CN115490666A - 4-噻吩亚甲基-2,6-二叔丁基-2,5-环己二烯-1-酮化合物的合成及应用 - Google Patents
4-噻吩亚甲基-2,6-二叔丁基-2,5-环己二烯-1-酮化合物的合成及应用 Download PDFInfo
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- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims 1
- 229910052794 bromium Inorganic materials 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 claims 1
- LGRLWUINFJPLSH-UHFFFAOYSA-N methanide Chemical compound [CH3-] LGRLWUINFJPLSH-UHFFFAOYSA-N 0.000 claims 1
- 150000004053 quinones Chemical class 0.000 claims 1
- 230000005764 inhibitory process Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 12
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
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- 238000010898 silica gel chromatography Methods 0.000 description 4
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- MGNZXYYWBUKAII-UHFFFAOYSA-N cyclohexa-1,3-diene Chemical compound C1CC=CC=C1 MGNZXYYWBUKAII-UHFFFAOYSA-N 0.000 description 2
- UZUODNWWWUQRIR-UHFFFAOYSA-L disodium;3-aminonaphthalene-1,5-disulfonate Chemical compound [Na+].[Na+].C1=CC=C(S([O-])(=O)=O)C2=CC(N)=CC(S([O-])(=O)=O)=C21 UZUODNWWWUQRIR-UHFFFAOYSA-L 0.000 description 2
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- AZQWKYJCGOJGHM-UHFFFAOYSA-N para-benzoquinone Natural products O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- FANCTJAFZSYTIS-IQUVVAJASA-N (1r,3s,5z)-5-[(2e)-2-[(1r,3as,7ar)-7a-methyl-1-[(2r)-4-(phenylsulfonimidoyl)butan-2-yl]-2,3,3a,5,6,7-hexahydro-1h-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol Chemical compound C([C@@H](C)[C@@H]1[C@]2(CCCC(/[C@@H]2CC1)=C\C=C\1C([C@@H](O)C[C@H](O)C/1)=C)C)CS(=N)(=O)C1=CC=CC=C1 FANCTJAFZSYTIS-IQUVVAJASA-N 0.000 description 1
- PSWDQTMAUUQILQ-UHFFFAOYSA-N 2-[(6-methoxy-4-methylquinazolin-2-yl)amino]-5,6-dimethyl-1h-pyrimidin-4-one Chemical compound N1=C(C)C2=CC(OC)=CC=C2N=C1NC1=NC(=O)C(C)=C(C)N1 PSWDQTMAUUQILQ-UHFFFAOYSA-N 0.000 description 1
- IQHSSYROJYPFDV-UHFFFAOYSA-N 2-bromo-1,3-dichloro-5-(trifluoromethyl)benzene Chemical group FC(F)(F)C1=CC(Cl)=C(Br)C(Cl)=C1 IQHSSYROJYPFDV-UHFFFAOYSA-N 0.000 description 1
- CVICEEPAFUYBJG-UHFFFAOYSA-N 5-chloro-2,2-difluoro-1,3-benzodioxole Chemical group C1=C(Cl)C=C2OC(F)(F)OC2=C1 CVICEEPAFUYBJG-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- JPUUAYFQHNNDBM-UHFFFAOYSA-N bicyclo[4.1.0]hepta-1(6),3-diene-2,5-dione Chemical compound O=C1C=CC(=O)C2=C1C2 JPUUAYFQHNNDBM-UHFFFAOYSA-N 0.000 description 1
- 229940125796 compound 3d Drugs 0.000 description 1
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- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
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- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
- C07D333/26—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D333/28—Halogen atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/20—Use of additives, e.g. for stabilisation
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
- C07D333/26—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D333/42—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms with nitro or nitroso radicals directly attached to ring carbon atoms
