CN105541569A - Synthesis method of 1-benzyloxy-2-[2-(3-methoxyphenyl)vinyl]benzene - Google Patents

Synthesis method of 1-benzyloxy-2-[2-(3-methoxyphenyl)vinyl]benzene Download PDF

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CN105541569A
CN105541569A CN201511010491.9A CN201511010491A CN105541569A CN 105541569 A CN105541569 A CN 105541569A CN 201511010491 A CN201511010491 A CN 201511010491A CN 105541569 A CN105541569 A CN 105541569A
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methoxy
benzyloxy
vinyl
benzene
phenyl
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CN105541569B (en
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夏秋景
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Suzhou Chenghe Pharmaceutical & Chemical Co Ltd
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Suzhou Chenghe Pharmaceutical & Chemical Co Ltd
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    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01Preparation of ethers
    • C07C41/18Preparation of ethers by reactions not forming ether-oxygen bonds
    • C07C41/30Preparation of ethers by reactions not forming ether-oxygen bonds by increasing the number of carbon atoms, e.g. by oligomerisation
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • 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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Abstract

The invention provides a method for synthesizing 1-benzyloxy-2-[2-(3-methoxyphenyl)vinyl]benzene. The method comprises the following steps: making diphenylmethoxyphosphine react with m-methoxybenzyl chloride at 55-60 DEG C to obtain m-methoxybenzyldiphenylphosphine oxide; adding a solvent and a basifier into the m-methoxybenzyldiphenylphosphine oxide; and keeping reactions at room temperature to obtain 1-benzyloxy-2-[2-(3-methoxyphenyl)vinyl]benzene. The synthesis preparation method is simple, mild in reaction and easy to implement.

