CN114853699A - 一种苄呋醇的合成方法 - Google Patents
一种苄呋醇的合成方法 Download PDFInfo
- Publication number
- CN114853699A CN114853699A CN202210300717.2A CN202210300717A CN114853699A CN 114853699 A CN114853699 A CN 114853699A CN 202210300717 A CN202210300717 A CN 202210300717A CN 114853699 A CN114853699 A CN 114853699A
- Authority
- CN
- China
- Prior art keywords
- synthesizing
- product obtained
- reaction
- acid
- ether
- 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.)
- Pending
Links
- 238000010189 synthetic method Methods 0.000 title description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 26
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 12
- YHAROSAFXOQKCZ-UHFFFAOYSA-N 1-benzofuran-2-ol Chemical compound C1=CC=C2OC(O)=CC2=C1 YHAROSAFXOQKCZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- -1 benzofurol compound Chemical class 0.000 claims abstract description 9
- ROADCYAOHVSOLQ-UHFFFAOYSA-N 3-oxetanone Chemical class O=C1COC1 ROADCYAOHVSOLQ-UHFFFAOYSA-N 0.000 claims abstract description 8
- NHKJPPKXDNZFBJ-UHFFFAOYSA-N phenyllithium Chemical compound [Li]C1=CC=CC=C1 NHKJPPKXDNZFBJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 6
- ANRQGKOBLBYXFM-UHFFFAOYSA-M phenylmagnesium bromide Chemical compound Br[Mg]C1=CC=CC=C1 ANRQGKOBLBYXFM-UHFFFAOYSA-M 0.000 claims abstract description 6
- 239000005046 Chlorosilane Substances 0.000 claims abstract description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract description 5
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 claims abstract description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- PENBKXVBBPWGEI-UHFFFAOYSA-N 2-methylfuran-3-ol Chemical compound CC=1OC=CC=1O PENBKXVBBPWGEI-UHFFFAOYSA-N 0.000 claims abstract description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 3
- 238000007142 ring opening reaction Methods 0.000 claims abstract description 3
- 238000006467 substitution reaction Methods 0.000 claims abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000010511 deprotection reaction Methods 0.000 claims abstract 2
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 45
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 28
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- ZCSHNCUQKCANBX-UHFFFAOYSA-N lithium diisopropylamide Chemical compound [Li+].CC(C)[N-]C(C)C ZCSHNCUQKCANBX-UHFFFAOYSA-N 0.000 claims description 10
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 9
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 6
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 claims description 6
- 239000002841 Lewis acid Substances 0.000 claims description 5
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical compound BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 5
- 150000007517 lewis acids Chemical class 0.000 claims description 5
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 claims description 4
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 claims description 4
- FPGGTKZVZWFYPV-UHFFFAOYSA-M tetrabutylammonium fluoride Chemical compound [F-].CCCC[N+](CCCC)(CCCC)CCCC FPGGTKZVZWFYPV-UHFFFAOYSA-M 0.000 claims description 4
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical compound BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- BCNZYOJHNLTNEZ-UHFFFAOYSA-N tert-butyldimethylsilyl chloride Chemical compound CC(C)(C)[Si](C)(C)Cl BCNZYOJHNLTNEZ-UHFFFAOYSA-N 0.000 claims description 3
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 2
- 238000005893 bromination reaction Methods 0.000 claims description 2
- 150000005826 halohydrocarbons Chemical class 0.000 claims description 2
- 239000011698 potassium fluoride Substances 0.000 claims description 2
- 235000003270 potassium fluoride Nutrition 0.000 claims description 2
- 230000002194 synthesizing effect Effects 0.000 claims 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 claims 2
- DCFKHNIGBAHNSS-UHFFFAOYSA-N chloro(triethyl)silane Chemical compound CC[Si](Cl)(CC)CC DCFKHNIGBAHNSS-UHFFFAOYSA-N 0.000 claims 2
- KQIADDMXRMTWHZ-UHFFFAOYSA-N chloro-tri(propan-2-yl)silane Chemical compound CC(C)[Si](Cl)(C(C)C)C(C)C KQIADDMXRMTWHZ-UHFFFAOYSA-N 0.000 claims 2
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 claims 2
- 150000008282 halocarbons Chemical class 0.000 claims 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims 2
