CN110963907B - 一种2,2-二烷氧基苯乙酮衍生物的绿色合成 - Google Patents
一种2,2-二烷氧基苯乙酮衍生物的绿色合成 Download PDFInfo
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- 239000012043 crude product Substances 0.000 claims description 10
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- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 6
- 230000035484 reaction time Effects 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000002585 base Substances 0.000 claims description 3
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- 238000000034 method Methods 0.000 abstract description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 5
- 231100000331 toxic Toxicity 0.000 abstract description 2
- 230000002588 toxic effect Effects 0.000 abstract description 2
- 125000005605 benzo group Chemical group 0.000 abstract 1
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- 238000001514 detection method Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 229940125904 compound 1 Drugs 0.000 description 3
- UPIAQBGYLUPFBC-UHFFFAOYSA-N 2,2-dichloro-1-(4-methylphenyl)ethanone Chemical compound CC1=CC=C(C(=O)C(Cl)Cl)C=C1 UPIAQBGYLUPFBC-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- LHXZEQAXNOHKCG-UHFFFAOYSA-N 2,2-diethoxy-1-(4-methylphenyl)ethanone Chemical compound CCOC(OCC)C(=O)C1=CC=C(C)C=C1 LHXZEQAXNOHKCG-UHFFFAOYSA-N 0.000 description 1
- ZAEOTRADILVZPM-UHFFFAOYSA-N 2,2-dimethoxy-1-(4-methylphenyl)ethanone Chemical compound COC(OC)C(=O)C1=CC=C(C)C=C1 ZAEOTRADILVZPM-UHFFFAOYSA-N 0.000 description 1
- LNBMZFHIYRDKNS-UHFFFAOYSA-N 2,2-dimethoxy-1-phenylethanone Chemical compound COC(OC)C(=O)C1=CC=CC=C1 LNBMZFHIYRDKNS-UHFFFAOYSA-N 0.000 description 1
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 description 1
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- 239000003504 photosensitizing agent Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/64—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of functional groups containing oxygen only in singly bound form
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
本发明提供了一种2,2‑二烷氧基苯乙酮衍生物(1)的绿色合成,结构如下所示:R为烷基,R1为烷基、卤素、烷氧基、N,N‑二烷基胺或苯并环其中的一种或多种。该方法以2,2‑二氯苯乙酮衍生物、醇以及碱为原料,经加热搅拌得到目标产物2,反应完全后过滤,浓缩滤液即可得到高产率、高纯度的产物。该方法操作简单,副产物少,反应不产生任何有毒或对环境有害的物质。为目标产物1提供了新的合成方法。
Description
技术领域
本发明属于有机合成领域,涉及一种2,2-二烷氧基苯乙酮衍生物的绿色合成。
背景技术
2,2-二烷氧基苯乙酮衍生物是优异的辐射固化涂料的光敏剂。具有引发的量子效率高、 热稳定性好、无暗反应、与单体和预聚物有较好的相容性、光固化成膜无黄变或变色、安全且经济等特点。 此外,它还是单体保护的 α-二羰基化合物, 在合成上是一种重要的中间体。但目前的合成方法大多使用有毒的反应物或催化剂,或反应产率低,产生大量的废物。
发明内容
本发明的目的为一种2,2-二烷氧基苯乙酮衍生物的绿色合成。
本发明的目的可以通过以下技术方案来实现:
化合物1与醇(ROH)在碱催化下加热搅拌得到目标产物2,
一种稳定同位素标记酚酞的合成方法,该方法具体包括以下步骤:
(1)化合物1与醇(ROH)在碱催化下加热搅拌,反应完全后得到混合物1。
(2)将步骤(1)得到的混合物1冷却至室温,过滤,固体用ROH洗涤2-3次,浓缩滤液和洗涤液得到目标产物2的粗品,纯度为98%,硅胶柱分离得到纯品。
进一步,所述步骤(1)中摩尔比为:化合物1:ROH:碱=1:50-200:2-4。
进一步,所述步骤(1)中碱选自碳酸钠、碳酸钾、碳酸铯。
进一步,所述步骤(1)中加热温度为80~130 ℃。
进一步,所述步骤(1)中反应时间为8-36小时。
具体实施方式
为更好的理解本发明内容,下面结合具体实施例作进一步说明,但本发明不仅局限于此。
实施例1
在烧瓶中加入2.03g(10mmol)2,2-二氯-4'-甲基苯乙酮、20mL甲醇、3.18g碳酸钠,在80℃下搅拌反应,反应通过TLC监测,大约12h左右反应完全,冷却至室温,过滤出固体,固体用2 X 10mL甲醇洗涤两次。合并滤液和洗涤液,减压浓缩,得到粗产物。GC检测纯度98.0%,硅胶柱分离得到1.84g 2,2-二甲氧基-4'-甲基苯乙酮,产率95%。
实施例2
过程同实施例1,碳酸钠改为2.06g,反应时间为16h,粗产物GC检测纯度95.0%,分离产率90%。
实施例3
过程同实施例1,反应温度改为60℃,反应时间为30h,粗产物GC检测纯度96.0%,分离产率90%。
实施例4
过程同实施例1,反应温度改为100℃,反应时间为10h,粗产物GC检测纯度97.0%,分离产率94%。
实施例5
过程同实施例1,碳酸钠改为碳酸钾4.14g,反应时间为10h,粗产物GC检测纯度97.0%,分离产率93%。
实施例6
在烧瓶中加入2.03g(10mmol)2,2-二氯-4'-甲基苯乙酮、20mL乙醇、3.18g碳酸钠,在90℃下搅拌反应,反应通过TLC监测,大约12h左右反应完全,冷却至室温,过滤出固体,固体用2 X 10mL甲醇洗涤两次。合并滤液和洗涤液,减压浓缩,得到粗产物。GC检测纯度98.0%,硅胶柱分离得到2.13g 2,2-二乙氧基-4'-甲基苯乙酮,产率96%。
实施例7
在烧瓶中加入1.88g(10mmol)2,2-二氯-苯乙酮、20mL甲醇、3.18g碳酸钠,在80℃下搅拌反应,反应通过TLC监测,大约12h左右反应完全,冷却至室温,过滤出固体,固体用2X 10mL甲醇洗涤两次。合并滤液和洗涤液,减压浓缩,得到粗产物。GC检测纯度98.0%,硅胶柱分离得到1.73g 2,2-二甲氧基苯乙酮,产率96%。
Claims (1)
1.一种2,2-二烷氧基苯乙酮衍生物的绿色合成,其特征是,
化合物2,2-二氯苯乙酮衍生物与ROH在碱催化下加热搅拌得到目标产物2,反应完全后冷却至室温,过滤,固体用ROH洗涤2-3次,浓缩滤液和洗涤液得到目标产物2的粗品,纯度为98%,硅胶柱分离得到纯品;
反应式如下所示:其中R为甲基,R1为烷基或烷氧基;
摩尔比为2,2-二氯苯乙酮衍生物:ROH:碱=1:50-200:2-4;
碱选自碳酸钠、碳酸钾;
加热温度为60-100℃;反应时间为10-30h。
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