8 Hz, 6H), 1.60-1.80 (m, 2H)。
The hydrochloric acid of 7.5 mL 20%, mixture is added to be heated to reflux in remaining second half reaction solution in reaction bulb, TLC Tracking reaction is until terminate;Appropriate sodium hydroxide solution is added, is then concentrated to dryness reaction solution, with methyl alcohol/expoxy propane It is recrystallized to give 2- amino -2- phenylethyls phosphonic acids (yield 75%).Its analyze data is as follows:1H NMR (300 MHz, D2O): δ7.20-7.40 (m, 5H), 4.11-4.31 (m, 1H), 1.60-1.80 (m, 2H) 。
Embodiment two:The synthesis of 2- amino -2- (4- chlorphenyls) ethylphosphonic acid
Ethanol is added in the reactor(6 mL), 4- chlorostyrenes (0.139 gram, 1 mmol), ammoniacal liquor (0.12 g, 4.0 Mmol), dimethyl phosphite (0.22 g, 1 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), in 30 DEG C of stirring reactions, TLC tracking reaction is until terminate for mixture.After reaction terminates, a half-reaction is taken out Liquid, it is concentrated after the crude by column chromatography that obtains separate(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product Thing 2- amino -2- (4- chlorphenyls) ethyl phosphonate(Yield 84%).Its analyze data is as follows:1H NMR (400 MHz, CDCl3): δ8.50 (s, 2H), 7.57–7.43 (m, 4H),4.11-4.31 (m, 1H), 3.64 (d, J = 10.8 Hz, 6H), 1.61-1.80 (m, 2H)。
The hydrochloric acid of 7.5 mL 20%, mixture is added to be heated to reflux in remaining second half reaction solution in reaction bulb, TLC Tracking reaction is until terminate;Appropriate sodium hydroxide solution is added, is then concentrated to dryness reaction solution, with methyl alcohol/expoxy propane It is recrystallized to give 2- amino -2- (4- chlorphenyls) ethylphosphonic acid (yield 77%).Its analyze data is as follows:1H NMR (300 MHz, D2O): δ7.60-7.20 (m, 4H), 4.13-4.34 (m, 1H), 1.62-1.83 (m, 2H) 。
Embodiment three:The synthesis of 2- aminoethyl phosphonic acids
Acetonitrile is added in the reactor(6 mL), acrylic acid (0.072 gram, 1 mmol), ammoniacal liquor (0.24 g, 8.0 mmol), Phosphonous acid diethylester (0.276 gram, 2 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 Mmol), in 50 DEG C of stirring reactions, TLC tracking reaction is until terminate for mixture.After reaction terminates, half reaction solution, warp are taken out The crude by column chromatography obtained after concentration is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product 2- Aminoethylphosphonate(Yield 78%).Its analyze data is as follows:1H NMR (300 MHz, D2O): δ4.30-4.50 (m, 1H), 4.10−3.95 (m, 4H), 1.72-1.93 (m, 2H), 1.27 (t, J = 7.1 Hz, 6H) 。
The hydrochloric acid of 7.5 mL 20%, mixture is added to be heated to reflux in remaining second half reaction solution in reaction bulb, TLC Tracking reaction is until terminate;Appropriate sodium hydroxide solution is added, is then concentrated to dryness reaction solution, with methyl alcohol/expoxy propane It is recrystallized to give 2- aminoethyl phosphonic acids (yield 71%).Its analyze data is as follows:1H NMR (300 MHz, D2O): δ 4.09-4.33 (m, 2H), 1.61-1.83 (m, 2H) 。
Example IV:2-(The fast base of quinoline -9- amino -9 of 6- amino)The synthesis of ethylphosphonic acid
Acetonitrile is added in the reactor(6 mL), acrylic acid (0.072 gram, 1 mmol), the 6- acetylaminohydroxyphenylarsonic acid fast quinolines of 9- amino (0.192 g, 1.0 mmol), phosphonous acid diethylester (0.276 gram, 2 mmol), silver nitrate (0.340 gram, 2 mmol), Copper bromide (0.045 gram, 0.2 mmol), in 40 DEG C of stirring reactions, TLC tracking reaction is until terminate for mixture;
The hydrochloric acid of 15 mL 20%, mixture is added to be heated to reflux in reaction bulb, TLC tracking reaction is until terminate;Add appropriate Sodium hydroxide solution, then reaction solution is concentrated to dryness, be recrystallized to give 2- with methyl alcohol/expoxy propane(Fast quinoline-the 9- of 6- amino The base of amino -9)Ethylphosphonic acid (yield 72%).Its analyze data is as follows:1H NMR (300 MHz, D2O): δ8.23 (s, 1H), 3.50-3.15 (m, 2H), 2.01-1.83 (m, 2H) 。
Embodiment five:The synthesis of the third amino of 2- -2- (4- chlorphenyls) ethylphosphonic acid
Acetonitrile is added in the reactor(6 mL), 4- chlorostyrenes (0.139 gram, 1 mmol), propylamine (0.118 g, 2.0 Mmol), dimethyl phosphite (0.22 g, 2 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), in 40 DEG C of stirring reactions, TLC tracking reaction is until terminate for mixture.After reaction terminates, a half-reaction is taken out Liquid, it is concentrated after the crude by column chromatography that obtains separate(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product The third amino of thing 2- -2- (4- chlorphenyls) ethyl phosphonate(Yield 82%).Its analyze data is as follows:1H NMR (400 MHz, CDCl3): δ8.53 (s, 2H), 7.57–7.43 (m, 4H),4.11-4.31 (m, 2H), 3.64 (d, J = 10.8 Hz, 6H), 2.60-2.40 (m, 2H), 1.61-1.80 (m, 2H), 1.55-1.40 (m, 2H), 0.95-0.84 (m, 3H) 。
