CN107032971B - 一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法 - Google Patents
一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法 Download PDFInfo
- Publication number
- CN107032971B CN107032971B CN201710287133.5A CN201710287133A CN107032971B CN 107032971 B CN107032971 B CN 107032971B CN 201710287133 A CN201710287133 A CN 201710287133A CN 107032971 B CN107032971 B CN 107032971B
- Authority
- CN
- China
- Prior art keywords
- carbonyl
- dimethyl
- octenal
- reaction
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- SLFNHDSUZRWUEB-UHFFFAOYSA-N CC(=CC=O)CCC(C(C)C)=C=O Chemical compound CC(=CC=O)CCC(C(C)C)=C=O SLFNHDSUZRWUEB-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 55
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 27
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000007864 aqueous solution Substances 0.000 claims abstract description 16
- 239000000243 solution Substances 0.000 claims abstract description 16
- 230000007935 neutral effect Effects 0.000 claims abstract description 13
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical group CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000012043 crude product Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 9
- 239000000706 filtrate Substances 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 239000012044 organic layer Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 51
- 239000003208 petroleum Substances 0.000 claims description 17
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 6
- 239000012295 chemical reaction liquid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000004440 column chromatography Methods 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 239000003480 eluent Substances 0.000 claims description 3
- 239000012046 mixed solvent Substances 0.000 claims description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000741 silica gel Substances 0.000 abstract description 7
- 229910002027 silica gel Inorganic materials 0.000 abstract description 7
- 239000012467 final product Substances 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 10
- YHQGMYUVUMAZJR-UHFFFAOYSA-N α-terpinene Chemical compound CC(C)C1=CC=C(C)CC1 YHQGMYUVUMAZJR-UHFFFAOYSA-N 0.000 description 10
- 238000001704 evaporation Methods 0.000 description 8
- 239000002994 raw material Substances 0.000 description 6
- WSTYNZDAOAEEKG-UHFFFAOYSA-N Mayol Natural products CC1=C(O)C(=O)C=C2C(CCC3(C4CC(C(CC4(CCC33C)C)=O)C)C)(C)C3=CC=C21 WSTYNZDAOAEEKG-UHFFFAOYSA-N 0.000 description 5