Description

The synthetic method of a kind of 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene
Technical field
The invention belongs to organic compound synthesis technical field, particularly, relate to the synthetic method of a kind of 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene.
Background technology
1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene is the important intermediate improving ischemia all symptom medicines Sarpogrelatehydrochlorides such as ulcer, pain and creeping chill caused by chronic arteria occlusion disease.Traditional synthetic method, as shown in Figure 1, synthesize meta-methoxy benzyl diethyl phosphoric acid (Wittig reagent) with triethyl-phosphite and meta-methoxy benzyl chloride, need to use a large amount of or excessive triethyl-phosphite in its synthesis, because of through pyroreaction, and it is not bery stable, second-rate after reclaiming, can not reuse, intractability is very big, and processing costs is expensive.Sodium hydride is made in addition in the process of synthesis 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene, dangerous high, harsh to equipment requirements, control difficulty large, and mass yield is unstable.This name adopts phenylbenzene methoxyl group phosphorus and methoxyl group benzyl chloride Reactive Synthesis meta-methoxy benzyldiphenyl oxygen phosphorus (Wittig reagent), again at methanol as solvent, sodium methylate makes basifier synthesis 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene, the a small amount of phosphorus-containing wastewater of methyl alcohol recyclable recycling by-product, through conventional processing, can effectively be disposed.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, the invention provides the synthetic method of the simple 1-benzyloxy of a kind of preparation process-2-[2-(3-p-methoxy-phenyl) vinyl] benzene.
Technical scheme: the synthetic method that the invention provides a kind of meta-methoxy benzyldiphenyl oxygen phosphorus, phenylbenzene methoxyl group phosphorus and meta-methoxy benzyl chloride react to obtain meta-methoxy benzyldiphenyl oxygen phosphorus in 55 ~ 60 DEG C; In meta-methoxy benzyldiphenyl oxygen phosphorus, add solvent and basifier at room temperature react to obtain 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene.The synthetic method of 1-benzyloxy-2-of the present invention [2-(3-p-methoxy-phenyl) vinyl] benzene, wherein Wittig reagent (meta-methoxy benzyldiphenyl oxygen phosphorus) preparation employs different raw materials, make preparation process simple, and Wittig reagent preparation feedback is gentle.Two kinds of raw materials all drop into theoretical amount, effectively prevent the excessive and problem that recovery is difficult, process is difficult that causes of phosphorous raw material.In addition, the present invention's (Wittig reagent) meta-methoxy benzyldiphenyl oxygen phosphorus activity is active higher than former (Wittig reagent) meta-methoxy benzyl diethyl phosphoric acid far away, therefore follow-up reaction makes the basifier of work simple and easy to get, and reaction temperature and, effective solve former technique and use expensive and dangerous basifier greatly.In addition the recyclable recycling of by-product carbinol, and product yield, purity are high.
Concrete, the synthetic method of above-mentioned 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene, phenylbenzene methoxyl group phosphorus and meta-methoxy benzyl chloride are joined reaction unit, 55 ~ 60 DEG C are warming up under agitation condition, and react 8 ~ 12h at this temperature, reaction terminates rear cool to room temperature, obtains meta-methoxy benzyldiphenyl oxygen phosphorus; In meta-methoxy benzyldiphenyl oxygen phosphorus, add solvent and basifier, control temperature, at 10 ~ 20 DEG C, continues to drip solvent; 6 ~ 10h is incubated at 10 ~ 20 DEG C; Decompression and solvent recovery, to dry, add after water stirs and filters; Material water is washed till neutrality, in 55 ~ 60 DEG C of dry 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene.Method is reasonable, reaction temperature and, be easy to realize.
Further, the synthetic method of above-mentioned 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene, described solvent is methyl alcohol.Raw material sources are wide, and application cost is low.
Further, the synthetic method of above-mentioned 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene, described basifier is sodium methylate.Raw material sources are wide, and application cost is low.
Further, the synthetic method of above-mentioned 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene, described room temperature is 10 ~ 20 DEG C.Mild condition, is easy to realize.
Further, the synthetic method of above-mentioned 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene, described methyl alcohol is analytical pure methyl alcohol.The purity of solvent is high, the 1-benzyloxy-2-of preparation [2-(3-p-methoxy-phenyl) vinyl] benzene purity is high, and steady quality.
Further, the synthetic method of above-mentioned 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene, described sodium methylate purity >=99.5%.Basifier purity is high, the 1-benzyloxy-2-of preparation [2-(3-p-methoxy-phenyl) vinyl] benzene purity is high, and steady quality.
Beneficial effect: compared with prior art, the synthetic method of meta-methoxy benzyldiphenyl oxygen phosphorus of the present invention, and utilize this meta-methoxy benzyldiphenyl oxygen phosphorus to synthesize the method for 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene, have the following advantages:
(1) employ different raw materials in the preparation of Wittig reagent, make preparation process simple, and Wittig preparation feedback is gentle.Two kinds of raw materials all drop into theoretical amount, effectively prevent the excessive and problem that recovery is difficult, process is difficult that causes of phosphorous raw material.
(2) Wittig reagent meta-methoxy benzyldiphenyl oxygen phosphorus activity of the present invention is active higher than former Wittig reagent meta-methoxy benzyl diethyl phosphoric acid far away, therefore follow-up reaction makes the basifier of work simple and easy to get, and reaction temperature and, effective solve former technique and use expensive and dangerous basifier greatly.
(3) the recyclable recycling of methyl alcohol, and product yield, purity are high.
Accompanying drawing explanation
Fig. 1 is the synthetic route chart of traditional technology 1-benzyloxy-2-of the present invention [2-(3-p-methoxy-phenyl) vinyl] benzene;
Fig. 2 is the synthetic route chart of 1-benzyloxy-2-of the present invention [2-(3-p-methoxy-phenyl) vinyl] benzene.
Embodiment
By several specific embodiment, will illustrate the present invention further below, these embodiments, just in order to describe the problem, are not a kind of restriction.
Embodiment 1
Synthetic route as shown in Figure 2,
1) Wittig reagent meta-methoxy benzyldiphenyl oxygen phosphorus synthesis
99.5g(0.46mol is added in 1000ml reaction flask) phenylbenzene methoxyl group phosphorus and 72g(0.42mol) meta-methoxy benzyl chloride, be warming up to 55 DEG C under agitation condition, and be incubated 10 hours at this temperature, protect end and be cooled to 10 DEG C, directly enter the next step.
2) 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene synthesis
25.4g(0.47mol is added in above-mentioned Wittig reagent meta-methoxy benzyldiphenyl oxygen phosphorus) sodium methylate and 300ml methyl alcohol, control temperature 10 DEG C, drip 95.5g(0.45mol) 200ml methanol solution, drip at terminating maintenance 10 DEG C and be incubated 8 hours, insulation terminates, and reclaim under reduced pressure methyl alcohol, to dry, add after 500ml water stirs and filters, material water is washed till neutrality, 55 DEG C of dry 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene 132.9g(0.42mol).HPLC detection 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene purity 99.63%.
HPLC condition: moving phase: 800ml water; Acetonitrile 200ml.Determined wavelength: 254nm, flow velocity 1.0ml/min, sample 0.01g, is diluted to 25ml by moving phase, sample size 5 μ l.
Embodiment 2
Synthetic route as shown in Figure 2,
2) Wittig reagent meta-methoxy benzyldiphenyl oxygen phosphorus synthesis
95.2g(0.44mol is added in 1000ml reaction flask) phenylbenzene methoxyl group phosphorus and 77g(0.45mol) meta-methoxy benzyl chloride, be warming up to 60 DEG C under agitation condition, and be incubated 12 hours at this temperature, protect end and be cooled to 20 DEG C, directly enter the next step.
2) 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene synthesis
25.4g(0.47mol is added in above-mentioned Wittig reagent meta-methoxy benzyldiphenyl oxygen phosphorus) sodium methylate and 300ml methyl alcohol, control temperature 20 DEG C, drip 95.5g(0.45mol) 200ml methanol solution, drip at terminating maintenance 20 DEG C and be incubated 10 hours, insulation terminates, and reclaim under reduced pressure methyl alcohol, to dry, add after 500ml water stirs and filters, material water is washed till neutrality, 60 DEG C of dry 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene 134.5g(0.43mol).HPLC detection 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene purity 99.71%.
HPLC condition: moving phase: 800ml water; Acetonitrile 200ml.Determined wavelength: 254nm, flow velocity 1.0ml/min, sample 0.01g, is diluted to 25ml by moving phase, sample size 5 μ l.
Embodiment 3
Synthetic route as shown in Figure 2,
3) Wittig reagent meta-methoxy benzyldiphenyl oxygen phosphorus synthesis
99.5g(0.46mol is added in 1000ml reaction flask) phenylbenzene methoxyl group phosphorus and 72g(0.42mol) meta-methoxy benzyl chloride, be warming up to 58 DEG C under agitation condition, and be incubated 8 hours at this temperature, protect end and be cooled to 15 DEG C, directly enter the next step.
2) 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene synthesis
25.4g(0.47mol is added in above-mentioned Wittig reagent meta-methoxy benzyldiphenyl oxygen phosphorus) sodium methylate and 300ml methyl alcohol, control temperature 15 DEG C, drip 95.5g(0.45mol) 200ml methanol solution, drip at terminating maintenance 15 DEG C and be incubated 6 hours, insulation terminates, and reclaim under reduced pressure methyl alcohol, to dry, add after 500ml water stirs and filters, material water is washed till neutrality, 58 DEG C of dry 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene 135.8g(0.43mol).HPLC detection 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene purity 99.66%.
HPLC condition: moving phase: 800ml water; Acetonitrile 200ml.Determined wavelength: 254nm, flow velocity 1.0ml/min, sample 0.01g, is diluted to 25ml by moving phase, sample size 5 μ l.
The above is only several embodiments of invention, and it should be pointed out that for those skilled in the art, under the prerequisite not departing from inventive principle, can also make some improvement, these improvement also should be considered as protection scope of the present invention.