The hydrochloric acid of 7.5 mL 20%, mixture is added to be heated to reflux in remaining second half reaction solution in reaction bulb, TLC Tracking reaction is until terminate;Appropriate sodium hydroxide solution is added, is then concentrated to dryness reaction solution, with methyl alcohol/expoxy propane It is recrystallized to give the third amino of 2- -2- (4- chlorphenyls) ethylphosphonic acid (yield 71%).Its analyze data is as follows:1H NMR (300 MHz, D2O): δ7.58-7.22 (m, 4H), 4.13-4.34 (m, 1H), 2.63-2.42 (m, 2H),1.62-1.83 (m, 2H), 1.52-1.38 (m, 2H), 0.95-0.78 (m, 3H) 。
Embodiment six:The synthesis of 2- anilino- -2- phenylethyl phosphonic acids
Acetonitrile is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), aniline (0.186 g, 2.0 mmol), Dimethyl phosphite (0.22 g, 2 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 Mmol), in 40 DEG C of stirring reactions, TLC tracking reaction is until terminate for mixture.After reaction terminates, half reaction solution, warp are taken out The crude by column chromatography obtained after concentration is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product 2- Anilino- -2- phenylethyl phosphonate esters(Yield 86%).Its analyze data is as follows:1H NMR (400 MHz, CDCl3): δ 8.10 (s, 1H),7.18-7.42 (m, 5H), 6.60-7.10 (m, 5H), 4.11-4.31 (m, 1H), 3.63 (d, J = 10.8 Hz, 6H), 1.60-1.84 (m, 2H) 。
The hydrochloric acid of 7.5 mL 20%, mixture is added to be heated to reflux in remaining second half reaction solution in reaction bulb, TLC Tracking reaction is until terminate;Appropriate sodium hydroxide solution is added, is then concentrated to dryness reaction solution, with methyl alcohol/expoxy propane It is recrystallized to give 2- anilino-s -2- phenylethyls phosphonic acids (yield 76%).Its analyze data is as follows:1H NMR (300 MHz, D2O): δ7.41-7.30 (m, 5H), 7.15-7.00 (m, 2H), 6.90-6.60 (m, 3H), 4.09-4.25 (m, 1H), 1.63-1.78 (m, 2H) 。
Embodiment seven:2- amino -2-(4- cyano-phenyls)The synthesis of ethylphosphonic acid
Acetonitrile is added in the reactor(6 mL), 4- cyano styrenes (0.129g, 1 mmol), ammoniacal liquor (0.12g, 4.0 Mmol), dimethyl phosphite (0.22 g, 2 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), in 40 DEG C of stirring reactions, TLC tracking reaction is until terminate for mixture.After reaction terminates, a half-reaction is taken out Liquid, it is concentrated after the crude by column chromatography that obtains separate(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product Thing 2- amino -2-(4- cyano-phenyls)Ethyl phosphonate(Yield 78%).Its analyze data is as follows:1H NMR (400 MHz, CDCl3): δ8.90 (s, 2H), 7.80–7.40 (m, 4H),4.11-4.31 (m, 1H), 3.64 (d, J = 10.8 Hz, 6H), 1.61-1.80 (m, 2H) 。
The hydrochloric acid of 7.5 mL 20%, mixture is added to be heated to reflux in remaining second half reaction solution in reaction bulb, TLC Tracking reaction is until terminate;Appropriate sodium hydroxide solution is added, is then concentrated to dryness reaction solution, with methyl alcohol/expoxy propane It is recrystallized to give 2- amino -2-(4- cyano-phenyls)Ethylphosphonic acid (yield 68%).Its analyze data is as follows:1H NMR (300 MHz, CDCl3): δ7.79 (d, J = 7.2 Hz, 2 H), 7.44 (d, J = 6.9 Hz, 2 H), 4.60-4.49 (m, 1 H), 2.20-2.01 (m, 2 H) 。
Embodiment eight:2- amino -2-(4- nitrobenzophenones)The synthesis of ethylphosphonic acid
Acetonitrile is added in the reactor(6 mL), 4- nitrostyrolenes (0.15 g, 1 mmol), ammoniacal liquor (0.12 g, 4.0 Mmol), dimethyl phosphite (0.22 g, 2 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), in 40 DEG C of stirring reactions, TLC tracking reaction is until terminate for mixture.After reaction terminates, a half-reaction is taken out Liquid, it is concentrated after the crude by column chromatography that obtains separate(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product Thing 2- amino -2-(4- nitrobenzophenones)Ethyl phosphonate(Yield 81%).Its analyze data is as follows:1H NMR (400 MHz, CDCl3): δ8.90 (s, 2H), 8.20 (d, J = 7.8 Hz, 2H), 7.66 (d, J = 7.8 Hz, 2H), 4.11-4.31 (m, 1H), 3.64 (d, J = 10.8 Hz, 6H), 1.61-1.80 (m, 2H) 。
The hydrochloric acid of 7.5 mL 20%, mixture is added to be heated to reflux in remaining second half reaction solution in reaction bulb, TLC Tracking reaction is until terminate;Appropriate sodium hydroxide solution is added, is then concentrated to dryness reaction solution, with methyl alcohol/expoxy propane It is recrystallized to give 2- amino -2-(4- nitrobenzophenones)Ethylphosphonic acid (yield 72%).Its analyze data is as follows:1H NMR (300 MHz, CDCl3): δ 8.20 (d, J = 7.2 Hz, 2 H), 7.61 (d, J = 6.9 Hz, 2 H), 4.59- 4.51 (m, 1 H), 2.19-2.05 (m, 2 H) 。