- -1 aromatic terpenoid aldehyde ketone Chemical class 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000004817 gas chromatography Methods 0.000 description 4
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 4
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- KVSVOZKRNQCDOV-UHFFFAOYSA-N CC(C)C(=CC=O)CCC(=C=O)C Chemical compound CC(C)C(=CC=O)CCC(=C=O)C KVSVOZKRNQCDOV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- NEHNMFOYXAPHSD-UHFFFAOYSA-N citronellal Chemical compound O=CCC(C)CCC=C(C)C NEHNMFOYXAPHSD-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 235000013599 spices Nutrition 0.000 description 2
- 235000009024 Ceanothus sanguineus Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000003553 Leptospermum scoparium Species 0.000 description 1
- 235000015459 Lycium barbarum Nutrition 0.000 description 1
- ZVQOOHYFBIDMTQ-UHFFFAOYSA-N [methyl(oxido){1-[6-(trifluoromethyl)pyridin-3-yl]ethyl}-lambda(6)-sulfanylidene]cyanamide Chemical compound N#CN=S(C)(=O)C(C)C1=CC=C(C(F)(F)F)N=C1 ZVQOOHYFBIDMTQ-UHFFFAOYSA-N 0.000 description 1
- 239000013566 allergen Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229930003633 citronellal Natural products 0.000 description 1
- 235000000983 citronellal Nutrition 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- WTEVQBCEXWBHNA-JXMROGBWSA-N geranial Chemical class CC(C)=CCC\C(C)=C\C=O WTEVQBCEXWBHNA-JXMROGBWSA-N 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 238000007539 photo-oxidation reaction Methods 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- 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
- C07C45/65—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 splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups
- C07C45/66—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 splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups by dehydration
-
- 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
- C07C45/56—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds
- C07C45/57—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds with oxygen as the only heteroatom
- C07C45/59—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds with oxygen as the only heteroatom in five-membered rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D307/10—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/12—Radicals substituted by oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D307/28—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