Claims (7)

1. a synthetic method for 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene, is characterized in that: phenylbenzene methoxyl group phosphorus and meta-methoxy benzyl chloride react to obtain meta-methoxy benzyldiphenyl oxygen phosphorus in 55 ~ 60 DEG C; In meta-methoxy benzyldiphenyl oxygen phosphorus, add solvent and basifier at room temperature react to obtain 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene.
2. the synthetic method of a 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene, it is characterized in that: phenylbenzene methoxyl group phosphorus and meta-methoxy benzyl chloride are joined reaction unit, 55 ~ 60 DEG C are warming up under agitation condition, and react 8 ~ 12h at this temperature, reaction terminates rear cool to room temperature, obtains meta-methoxy benzyldiphenyl oxygen phosphorus; In meta-methoxy benzyldiphenyl oxygen phosphorus, add solvent and basifier, control temperature, at 10 ~ 20 DEG C, continues to drip solvent; 6 ~ 10h is incubated at 10 ~ 20 DEG C; Decompression and solvent recovery, to dry, add after water stirs and filters; Material water is washed till neutrality, in 55 ~ 60 DEG C of dry 1-benzyloxy-2-[2-(3-p-methoxy-phenyl) vinyl] benzene.
3. the synthetic method of 1-benzyloxy-2-according to claim 1 and 2 [2-(3-p-methoxy-phenyl) vinyl] benzene, is characterized in that: described solvent is methyl alcohol.
4. the synthetic method of 1-benzyloxy-2-according to claim 1 and 2 [2-(3-p-methoxy-phenyl) vinyl] benzene, is characterized in that: described basifier is sodium methylate.
5. the synthetic method of 1-benzyloxy-2-according to claim 1 and 2 [2-(3-p-methoxy-phenyl) vinyl] benzene, is characterized in that: described room temperature is 10 ~ 20 DEG C.
6. the synthetic method of 1-benzyloxy-2-according to claim 3 [2-(3-p-methoxy-phenyl) vinyl] benzene, is characterized in that: described methyl alcohol is analytical pure methyl alcohol.
7. the synthetic method of 1-benzyloxy-2-according to claim 4 [2-(3-p-methoxy-phenyl) vinyl] benzene, is characterized in that: described sodium methylate purity >=99.5%.
CN201511010491.9A 2015-12-30 2015-12-30 A kind of 1 benzyloxy 2 [2(3 methoxyphenyls)Vinyl] benzene synthetic method Active CN105541569B (en)

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CN101723827A (en) * 2009-12-15 2010-06-09 上虞新和成生物化工有限公司 Preparation method of 4-acetoxyl-2-methyl-2-butylenoic aldehyde
CN103539812A (en) * 2013-09-25 2014-01-29 广州智特奇生物科技股份有限公司 Synthetic method for intermediate of vitamin D3 metabolite

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101723827A (en) * 2009-12-15 2010-06-09 上虞新和成生物化工有限公司 Preparation method of 4-acetoxyl-2-methyl-2-butylenoic aldehyde
CN103539812A (en) * 2013-09-25 2014-01-29 广州智特奇生物科技股份有限公司 Synthetic method for intermediate of vitamin D3 metabolite

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