Embodiment nine:The synthesis of 2- phenyl -2- (4- nitrobenzene amido) ethylphosphonic acid
Methyl alcohol is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), 4- nitroanilines (0.276 g, 2.0 Mmol), dimethyl phosphite (0.22 g, 2 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), in 40 DEG C of stirring reactions, TLC tracking reaction is until terminate for mixture.After reaction terminates, a half-reaction is taken out Liquid, it is concentrated after the crude by column chromatography that obtains separate(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product Thing 2- phenyl -2- (4- nitrobenzene amido) ethyl phosphonate(Yield 77%).Its analyze data is as follows:1H NMR (400 MHz, CDCl3): δ8.01 (d, J = 7.8 Hz, 2H), 7.18-7.42 (m, 5H), 6.92 (d, J = 7.8 Hz, 2H),6.80 (s, 1H), 4.11-4.31 (m, 1H), 3.64 (d, J = 10.8 Hz, 6H), 1.61-1.80 (m, 2H) 。
The hydrochloric acid of 7.5 mL 20%, mixture is added to be heated to reflux in remaining second half reaction solution in reaction bulb, TLC Tracking reaction is until terminate;Appropriate sodium hydroxide solution is added, is then concentrated to dryness reaction solution, with methyl alcohol/expoxy propane It is recrystallized to give 2- phenyl -2- (4- nitrobenzene amido) ethylphosphonic acid (yield 66%).Its analyze data is as follows:1H NMR (300 MHz, D2O): δ 8.10 (d, J = 7.2 Hz, 2 H), 7.46-7.10 (m, 5H),6.80 (d, J = 6.9 Hz, 2 H), 4.13-4.34 (m, 1H), 2.63-2.42 (m, 2H) 。
Embodiment ten:2- phenyl -2-(2- cyano-aniline bases)The synthesis of ethylphosphonic acid
Methyl alcohol is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), 2- cyano-anilines (0.236 g, 2.0 Mmol), phosphonous acid diethylester (0.276 gram, 2 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), in 40 DEG C of stirring reactions, TLC tracking reaction is until terminate for mixture.After reaction terminates, a half-reaction is taken out Liquid, it is concentrated after the crude by column chromatography that obtains separate(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product Thing 2- phenyl -2-(2- cyano-aniline bases)Ethyl phosphonate(Yield 80%).Its analyze data is as follows:1H NMR (400 MHz, CDCl3): δ 7.00-7.60 (m, 10H), 4.11-4.31 (m, 1H), 4.09−3.95 (m, 4H), 1.61-1.80 (m, 2H), 1.27 (t, J = 7.1 Hz, 6H) 。
The hydrochloric acid of 7.5 mL 20%, mixture is added to be heated to reflux in remaining second half reaction solution in reaction bulb, TLC Tracking reaction is until terminate;Appropriate sodium hydroxide solution is added, is then concentrated to dryness reaction solution, with methyl alcohol/expoxy propane It is recrystallized to give 2- phenyl -2-(2- cyano-aniline bases)Ethylphosphonic acid (yield 71%).Its analyze data is as follows:1H NMR (300 MHz, D2O): δ7.60-7.20 (m, 7H), 7.10-6.80 (m, 2H), 4.09-4.23 (m, 1H), 1.62-1.85 (m, 2H) 。
Embodiment 11:((2- phenyl -2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Formic acid is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), aniline (0.093 gram, 1 mmol), two Phenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 65%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3): δ7.79–7.68 (m, 4H), 7.56–7.42 (m, 6H), 7.37 (d, J = 7.2 Hz, 2H), 7.31–7.25 (m, 2H), 7.24–718 (m, 1H), 7.04 (dd, J = 8.3, 7.5 Hz, 2H), 6.65 (t, J = 7.3 Hz, 1H), 6.44 (d, J = 7.7 Hz, 2H), 5.79 (s, 1H), 4.60 (td, J = 9.8, 3.7 Hz, 1H), 2.89–2.65 (m, 2H) 。
Embodiment 12:((2- phenyl -2-(4- fluoroanilinos)Ethyl)The synthesis of diphenyl phosphine oxide
Acetic acid is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), 4- fluoroanilines (0.22 gram, 2 mmol), Diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 76%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3): δ7.78–7.68 (m, 4H), 7.57–7.43 (m, 6H), 7.35 (d, J = 7.2 Hz, 2H), 7.28 (t, J = 7.4 Hz, 2H), 7.25–7.18 (m, 1H), 6.81–6.67 (m, 2H), 6.47–6.32 (m, 2H), 5.57 (s, 1H), 4.49 (td, J = 9.9, 3.4 Hz, 1H), 2.87–2.64 (m, 2H) 。
Embodiment 13:((2- phenyl -2-(4- bromobenzene amidos)Ethyl)The synthesis of diphenyl phosphine oxide
Dichloromethane is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), 4- bromanilines (0.51 gram, 3 Mmol is good), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 30 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 86%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.76–7.68 (m, 4H), 7.58– 7.44 (m, 6H), 7.33–7.26 (m, 4H), 7.24–7.20 (m, 1H), 7.11 (d, J = 8.2 Hz, 2H), 6.32 (d, J = 8.2 Hz, 2H), 5.87 (s, 1H), 4.50 (t, J = 8 Hz, 1H), 2.85–2.69 (m, 2H) 。