本发明公开了一种3,7‑二甲基‑6‑羰基‑2‑辛烯醛的制备方法。本发明在室温下,将4H‑5‑(1‑羟基‑1‑甲基乙基)‑2‑甲基‑2‑呋喃乙醛溶于质量分数为45~55%的硫酸水溶液中,搅拌反应12~18h,反应结束后用质量分数为氢氧化钠水溶液调节反应液pH至中性后,用乙醚提取,所得的有机层干燥,过滤,滤液浓缩后得到3,7‑二甲基‑6‑羰基‑2‑辛烯醛粗产物,再经硅胶柱分离,即得到高纯度的3,7‑二甲基‑6‑羰基‑2‑辛烯醛。本发明的制备方法制备过程简单,操作方便,收率高,最终产物3,7‑二甲基‑6‑羰基‑2‑辛烯醛纯度高,且生产成本较低,适于工业化生产。
Description
技术领域
本发明涉及一种芳香的萜类醛酮的制备方法,更具体的说是涉及一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法。
背景技术
3,7-二甲基-6-羰基-2-辛烯醛是一种广泛存在于各种花草、植物和烟草中的C13-降异戊二烯衍生物,同时,也是柠檬醛的衍生物。是一种十分有用的香料和医药中间体,特别在香料、食品和医药行业中,有着广泛的应用。
有关3,7-二甲基-6-羰基-2-辛烯醛的合成文献报道很少。1989年,德国科学家Carl G等用α-松油烯为原料,在-78℃条件下进行臭氧化反应,然后用二甲硫醚进行还原,得到30%的3,7-二甲基-6-羰基-2-辛烯醛和70%的3-异丙基-6-羰基-2-庚烯醛混合物。这种方法反应条件较苛刻,副产物多,产率低。
2002年,俄国科学家Yarovaya O I等(Transformations of 6,7-epoxyderivatives of citral and citronellal in various acidic media[J],Russian ofjournal of organic chemistry,2002,38(11):1594-1605)用8,9-环氧柠檬醛为原料,在酸性条件下进行8,9-环氧柠檬醛重排反应研究,结果发现用HSO3F-SO2FCl做催化剂,在-115℃条件下反应,产物主要以反式3,7-二甲基-6-羰基-2-辛烯醛为主,反式与顺式的比例为3:1;用TiO2/SO4 2-做催化剂,室温反应10min,反式与顺式的比例为5:3。这种方法虽然副产物较少,但催化剂不易得到,反应条件苛刻,原料也不易得到。
2012年,瑞典科学家Johanna R(α-Terpinene,an autioxidant in tea treeoil,autoxidizes rapidly to skin allergens on air exposure[J],ChemicalResearch Toxicology,2012,25:713-721)等也以α-松油烯为原料,研究α-松油烯在空气中的抗氧化性。除了得到少量的3,7-二甲基-6-羰基-2-辛烯醛产物外,还得到许多α-松油烯环氧的副产物。这种方法副产物多,产率低,混合物分离困难。
2013年,法国科学家Filippo R(visible-light photosensitizes oxidation ofɑ-terpinene using novel silica-supported sensitizers:photooxygenationvs.Photodehydrogenation[J],Journal of Catalysis,2013,303:164-174)等研究在各种光敏化剂存在下,对α-松油烯的空气氧化反应,得到了少量的3,7-二甲基-6-羰基-2-辛烯醛和3-异丙基-6-羰基-2-庚烯醛。还有大量的副产物生成。
综上所述,因此,目前迫切需要提供一种原料易得、制备过程简单、操作方便、高产率、高纯度的3,7-二甲基-6-羰基-2-辛烯醛的制备方法。
发明内容
本发明的目的是为了解决上述的技术问题而提供一种原料易得、制备过程简单、操作方便、高得率、高纯度的3,7-二甲基-6-羰基-2-辛烯醛的制备方法。
本发明提供一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法,将4H-5-(1-羟基-1-甲基乙基)-2-甲基-2-呋喃乙醛溶于中等浓度的硫酸水溶液中,在室温下进行反应,得到的3,7-二甲基-6-羰基-2-辛烯醛粗产物再经硅胶柱分离、淋洗剂淋洗,除去石油醚和乙酸乙酯,最后得到无色的3,7-二甲基-6-羰基-2-辛烯醛,其机理如下式所示:
上述的反应式中首先是原料4H-5-(1-羟基-1-甲基乙基)-2-甲基-2-呋喃乙醛在酸性条件下脱水,得到中间体阳离子(I),所得的中间体阳离子(I)再经过脱氢和水合开环,得到中间体醛酮(II),最后,中间体醛酮(II)再在酸性条件下脱水,得到3,7-二甲基-6-羰基-2-辛烯醛。
本发明发明的技术方案具体介绍如下。
一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法,具体步骤如下:
(1)将4H-5-(1-羟基-1-甲基乙基)-2-甲基-2-呋喃乙醛和45~55wt%的硫酸水溶液混合后,室温搅拌反应12~18h;反应结束后用氢氧化钠水溶液调节反应液pH至中性得到反应液;其中:4H-5-(1-羟基-1-甲基乙基)-2-甲基-2-呋喃乙醛和硫酸水溶液的投料比为1mol:0.40L~1mol:3.00L;
(2)将步骤(1)中所得的中性反应液用有机溶剂萃取,所得的有机层干燥、过滤,滤液浓缩粗品,粗品经柱层析得到3,7-二甲基-6-羰基-2-辛烯醛。
本发明中,步骤(1)中,氢氧化钠的浓度为4~8wt%。