- C07D333/44—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms with nitro or nitroso radicals directly attached to ring carbon atoms attached in position 5
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic System
- C07F5/02—Boron compounds
- C07F5/025—Boronic and borinic acid compounds
Abstract
本发明提供一种噻吩环修饰的醌甲基类化合物。本发明还公开了所述化合物的制备方法。本发明提供该类化合物对苯乙烯具有很好的阻聚效果。该类噻吩环修饰的醌甲基类化合物的制备方法简单、成熟、易于掌控。
Description
技术领域
本发明涉及噻吩环修饰的醌甲基类化合物,具体涉及一种同时含有噻吩环、叔丁基、环己二烯以及亚甲基醌的噻吩环修饰的醌甲基类化合物的合成及应用。
背景技术
在石油化工中,苯乙烯的生产是最主要的工程技术之一。苯乙烯是一种应用广泛的有机原料,可用于生产聚苯乙烯,丁苯橡胶等合成树脂和合成橡胶。因此,苯乙烯可被广泛应用于涂料、制药、染料、纺织等工业。但由于苯乙烯单体双键比较活泼,可在无引发剂的常温环境下发生热激发聚合反应,且温度越高聚合越快。目前,工业生产苯乙烯最常用的方法是乙苯脱氢法,精馏塔内的温度可达到70-120℃,自聚问题严重。聚合物的生成不仅会造成反应单体损失,生产效率下降,还会使反应体系黏度增大,造成管线堵塞,严重时引发安全事故。因此,为了减少苯乙烯在精馏过程中的单体损失,阻止和延缓自聚过程,工业常采用向精馏过程中加入阻聚剂的方法,来达到苯乙烯阻聚效果。
发明内容
本发明所要解决的技术问题在于针对上述现有技术中的不足,提供一种噻吩环修饰的醌甲基类化合物的合成及应用。该化合物表现出对苯乙烯较好的阻聚效果。
为解决上述技术问题,本发明采用的技术方案是:一种噻吩环修饰的醌甲基类化合物,其特征在于,所述化合物的结构式(I)如下:
上述的噻吩环修饰的醌甲基类化合物,其特征在于,R为5-硝基、4-溴、 5-氯、5-硼酸。
另外,本发明还提供了一种制备上述噻吩环修饰的醌甲基类化合物的方法,其特征在于,所述的化合物的合成路线如下:
所述方法为:
按比例称取式1和2化合物,以及有机碱,加入溶剂溶解,在氮气氛围下反应8~10小时,反应结束后,降温至100℃,滴加磷酸,静置分液,饱和食盐水洗至中性,无水硫酸镁吸收多余的水分,分离提纯后得相应的式3a、 3b、3c或3d化合物。
进一步的,本发明还提供了上述的噻吩环修饰的醌甲基类化合物在苯乙烯阻聚中的应用。
下面结合附图和实施例,对本发明的技术方案做进一步的详细描述。
附图说明
附图1为本发明的噻吩环修饰的醌甲基类化合物对苯乙烯阻聚实验结果示意图。
具体实施方式
应当理解,本文所使用的诸如“具有”、“包含”以及“包括”术语并不排除一个或多个其它元件或其组合的存在或添加。
<实施1>
按比例称取式1化合物(2.4mmol)、式2a化合物(2.8mmol)、与哌嗪(4.8mmol),加入二氯甲烷溶剂20mL溶解,加热到130℃,反应8h 反应,过程中不断有泡沫产生。反应结束后,降温至100℃,慢慢滴加磷酸 (2.42mmol),反应1h后,静置分液,饱和食盐水洗至中性,静置分液,无水硫酸镁吸收多余的水分,过滤除去硫酸镁。然后减压蒸馏除去溶剂,在硅胶柱层析(石油醚∶乙酸乙酯=5∶1)分离提纯后得黄粘稠液体3a,产率 64.2%。
红外IR(KBr,cm-1):3124.59,2958.79,2856.62,1552.65,1459.25,1020.68,800.11,746.09。
<实施2>
按比例称取式1化合物(2.4mmol)、式2b化合物(2.8mmol)、与哌嗪(4.8mmol),加入二氯甲烷溶剂20mL溶解,加热到130℃,反应8h 反应,过程中不断有泡沫产生。反应结束后,降温至100℃,慢慢滴加磷酸 (2.4mmol),反应1h后,静置分液,饱和食盐水洗至中性,静置分液,无水硫酸镁吸收多余的水分,过滤除去硫酸镁。然后减压蒸馏除去溶剂,在硅胶柱层析(石油醚∶乙酸乙酯=5∶1)分离提纯后得黄绿色粘稠液体3b,产率63.7%。
红外IR(KBr,cm-1):3643.73,2924.80,2861.83,1672.53,1458.70,1230.13,1142.22,1022.53,884.47,745.13。
<实施3>
按比例称取式1化合物(2.4mmol)、式2c化合物(2.8mmol)、与哌嗪(4.8mmol),加入二氯甲烷溶剂20mL溶解,加热到130℃,反应8h 反应,过程中不断有泡沫产生。反应结束后,降温至100℃,慢慢滴加磷酸 (2.4mmol),反应1h后,静置分液,饱和食盐水洗至中性,静置分液,无水硫酸镁吸收多余的水分,过滤除去硫酸镁。然后减压蒸馏除去溶剂,在硅胶柱层析(石油醚∶乙酸乙酯=5∶1)分离提纯后得红褐色粘稠液体3c,产率77.1%。
红外IR(KBr,cm-1):3647.03,2924.39,1603.39,1459.17,1376.73, 1171.96,1143.44,808.44,745.35。
<实施4>
按比例称取式1化合物(2.4mmol)、式2d化合物(2.8mmol)、与哌嗪(4.8mmol),加入二氯甲烷溶剂20mL溶解,加热到130℃,反应8h 反应,过程中不断有泡沫产生。反应结束后,降温至100℃,慢慢滴加磷酸 (2.4mmol),反应1h后,静置分液,饱和食盐水洗至中性,静置分液,无水硫酸镁吸收多余的水分,过滤除去硫酸镁。然后减压蒸馏除去溶剂,在硅胶柱层析(石油醚∶乙酸乙酯=5∶1)分离提纯后得黄绿色粘稠液体3d,产率65.8%。
红外IR(KBr,cm-1):3434.33,2856.35,2075.92,1613.31,1457.53, 1091.75,1020.54,799.56。
<实施例5>
含实施例1、实施例2和实施例3中化合物3a、3b、3c和3d对苯乙烯的阻聚性能:
量取100mL苯乙烯放入圆底烧瓶中,在100℃的恒温油浴锅里加热,加热至苯乙烯聚合。记录苯乙烯开始聚合的时间。
吸取0.5mL的苯乙烯阻聚剂3a、3b、3c或3d,滴入装有100mL苯乙烯的圆底烧瓶中,在100℃的恒温油浴锅里加热至苯乙烯聚合。记录苯乙烯开始聚合的时间。
如图所示,未加阻聚剂前,苯乙烯从90分钟开始聚合,加入化合物3a、 3b、3c或3d后,苯乙烯开始聚合时间显著延迟,其中,化合物3d对苯乙烯阻聚效果最好,140分钟后苯乙烯才开始聚合。
尽管本发明的实施方案已公开如上,但其并不仅仅限于说明书和实施方式中所列运用。它完全可以被适用于各种适合本发明的领域。对于熟悉本领域的人员而言,可容易地实现另外的修改。因此在不背离权利要求及等同范围所限定的一般概念下,本发明并不限于特定的细节和这里示出与描述的图例。
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