Embodiment 14:((2-(3- tolyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Toluene is added in the reactor(6 mL), 3- methyl styrenes (0.118 gram, 1 mmol), aniline (0.373 gram, 4 mmol Keep), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 88%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.80–7.69 (m, 4H), 7.56– 7.43 (m, 6H), 7.18 (d, J = 3.2 Hz, 3H), 7.11–6.99 (m, 3H), 6.65 (t, J = 7.3 Hz, 1H), 6.48 (d, J = 7.8 Hz, 2H), 5.73 (s, 1H), 4.59 (td, J = 9.8, 3.8 Hz, 1H), 2.89–2.66 (m, 2H), 2.28 (s, 3H) 。
Embodiment 15:((2-(4- tolyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Toluene is added in the reactor(6 mL), 4- methyl styrenes (0.118 gram, 1 mmol), aniline (0.28 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 91%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.78–7.68 (m, 4H), 7.57– 7.40 (m, 6H), 7.25 (d, J = 8.0 Hz, 2H), 7.12–7.00 (m, 4H), 6.65 (t, J = 7.3 Hz, 1H), 6.46 (d, J = 7.7 Hz, 2H), 5.88 (s, 1H), 4.58 (td, J = 9.8, 3.8 Hz, 1H), 2.87–2.64 (m, 2H), 2.30 (s, 3H) 。
Embodiment 16:(2- phenyl -2-(4- chloroanilinos)Ethyl)The synthesis of diphenyl phosphine oxide
Dichloromethane is added in the reactor(6 mL), styrene (0.118 gram, 1 mmol), 4- chloroanilines (0.36 gram, 3 Mmol), diphenyl phosphine oxide (0.202 gram, 1 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 Gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;What reaction was obtained after terminating Crude by column chromatography is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 72%).Product Analyze data it is as follows:1H NMR (400 MHz, CDCl3): δ 7.78–7.67 (m, 4H), 7.57–7.43 (m, 6H), 7.35–7.26 (m, 4H), 7.21 (t, J = 7.1 Hz, 1H), 6.97 (d, J = 8.7 Hz, 2H), 6.36 (d, J = 8.7 Hz, 2H), 6.18 (s, 1H), 4.50 (td, J = 9.8, 3.5 Hz, 1H), 2.88– 2.66 (m, 2H) 。
Embodiment 17:((2-(3- fluorophenyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Methyl alcohol is added in the reactor(6 mL), 3- fluorobenzene ethenes (0.122 gram, 1 mmol), aniline (0.36 gram, 3 mmol), Diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 81%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3): δ 7.77–7.69 (m, 4H), 7.55–7.43 (m, 6H), 7.26– 7.20 (m, 1H), 7.14 (d, J = 7.7 Hz, 1H), 7.11–7.01 (m, 3H), 6.87 (td, J = 8.2, 2.1 Hz, 1H), 6.67 (t, J = 7.3 Hz, 1H), 6.43 (d, J = 7.8 Hz, 2H), 5.85 (s, 1H), 4.59 (td, J = 10.0, 3.8 Hz, 1H), 2.85–2.67 (m, 2H) 。
Embodiment 18:((2-(4- fluorophenyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Methyl alcohol is added in the reactor(6 mL), 4- fluorobenzene ethenes (0.122 gram, 1 mmol), aniline (0.36 gram, 3 mmol), Diphenyl phosphine oxide (0.404 gram, 2 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 82%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3):δ 7.77–7.66 (m, 4H), 7.55–7.50 (m, 2H), 7.49– 7.42 (m, 4H), 7.36–7.29(m, 2H), 7.05 (dd, J = 8.5, 7.4 Hz, 2H), 6.92 (t, J = 8.7 Hz, 2H), 6.67 (t, J = 7.3 Hz, 1H), 6.44 (d, J = 7.7 Hz, 2H), 5.99 (s, 1H), 4.62 (td, J = 10.0, 3.9 Hz, 1H), 2.87–2.66 (m, 2H) 。
Embodiment 19:(2- phenyl -2-(2- methoxybenzene amidos)Ethyl)The synthesis of diphenyl phosphine oxide
Methyl alcohol is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), 2- aminoanisoles (0.346 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 89%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.79–7.68 (m, 4H), 7.54– 7.39 (m, 6H), 7.35 (d, J = 7.2 Hz, 2H), 7.24 (t, J = 7.4 Hz, 2H), 7.17 (t, J = 7.2 Hz, 1H), 6.77–6.69 (m, 1H), 6.65–6.57 (m, 2H), 6.23 (s, 1H), 5.55 (s, 1H), 4.77 (td, J = 9.4, 4.2 Hz, 1H), 3.83 (s, 3H), 2.98–2.71 (m, 2H) 。
Embodiment 20:((2-(4- bromophenyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), 4- bromstyrols (0.181 gram, 1 mmol), aniline (0.278 gram, 3 mmol), Diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.170 gram, 1 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 66%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3): δ 7.79–7.63 (m, 4H), 7.59–7.41 (m, 6H), 7.35 (d, J = 7.5 Hz, 2H), 7.23 (d, J = 7.6 Hz, 2H), 7.06 (s, 2H), 6.67 (s, 1H), 6.43 (d, J = 6.2 Hz, 2H), 5.91 (s, 1H), 4.60 (s, 1H), 2.92–2.61 (m, 2H) 。
Embodiment 21:((2-(3- chlorphenyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), 3- chlorostyrenes (0.181 gram, 1 mmol), aniline (0.278 gram, 3 mmol), Diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 85%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3): δ 7.72 (d, J = 9.3 Hz, 4H), 7.58–7.40 (m, 6H), 7.33 (s, 1H), 7.27 (d, J = 8.0 Hz, 1H), 7.17 (d, J = 8.1 Hz, 2H), 7.05 (d, J = 6.9 Hz, 2H), 6.69 (t, J = 6.4 Hz, 1H), 6.44 (d, J = 7.2 Hz, 2H), 6.00 (s, 1H), 4.58 (t, J = 7.9 Hz,1H), 2.90–2.60 (m, 2H) 。
Embodiment 22:((2- phenyl -2- anilino-s)Ethyl)The synthesis of diethyl phosphonate