本发明中,步骤(2)中,有机溶剂为乙醚;用无水硫酸镁或无水硫酸钠进行干燥。
本发明中,步骤(2)中,柱层析时,以石油醚和乙酸乙酯的混合溶剂为淋洗剂,其中,石油醚和乙酸乙酯的体积比为7:1~12:1。
和现有技术相比,本发明的有益效果在于:
本发明的3,7-二甲基-6-羰基-2-辛烯醛的制备方法,采用中等浓度的硫酸反应,得到的是单一产物3,7-二甲基-6-羰基-2-辛烯醛,从而省去了繁杂的后处理过程,因此本发明的3,7-二甲基-6-羰基-2-辛烯醛的制备方法具有制备过程简单,操作方便,最终产物3,7-二甲基-6-羰基-2-辛烯醛的得率和纯度高等特点。
进一步,本发明的3,7-二甲基-6-羰基-2-辛烯醛的制备方法中所用的4H-5-(1-羟基-1-甲基乙基)-2-甲基-2-呋喃乙醛原料易得,价格低廉,所以本发明的3,7-二甲基-6-羰基-2-辛烯醛的制备方法生产成本较低,适于工业化生产。
具体实施方式
下面通过实施例对本发明进一步详细描述,但并不限制本发明。
本发明所用的各种分析仪器的型号及生产厂家的信息如下:
6890N-5973GC-MS,美国安捷伦公司生产;
本发明的各实施例中所用的设备及生产厂家的信息如下:
ZX-98旋转蒸发仪,上海豫康科教仪器设备有限公司生产;
硅胶柱(2.5cm×50cm),上海正慧工贸有限公司生产。
实施例1
一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法,包括下列步骤:
(1)、在室温下,将4H-5-(1-羟基-1-甲基乙基)-2-甲基-2-呋喃乙醛1.01g(98.90%,5.37mmoL)溶于质量分数为50%的硫酸水溶液2.00mL中,搅拌反应16h,结束反应,并用质量分数为5%的氢氧化钠水溶液调节反应后的溶液pH至中性,得到反应液;
(2)、将步骤(1)中所得的中性反应液用乙醚提取,所得的有机层用无水MgSO4干燥,翌日用滤纸过滤,所得的滤液用旋转蒸发仪蒸发、浓缩后得到3,7-二甲基-6-羰基-2-辛烯醛粗产物0.78g,气相色谱含量91.36%,得率78.99%;
(3)、将步骤(2)得到的3,7-二甲基-6-羰基-2-辛烯醛粗产物用硅胶柱分离,用石油醚和乙酸乙酯按体积比即石油醚:乙酸乙酯为10:1的比例组成的混合溶剂作淋洗剂淋洗,蒸去石油醚和乙酸乙酯混合溶剂,最终得到0.54g的无色的3,7-二甲基-6-羰基-2-辛烯醛纯品,得率为69.23%,纯度大于98.00%。
上述所得的3,7-二甲基-6-羰基-2-辛烯醛的气质联用质谱数据如下:
MS:154(M+.),143,128,111,85,73(100),59,55,50。
通过上述所得的3,7-二甲基-6-羰基-3-辛烯-1-醛的质谱数据分析,结果表明,本发明制备方法所得的产物即为3,7-二甲基-6-羰基-2-辛烯醛。
实施例2
一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法,包括下列步骤:
(1)、在室温下,将4H-5-(1-羟基-1-甲基乙基)-2-甲基-2-呋喃乙醛1.05g(98.90%,5.58mmoL)溶于质量分数50%的硫酸水溶液5.00mL中,搅拌反应16h,结束反应,并用质量分数为5%的氢氧化钠水溶液调节反应后的溶液pH至中性,得到反应液;
(2)、将步骤(1)中所得的中性反应液用乙醚提取,所得的有机层用无水MgSO4干燥,翌日用滤纸过滤,所得的滤液用旋转蒸发仪蒸发、浓缩后得到3,7-二甲基-6-羰基-2-辛烯醛粗产物0.84g,气相色谱含量91.56%,得率81.99%;
(3)、将步骤(2)得到的3,7-二甲基-6-羰基-2-辛烯醛粗产物用硅胶柱分离,用石油醚和乙酸乙酯按体积比即石油醚:乙酸乙酯为10:1的比例组成的混合溶剂作淋洗剂淋洗,蒸去石油醚和乙酸乙酯溶剂,最终得到0.60g的无色的3,7-二甲基-6-羰基-2-辛烯醛纯品,得率为71.43%,纯度大于98.00%。
实施例3
一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法,包括下列步骤:
(1)、在室温下,将4H-5-(1-羟基-1-甲基乙基)-2-甲基-2-呋喃乙醛1.02g(98.90%,5.42mmoL)溶于质量分数45%的硫酸水溶液10.00mL中,搅拌反应16h,结束反应,并用质量分数为5%的氢氧化钠水溶液调节反应后的溶液pH至中性,得到反应液;
(2)、将步骤(1)中所得的中性反应液用乙醚提取,所得的有机层用无水MgSO4干燥,翌日用滤纸过滤,所得的滤液用旋转蒸发仪蒸发、浓缩后得到3,7-二甲基-6-羰基-2-辛烯醛粗产物0.83g,经检测,气相色谱含量94.28%,得率85.88%;
(3)、将步骤(2)得到的3,7-二甲基-6-羰基-2-辛烯醛粗产物用硅胶柱分离,用石油醚和乙酸乙酯按体积比即石油醚:乙酸乙酯为10:1的比例组成的混合溶剂作淋洗剂淋洗,体积比为10:1,蒸去石油醚和乙酸乙酯溶剂,最终得到0.63g的无色的3,7-二甲基-6-羰基-2-辛烯醛纯品,得率为75.90%,纯度大于98.00%。
实施例4
一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法,包括下列步骤:
(1)、在室温下,将4H-5-(1-羟基-1-甲基乙基)-2-甲基-2-呋喃乙醛1.06g(98.90%,5.64mmoL)溶于质量分数55%的硫酸水溶液15.00mL中,搅拌反应16h,结束反应,并用质量分数为5%的氢氧化钠水溶液调节反应后的溶液pH至中性,得到反应液;
(2)、将步骤(1)中所得的中性反应液用乙醚提取,所得的有机层用无水MgSO4干燥,翌日用滤纸过滤,所得的滤液用旋转蒸发仪蒸发、浓缩后得到3,7-二甲基-6-羰基-2-辛烯醛粗产物0.80g,经检测,气相色谱含量94.78%,得率80.08%;
(3)、将步骤(2)得到的3,7-二甲基-6-羰基-2-辛烯醛粗产物用硅胶柱分离,用石油醚和乙酸乙酯按体积比即石油醚:乙酸乙酯为10:1的比例组成的混合溶剂作淋洗剂淋洗,体积比为10:1,蒸去石油醚和乙酸乙酯溶剂,最终得到0.56g的无色的3,7-二甲基-6-羰基-2-辛烯醛纯品,得率为70.00%,纯度大于98.00%。
上述内容仅为本发明构思下的基本说明,而依据本发明的技术方案所作的任何等效变换,均应属于本发明的保护范围。
Claims (4)
1.一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法,其特征在于,具体步骤如下:
(1)将4H-5-(1-羟基-1-甲基乙基)-2-甲基-2-呋喃乙醛和45~55wt%的硫酸水溶液混合后,室温搅拌反应12~18h;反应结束后用氢氧化钠水溶液调节反应液pH至中性得到反应液;其中:4H-5-(1-羟基-1-甲基乙基)-2-甲基-2-呋喃乙醛和硫酸水溶液的投料比为1mol:0.40L~1mol:3.00L;
(2)将步骤(1)中所得的中性反应液用有机溶剂萃取,所得的有机层干燥、过滤,滤液浓缩粗品,粗品经柱层析得到3,7-二甲基-6-羰基-2-辛烯醛。
2.根据权利要求1所述的制备方法,其特征在于:步骤(1)中,氢氧化钠水溶液的浓度为4~8wt%。
3.根据权利要求1所述的制备方法,其特征在于,步骤(2)中,有机溶剂为乙醚;用无水硫酸镁或无水硫酸钠进行干燥。
4.如权利要求1所述的制备方法,其特征在于,步骤(2)中,柱层析时,以石油醚和乙酸乙酯的混合溶剂为淋洗剂,其中,石油醚和乙酸乙酯的体积比为7:1~12:1。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710287133.5A CN107032971B (zh) | 2017-04-27 | 2017-04-27 | 一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710287133.5A CN107032971B (zh) | 2017-04-27 | 2017-04-27 | 一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107032971A CN107032971A (zh) | 2017-08-11 |
CN107032971B true CN107032971B (zh) | 2020-05-12 |
Family
ID=59535780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710287133.5A Expired - Fee Related CN107032971B (zh) | 2017-04-27 | 2017-04-27 | 一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107032971B (zh) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1683298A (zh) * | 2005-03-07 | 2005-10-19 | 中国科学院广州化学研究所 | 4-(1,5-二甲基-1-乙烯基-4-己烯基)苯酚的合成新方法 |
CN101880221A (zh) * | 2010-06-22 | 2010-11-10 | 上海师范大学 | 一锅法制备辛烯醛的工艺 |
CN102093182A (zh) * | 2011-02-25 | 2011-06-15 | 江南大学 | 一种常温下空气氧化香茅醇高效制备香茅醛的方法 |
CN102746129A (zh) * | 2012-07-23 | 2012-10-24 | 河北工业大学 | 一种杂多酸催化正丁醛自缩合制备2-乙基-2-己烯醛的工艺方法 |
CN102826977A (zh) * | 2012-09-25 | 2012-12-19 | 天宁香料(江苏)有限公司 | 一种7-甲氧基-3,7-二甲基辛醛合成方法及得到产品的应用 |
-
2017
- 2017-04-27 CN CN201710287133.5A patent/CN107032971B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1683298A (zh) * | 2005-03-07 | 2005-10-19 | 中国科学院广州化学研究所 | 4-(1,5-二甲基-1-乙烯基-4-己烯基)苯酚的合成新方法 |
CN101880221A (zh) * | 2010-06-22 | 2010-11-10 | 上海师范大学 | 一锅法制备辛烯醛的工艺 |
CN102093182A (zh) * | 2011-02-25 | 2011-06-15 | 江南大学 | 一种常温下空气氧化香茅醇高效制备香茅醛的方法 |
CN102746129A (zh) * | 2012-07-23 | 2012-10-24 | 河北工业大学 | 一种杂多酸催化正丁醛自缩合制备2-乙基-2-己烯醛的工艺方法 |
CN102826977A (zh) * | 2012-09-25 | 2012-12-19 | 天宁香料(江苏)有限公司 | 一种7-甲氧基-3,7-二甲基辛醛合成方法及得到产品的应用 |
Non-Patent Citations (3)
Title |
---|