Acetonitrile is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), aniline (0.278 gram, 3 mmol), two Ethide phosphite ester (0.276 gram, 2 mmol), silver nitrate (0.510 gram, 3 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 92%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3): δ 7.43 (d, J = 7.4 Hz, 2H), 7.35 (t, J = 7.5 Hz, 2H), 7.25 (d, J = 7.2 Hz, 1H), 7.10 (t, J = 7.9 Hz, 2H), 6.69 (t, J = 7.3 Hz, 1H), 6.56 (d, J = 7.8 Hz, 2H), 5.26 (s, 1H), 4.73 (ddd, J = 13.3, 8.2, 5.5 Hz, 1H), 4.12–3.99 (m, 4H), 2.41–2.23 (m, 2H), 1.30–1.24 (m, 6H) 。
Embodiment 23:(2- phenyl -2-(3- toluidines)Ethyl)The synthesis of diphenyl phosphine oxide
Propionic acid is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), 3- methylanilines (0.321 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.510 gram, 3 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 87%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.79–7.69 (m, 4H), 7.56– 7.43 (m, 6H), 7.36 (d, J = 7.2 Hz, 2H), 7.29–7.25 (m, 2H), 7.20 (t, J = 7.2 Hz, 1H), 6.91 (t, J = 7.8 Hz, 1H), 6.48 (d, J = 7.4 Hz, 1H), 6.36 (s, 1H), 6.18 (d, J = 7.9 Hz, 1H), 5.85 (s, 1H), 4.61 (td, J = 9.8, 3.7 Hz, 1H), 2.87– 2.67 (m, 2H), 2.20 (s, 3H) 。
Embodiment 24:(2- phenyl -2-(2- tertiary-butyl anilinos)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), the 2- tert-butyl groups aniline (0.45 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 72%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.76–7.65 (m, 4H), 7.62– 7.37 (m, 7H), 7.32–7.28 (m, 2H), 7.19 (t, J = 7.3 Hz, 2H), 7.12 (t, J = 7.2 Hz, 1H), 6.88–6.82 (m, 1H), 6.70–6.58 (m, 1H), 6.28 (d, J = 8.0 Hz, 1H), 5.83 (s, 1H), 4.88–4.78 (m, 1H), 3.02–2.78 (m, 2H), 1.62 (s, 9H) 。
Embodiment 25:(2- phenyl -2-(2- ethylo benzene amidos)Ethyl)The synthesis of diphenyl phosphine oxide
Ethanol is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), 2- MEAs (0.363 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 79%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3) δ 7.80–7.72 (m, 4H), 7.57–7.43 (m, 6H), 7.40–7.34 (m, 2H), 7.31–7.26 (m, 2H), 7.24–7.18 (m, 1H), 7.11 (d, J = 6.9 Hz, 1H), 6.84 (td, J = 7.9, 1.5 Hz, 1H), 6.66 (td, J = 7.4, 0.8 Hz, 1H), 6.14 (d, J = 7.7 Hz, 1H), 5.88 (s, 1H), 4.68 (td, J = 10.0, 3.5 Hz, 1H), 2.96–2.78 (m, 2H), 2.77–2.62 (m, 2H), 1.41 (t, J = 7.5 Hz, 3H) 。
Embodiment 26:(2- phenyl -2-(2-aminotoluene base)Ethyl)The synthesis of diphenyl phosphine oxide
Ethanol is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), 2-aminotoluene (0.321 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 84%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.81–7.71 (m, 4H), 7.55– 7.43 (m, 6H), 7.38 (d, J = 7.3 Hz, 2H), 7.29 (t, J = 7.4 Hz, 2H), 7.22 (t, J = 7.2 Hz, 1H), 7.08 (d, J = 7.1 Hz, 1H), 6.84 (t, J = 7.4 Hz, 1H), 6.61 (t, J = 7.3 Hz, 1H), 6.14 (d, J = 8.0 Hz, 1H), 5.81 (s, 1H), 4.68 (td, J = 9.9, 3.3 Hz, 1H), 2.95–2.74 (m, 2H), 2.36 (s, 3H) 。
Embodiment 27:(2- phenyl -2-(4- toluidines)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), 4- methylanilines (0.321 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.028 gram, 0.1 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 67%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.79–7.69 (m, 4H), 7.55– 7.43 (m, 6H), 7.36 (d, J = 7.3 Hz, 2H), 7.30–7.25 (m, 2H), 7.20 (t, J = 7.2 Hz, 1H), 6.85 (d, J = 8.1 Hz, 2H), 6.36 (d, J = 8.3 Hz, 2H), 5.67 (s, 1H), 4.58 (td, J = 9.8, 3.5 Hz, 1H), 2.85–2.66 (m, 2H), 2.18 (s, 3H) 。
Embodiment 28:(1- methyl -2- phenyl -2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), Beta-methyl styrene (0.119 gram, 1 mmol), aniline (0.276 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 85%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.94–7.87 (m, 2H), 7.84– 7.75 (m, 2H), 7.62–7.48 (m, 4H), 7.43–7.38 (m, 2H), 7.37–7.31 (m, 4H), 7.31– 7.25 (m, 1H), 7.05 (t, J = 7.9 Hz, 2H), 6.68 (t, J = 7.3 Hz, 1H), 6.43 (d, J = 7.9 Hz, 2H), 5.79 (s, 1H), 4.44 (dd, J = 6.9, 2.7 Hz, 1H), 2.78–2.66 (m, 1H), 1.20 (dd, J = 15.5, 7.4 Hz, 3H) 。
Embodiment 29:((2-(3- methoxyphenyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), 3- methoxy styrenes (0.134 gram, 1 mmol), aniline (0.276 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.068 gram, 0.3 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 84%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.77 (s, 5H), 7.62–7.42 (m, 6H), 7.23 (s, 1H), 7.02 (d, J = 42.9 Hz, 4H), 6.73 (d, J = 33.5 Hz, 2H), 6.50 (s, 2H), 5.59 (s, 1H), 4.59 (s, 1H), 3.79 (s, 3H), 2.95–2.65 (m, 2H) 。
Embodiment 30:((2-(2- methoxyphenyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), 2- methoxy styrenes (0.134 gram, 1 mmol), aniline (0.276 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 86%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.83–7.75 (m, 2H), 7.71– 7.62 (m, 2H), 7.53–7.38 (m, 7H), 7.18–7.12 (m, 1H), 7.06 (t, J = 7.8 Hz, 2H), 6.86–6.76 (m, 2H), 6.64 (t, J = 7.2 Hz, 1H), 6.47 (d, J = 7.9 Hz, 2H), 5.91 (s, 1H), 4.99 (td, J = 10.8, 3.6 Hz, 1H), 3.86 (s, 3H), 3.00–2.71 (m, 2H) 。
Embodiment 31:((2-(2- aminomethyl phenyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), 2-methyl styrene (0.118 gram, 1 mmol), aniline (0.276 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 85%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.73 (s, 4H), 7.48 (d, J = 24.0 Hz, 7H), 7.06 (d, J = 32.3 Hz, 5H), 6.63 (s, 1H), 6.36 (s, 2H), 5.83 (s, 1H), 4.69 (s, 1H), 2.68 (d, J = 27.0 Hz, 2H), 2.22 (s, 3H) 。
Embodiment 32:(2- methyl -2- phenyl -2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), AMS (0.118 gram, 1 mmol), aniline (0.276 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 71%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.89 (dd, J = 10.7, 7.5 Hz, 2H), 7.76–7.51 (m, 7H), 7.50–7.45 (m, 1H), 7.44–7.37 (m, 2H), 7.36–7.31 (m, 2H), 7.26 (t, J = 7.2 Hz, 1H), 7.01 (t, J = 7.8 Hz, 2H), 6.65 (t, J = 7.0 Hz, 1H), 6.44 (s, 1H), 6.38 (d, J = 7.7 Hz, 2H), 3.02 (t, J = 12.8 Hz, 1H), 2.79 (dd, J = 15.1, 8.0 Hz, 1H), 1.76 (s, 3H) 。
Embodiment 33:((2-(2- bromophenyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), 2- bromstyrols (0.181 gram, 1 mmol), aniline (0.276 gram, 3 mmol), Diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 68%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3): δ 7.86–7.65 (m, 4H), 7.63 (dd, J = 7.8, 1.4 Hz, 1H), 7.54–7.42 (m, 7H), 7.17 (t, J = 7.5 Hz, 1H), 7.05 (t, J = 7.9 Hz, 3H), 6.65 (t, J = 7.3 Hz, 1H), 6.39 (d, J = 7.9 Hz, 2H), 6.25 (s, 1H), 4.84 (td, J = 10.5, 3.2 Hz, 1H), 2.93–2.63 (m, 2H) 。
Embodiment 34:(2- phenyl -2-(3- bromobenzene amidos)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), 3- bromanilines (0.51,3 mmol), two Phenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 87%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3) δ 7.78–7.67 (m, 4H), 7.57–7.44 (m, 6H), 7.34– 7.26 (m, 4H), 7.24–7.19 (m, 1H), 6.87 (t, J = 7.9 Hz, 1H), 6.75 (d, J = 7.7 Hz, 1H), 6.58 (s, 1H), 6.35 (d, J = 8.0 Hz, 1H), 6.04 (s, 1H), 4.54 (td, J = 9.5, 6.2 Hz, 1H), 2.85–2.67 (m, 2H) 。
Embodiment 35:((2-(4- chlorphenyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), 4- chlorostyrenes (0.138 gram, 1 mmol), aniline (0.278,3 mmol), Diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 82%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3): δ 7.75–7.66 (m, 4H), 7.54 (t, J = 7.2 Hz, 2H), 7.45 (t, J = 7.0 Hz, 4H), 7.31–7.27 (m, 2H), 7.19 (d, J = 8.4 Hz, 2H), 7.05 (t, J = 7.8 Hz, 2H), 6.68 (t, J = 7.3 Hz, 1H), 6.45 (d, J = 7.9 Hz, 2H), 6.07 (s, 1H), 4.61 (td, J = 10.1, 3.8 Hz, 1H), 2.88–2.64 (m, 2H) 。
Embodiment 36:((2-(2- chlorphenyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), 2- chlorostyrenes (0.138 gram, 1 mmol), aniline (0.278,3 mmol), Diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 66%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3): δ 7.84–7.77(m, 2H), 7.74–7.67 (m, 2H), 7.66– 7.60 (m, 1H), 7.55–7.41 (m, 6H), 7.31 (d, J = 4.9 Hz, 1H), 7.16–7.10 (m, 2H), 7.05 (t, J = 7.7 Hz, 2H), 6.66 (t, J = 7.2 Hz, 1H), 6.42 (d, J = 7.8 Hz, 2H), 6.05 (s, 1H), 4.93 (t, J = 9.0 Hz, 1H), 2.95–2.67 (m, 2H) 。
Embodiment 37:(2- phenyl -2-(3- methoxybenzene amidos)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), 3- aminoanisoles (0.369 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 91%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.79–7.69 (m, 4H), 7.56– 7.44 (m, 6H), 7.36 (d, J = 7.3 Hz, 2H), 7.26 (d, J = 7.6 Hz, 2H), 7.20 (t, J = 7.2 Hz, 1H), 6.95 (t, J = 8.1 Hz, 1H), 6.24 (dd, J = 8.1, 1.7 Hz, 1H), 6.09 (d, J = 7.7 Hz, 1H), 6.02 (s, 1H), 5.90 (s, 1H), 4.59 (td, J = 9.9, 3.4 Hz, 1H), 3.65 (s, 3H), 2.90–2.67 (m, 2H) 。
Embodiment 38:((2-(4- methoxyphenyls)- 2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), 4- methoxy styrenes (0.134 gram, 1 mmol), aniline (0.278 gram, 3 Mmol), diphenyl phosphine oxide (0.303 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 mmol), mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;After reaction terminates The crude by column chromatography for obtaining is separated(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 88%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.77–7.67 (m, 4H), 7.56– 7.38 (m, 6H), 7.27 (d, J = 8.7 Hz, 2H), 7.05 (t, J = 7.9 Hz, 2H), 6.78 (d, J = 8.7 Hz, 2H), 6.66 (t, J = 7.3 Hz, 1H), 6.47 (d, J = 7.9 Hz, 2H), 5.99 (s, 1H), 4.58 (td, J = 9.8, 3.8 Hz, 1H), 3.78 (s, 3H), 2.90–2.66 (m, 2H) 。