Fluorescence emission and photooxidation studies with 5,6- and 6,7-benzocoumarins and a 5,6-benzochromone under direct and concentrated sun light;Canan Karapire等;《Journal of Photochemistry and Photobiology A: Chemistry》;20021101;第153卷(第1-3期);第173-184页 * |
In situ generation of water-stable and -soluble ruthenium complexes of pyridine-based chelate-ligands and their use for the hydrodeoxygenation of biomass-related substrates in aqueous acidic medium;Thomas A. Minard 等;《Journal of Molecular Catalysis A: Chemical》;20161031;第422卷;第175-187页 * |
Ruthenium-catalyzed transformation of 3-benzyl but-1-ynyl ethers into 1,3-dienes and benzaldehyde via transfer hydrogen;Kuo-Liang Yeh等;《journal of organic chemistry》;20040709;第69卷(第14期);第4692-4694页 * |
Also Published As
Publication number | Publication date |
---|---|
CN107032971A (zh) | 2017-08-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3045444B1 (en) | Method of preparing vanillin | |
CN111187148B (zh) | 一种同时制备邻羟基苯乙醚和1,3-苯并二氧戊环-2-酮的方法 | |
CN108047036A (zh) | 一种苯甲酸苄酯的合成方法 | |
KR101828002B1 (ko) | 1,3-사이클로헥산디메탄올의 제조 방법 | |
CN103159599A (zh) | 姜辣素衍生物的合成工艺 | |
EP1050523B1 (de) | Verfahren zur Addition von Hydroxylgruppen enthaltenden Verbindungen an Alkine und Allene unter Verwendung eines Hemimorphit-Katalysators | |
CN111908999B (zh) | 一种制备1,3-丁二醇的方法 | |
CN107032971B (zh) | 一种3,7-二甲基-6-羰基-2-辛烯醛的制备方法 | |
EP3015446B1 (en) | Method for producing allyl alcohol and allyl alcohol produced thereby | |
JP2020528446A (ja) | 新規なバニリン及び/又はエチルバニリン、それらの調製方法、並びにそれらの使用 | |
CN104650013B (zh) | 一种高选择性的(S)-β-羟基-γ-丁内酯简便制备方法 | |
CN108620095B (zh) | 一种复合催化剂及其在合成甘油醛中的应用 | |
CN108686682B (zh) | 一种绿色氧化合成甘油醛的方法 | |
RU2290994C1 (ru) | Катализатор, способ его приготовления и способ получения дигидроксиалканов | |
CN113004229B (zh) | 2-乙酰呋喃的制备方法 | |
CN104744406A (zh) | 利用重质松节油制备环氧石竹烯及分离长叶烯的方法 | |
CN108822012A (zh) | 一种3,7-二甲基-3-乙酰硫基-6-辛烯醇的制备方法 | |
CN110156652B (zh) | 一种硫代乙酸香叶醇酯的制备方法 | |
Liang et al. | Improvement of the polyoxometalate's performance in the asymmetric oxidation of styrene via combined with chiral ionic liquid | |
CN103387592B (zh) | 一种钌配合物的制备方法 | |
CN101966465A (zh) | 一种制备异胡薄荷醇的分子筛催化剂 | |
CN105801529B (zh) | 一种碳酸芳樟醇氧化物(吡喃型和呋喃型)酯乙酯的制备方法 | |
WO1998058894A1 (de) | Verfahren zur herstellung von enolethern | |
CN105037348B (zh) | 一种瑞他莫林合成方法 | |
CN108530398A (zh) | 一种3,7-二甲基-3-乙酰巯基-6,7-环氧-辛醛的制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200512 |
|
CF01 | Termination of patent right due to non-payment of annual fee |