Embodiment 39:(2- phenyl -2- anilino-s)Ethyl)The synthesis of phosphonic acids diisopropyl ester
Acetonitrile is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), aniline (0.278,3 mmol), two is different Propylphosphite (0.332 gram, 2 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 85%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3): δ7.43 (d, J = 7.4 Hz, 2H), 7.35 (t, J = 7.5 Hz, 2H), 7.25 (d, J = 7.2 Hz, 1H), 7.09 (t, J = 7.9 Hz, 2H), 6.68 (t, J = 7.3 Hz, 1H), 6.54 (d, J = 7.9 Hz, 2H), 5.30 (s, 1H), 4.78–4.62 (m, 3H), 2.35–2.11 (m, 2H), 1.39–1.21 (m, 12H) 。
Example IV ten:(1,2- diphenyl -2- anilino-s)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), 1,2- talan (0.18 gram, 1 mmol), aniline (0.278,3 mmol), Diphenyl phosphine oxide (0.3 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 73%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3): δ 7.93–7.83 (m, 2H), 7.72–7.41 (m, 6H), 7.38– 4.34 (m, 1H), 7.29 (d, J = 7.1 Hz, 3H), 7.19–6.99 (m, 10H), 6.67 (t, J = 7.3 Hz, 1H), 6.48 (d, J = 7.9 Hz, 2H), 6.00 (s, 1H), 4.88–4.77 (m, 1H), 3.83 (d,J = 4.4 Hz, 1H) 。
Example IV 11:(2- phenyl -2- anilino-s)Ethyl)The synthesis of dimethyl phosphonate
Acetonitrile is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), aniline (0.278,3 mmol), hexichol Base phosphine oxide (0.3 gram, 1.5 mmol), silver nitrate (0.340 gram, 2 mmol), copper bromide (0.045 gram, 0.2 ), mmol mixture is in 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude product warp that reaction is obtained after terminating Column chromatography for separation(Petroleum ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 85%).The analysis number of product According to as follows:1H NMR (400 MHz, CDCl3): δ 7.43 (d, J = 7.4 Hz, 2H), 7.35 (t, J = 7.5 Hz, 2H), 7.25 (d, J = 7.2 Hz, 1H), 7.10 (t, J = 7.9 Hz, 2H), 6.69 (t, J = 7.3 Hz, 1H), 6.56 (d, J = 7.8 Hz, 2H), 5.26 (s, 1H), 4.73 (ddd, J = 13.3, 8.2, 5.5 Hz, 1H), 2.41–2.23 (m, 2H), 1.30–1.24 (s, 6H) 。
Example IV 12:(2- phenyl -2- amino)Ethyl)The synthesis of diphenyl phosphine oxide
Acetonitrile is added in the reactor(6 mL), styrene (0.104 gram, 1 mmol), diphenyl phosphine oxide (0.3 gram, 1.5 Mmol), silver nitrate (0.340 gram, 2 mmol) and copper bromide (0.045 gram, 0.2 mmol), are passed through ammonia, and mixture exists 40 DEG C of stirring reactions;TLC tracking reactions are until be fully completed;The crude by column chromatography that reaction is obtained after terminating is separated(Oil Ether/acetone/dichloromethane=20/1/1), obtain target product(Yield 73%).The analyze data of product is as follows:1H NMR (400 MHz, CDCl3): δ 7.77-7.60 (m, 2H), 7.55-7.40 (m, 8H), 7.35-7.20 (m, 5H), 5.11 (s, 2H), 4.05-3.90 (m, 1H), 2.04–1.80 (m, 2H)。

Claims (9)

1. a kind of preparation method of beta-amido ethylphosphonic acid derivative, it is characterised in that comprise the following steps, by ethylene derivative Thing, ammonia derivative, organic phosphine compound, silver nitrate, copper bromide and solvent are added in reactor, in 30~50 DEG C of reactions, reaction After end, beta-amido ethyl phosphine acyl derivative is obtained;Hydrochloric acid is subsequently adding, reaction is then refluxed for, beta-amido ethylphosphonic acid is obtained Derivative;
In molar ratio, ethene derivatives: ammonia derivative: organic phosphine compound: silver nitrate: copper bromide is 1: (1~4): (1~2): (1~3):(0.1~0.3);
The general structure of the ethene derivatives is:
Wherein R11、R4、R5Selection take one of following scheme:
(1)R11、R4All it is hydrogen, R5It is carboxyl;
(2) R4It is the one kind in methyl, bromine, phenyl, R5It is hydrogen, R11It is phenyl;
(3) R5It is the one kind in methyl, bromine, phenyl, R11It is phenyl, R4It is hydrogen;
(4) R4、R5All it is hydrogen, R11For
The structural formulaMiddle R1、R2、R3Selection take one of following scheme:
(1) R1It is the one kind in hydrogen, methyl, methoxyl group, ethyl, the tert-butyl group, fluorine, chlorine, bromine, cyano group and nitro, R2、R3All it is Hydrogen;
(2) R2It is the one kind in methyl, methoxyl group, ethyl, the tert-butyl group, fluorine, chlorine, bromine, cyano group and nitro, R1、R3All it is hydrogen;
(3) R3It is the one kind in methyl, methoxyl group, ethyl, the tert-butyl group, fluorine, chlorine, bromine, cyano group and nitro, R1、R2All it is hydrogen;
The general structure of the ammonia derivative is:, wherein R6It is hydrogen, methyl, ethyl, propyl group, hexyl, 6- acetyl ammonia Base-fast quinoline -9- bases, 2- cyano-phenyls or
The structural formulaIn, R7、R8And R9Selection take one of following scheme:
(1) R7During a kind of in for hydrogen, methyl, ethyl, the tert-butyl group, methoxyl group, fluorine, chlorine, bromine, nitro, R8And R9All it is hydrogen;
(2) R8During a kind of in for methyl, ethyl, the tert-butyl group, methoxyl group, fluorine, chlorine, bromine, nitro, R7And R9All it is hydrogen;
(3) R9During a kind of in for methyl, ethyl, the tert-butyl group, methoxyl group, fluorine, chlorine, bromine, nitro, R7And R8All it is hydrogen;
The organic phosphine compound is as shown in having structure formula:
R10It is the one kind in methoxyl group, ethyoxyl, isopropoxy, tert-butoxy, phenyl;
The solvent is selected from:One kind in methyl alcohol, ethanol, acetonitrile, acetic acid, propionic acid, dichloromethane or toluene;
The chemical structural formula of the beta-amido ethylphosphonic acid derivative is:
2. the preparation method of beta-amido ethylphosphonic acid derivative according to claim 1, it is characterised in that:The ethylene derivative Thing is selected from acrylic acid, styrene, 2-methyl styrene, 3- methyl styrenes, 4- methyl styrenes, 2- methoxy styrenes, 3- Methoxy styrene, 4- methoxy styrenes, 2- fluorobenzene ethenes, 3- fluorobenzene ethenes, 4- fluorobenzene ethenes, 2- bromstyrols, 3- bromines Styrene, 4- bromstyrols, 2- chlorostyrenes, 3- chlorostyrenes, 4- chlorostyrenes, AMS, Beta-methyl styrene, One kind in 1,2- diphenylethlenes, 4- cyano styrenes, 4- nitrostyrolenes;The ammonia derivative is selected from ammoniacal liquor, propylamine, benzene Amine, 2-aminotoluene, 3- methylanilines, 4- methylanilines, 2- aminoanisoles, 3- aminoanisoles, 4- aminoanisoles, 2- MEA, 2- tert-butyl groups aniline, 2- fluoroanilines, 3- fluoroanilines, 4- fluoroanilines, 2- chloroanilines, 3- chloroanilines, 4- chloroanilines, One kind in 2- bromanilines, 3- bromanilines, 4- bromanilines, 4- nitroanilines;The organic phosphine compound is selected from dimethyl phosphorous One kind in acid esters, diethyl phosphite, diisopropyl phosphite, diphenyl phosphine oxide.
3. the preparation method of beta-amido ethylphosphonic acid derivative according to claim 1, it is characterised in that:Prepare beta-amido second Using thin-layer chromatography tracking reaction until being fully completed during base phosphono derivative.
4. the preparation method of beta-amido ethylphosphonic acid derivative according to claim 1, it is characterised in that:In molar ratio, second Ene derivative: ammonia derivative: organic phosphine compound: silver nitrate: copper bromide is 1: 3: 1.5: 2: 0.2.
5. the preparation method of beta-amido ethylphosphonic acid derivative according to claim 1, it is characterised in that:The solvent is second Nitrile;The reaction temperature for preparing beta-amido ethyl phosphine acyl derivative is 40 DEG C.
6. the preparation method of beta-amido ethylphosphonic acid derivative according to claim 1, it is characterised in that:Prepare beta-amido second The reaction of base phosphono derivative carries out purification processes after terminating to product;After specially reaction terminates, reaction solution is through column chromatography point From obtaining beta-amido ethyl phosphine acyl derivative.
7. the preparation method of beta-amido ethylphosphonic acid derivative according to claim 1, it is characterised in that:The matter of the hydrochloric acid Amount concentration is 20%;In molar ratio, beta-amido ethyl phosphine acyl derivative: hydrochloric acid is 1: 2.
8. the preparation method of beta-amido ethylphosphonic acid derivative according to claim 1, it is characterised in that:During back flow reaction, Using thin-layer chromatography tracking reaction until being fully completed.
9. the preparation method of beta-amido ethylphosphonic acid derivative according to claim 1, it is characterised in that:Back flow reaction terminates Afterwards, sodium hydroxide solution is added in reaction solution, then reaction solution is concentrated to dryness, mesh is recrystallized to give with methyl alcohol/expoxy propane Mark product beta-amido ethylphosphonic acid derivative.
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* Cited by examiner, † Cited by third party
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CN108727428A (en) * 2018-07-09 2018-11-02 苏州大学 Beta-amino phosphonate derivative and preparation method thereof
CN108727428B (en) * 2018-07-09 2020-05-08 苏州大学 β -aminophosphonic acid derivatives and process for their preparation
WO2020010586A1 (en) * 2018-07-12 2020-01-16 苏州大学张家港工业技术研究院 β-AMINO PHOSPHONIC ACID DERIVATIVE AND PREPARATION METHOD THEREFOR
US11401288B2 (en) 2018-07-12 2022-08-02 Soochow University Beta-amino phosphonic acid derivative and preparation method therefor

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