- HZXJVDYQRYYYOR-UHFFFAOYSA-K scandium(iii) trifluoromethanesulfonate Chemical compound [Sc+3].[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F HZXJVDYQRYYYOR-UHFFFAOYSA-K 0.000 claims 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims 2
- 229910015900 BF3 Inorganic materials 0.000 claims 1
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 239000011831 acidic ionic liquid Substances 0.000 claims 1
- 230000002378 acidificating effect Effects 0.000 claims 1
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims 1
- 239000002585 base Substances 0.000 claims 1
- 229960001701 chloroform Drugs 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 150000007529 inorganic bases Chemical class 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 229910052755 nonmetal Inorganic materials 0.000 claims 1
- 150000007530 organic bases Chemical class 0.000 claims 1
- 229910000027 potassium carbonate Inorganic materials 0.000 claims 1
- 239000005051 trimethylchlorosilane Substances 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 239000000575 pesticide Substances 0.000 abstract description 3
- 238000001308 synthesis method Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- VEZXCJBBBCKRPI-UHFFFAOYSA-N beta-propiolactone Chemical compound O=C1CCO1 VEZXCJBBBCKRPI-UHFFFAOYSA-N 0.000 abstract 1
- 230000000749 insecticidal effect Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 42
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 18
- 239000003960 organic solvent Substances 0.000 description 13
- 238000004821 distillation Methods 0.000 description 12
- 239000012074 organic phase Substances 0.000 description 12
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 238000010791 quenching Methods 0.000 description 6
- VEMKTZHHVJILDY-FIWHBWSRSA-N resmethrin Chemical compound CC1(C)[C@H](C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-FIWHBWSRSA-N 0.000 description 6
- 229940108410 resmethrin Drugs 0.000 description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 5
- 235000013339 cereals Nutrition 0.000 description 4
- KZMGYPLQYOPHEL-UHFFFAOYSA-N Boron trifluoride etherate Chemical compound FB(F)F.CCOCC KZMGYPLQYOPHEL-UHFFFAOYSA-N 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- STJIISDMSMJQQK-UHFFFAOYSA-N furan-3-ylmethanol Chemical compound OCC=1C=COC=1 STJIISDMSMJQQK-UHFFFAOYSA-N 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- TWNMOFPCODKHLV-UHFFFAOYSA-N 1-benzofuran methanol Chemical compound CO.O1C=CC2=C1C=CC=C2 TWNMOFPCODKHLV-UHFFFAOYSA-N 0.000 description 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 1
- 229940073608 benzyl chloride Drugs 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000022244 formylation Effects 0.000 description 1
- 238000006170 formylation reaction Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- 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
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members 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
- C07D307/58—One oxygen atom, e.g. butenolide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明涉及一种杀虫农药中间体的合成技术,特别设计一种苄呋醇化合物的合成方法。其特征在于,包括如下步骤:(1)在‑50~‑70℃下,将丙酮去质子化后与氧杂环丁酮反应,得到3‑氧杂环丁醇衍生物;(2)步骤(1)所得产物在酸的作用下,发生开环反应得到2‑甲基‑3‑呋喃醇;(3)用氯硅烷对步骤(2)中所得产物中的羟基进行保护;(4)将步骤(3)所得产物中的甲基进行溴化;(5)将步骤(4)所得产物与苯基锂或苯基溴化镁发生取代反应,得到苄呋硅醚化合物;(6)用氟化物对步骤(5)中所得苄呋硅醚进行硅基脱保护,得到苄呋醇化合物。本发明中苄呋醇的合成方法,操作方便,原料简单易得,整体收率比现有技术有明显的提升。
Description
技术领域
本发明属于有机合成领域,特别涉及一种农药中间体的合成技术。
背景技术
苄呋菊酯(Resmethrin)是一种良好的家庭卫生用杀虫剂,而且由于其毒性极低,在储粮方面也具有广泛的用途。早在1975年联合国粮农组织与世界卫生组织批准该药可直接用于原粮和成品粮(如大米、面粉等),防治粮食害虫。而苄呋醇作为苄呋菊酯中的核心结构单元,实现其高效合成具有重要的经济社会价值。综合国内外文献报道,苄呋醇的合成主要由先对3-呋喃甲醇进行羟基保护;羟基保护好后再用N,N-二甲基甲酰胺/三氯氧膦做成2-甲酰-3-呋喃甲醇;随后经苄氯保护、苯基锂取代、氢化等六步反应合成得到。其中第二步甲酰化的收率低,选择性低,总体收率不理想。本发明所使用的原料易得、反应操作均比较简单。
发明内容
本发明针对现有技术中存在的不足,提供苄呋菊酯中间体的合成方法,以合成高收率的苄呋醇。
本发明中苄呋醇的合成方法,其特征在于,包括如下步骤:
(1)在-50~-70℃下,在丙酮的乙醚、甲基叔丁基醚或四氢呋喃溶液中,加入二异丙基氨基锂对丙酮进行去质子化,再加入3-氧杂环丁酮反应,得到3-氧杂环丁醇衍生物;
(2)步骤(1)所得产物在质子酸或路易斯酸的常温作用下,在常用有机溶剂中发生开环反应,得到2-甲基-3-呋喃醇。
(3)步骤(2)中所得产物以二氯甲烷为溶剂,在碱的参与下,对其羟基进行氯硅烷保护;
(4)将步骤(3)所得产物在溴代丁二酰亚胺或液溴中,以卤代烃或乙腈为溶剂进行甲基溴化反应,形成溴化物;
(5)0℃下,将步骤(4)所得产物的有机醚类溶剂中,加入苯基锂或苯基溴化镁,加完后常温反应,得到苄呋硅醚化合物;
(6)常温条件下,在四氢呋喃和水的混合物中,用氟化物对步骤(5)中所得苄呋硅醚进行脱硅基保护,得到苄呋醇化合物。
具体实施方式
下述实施例中所使用的实验方法如无特殊说明,均为常规方法。
下述实施例中所使用的材料、试剂等,如无特殊说明,均可从商业途径获得。
下面的实施例对本发明做进一步说明,其目的是能够更好理解本发明的内容。但是实施例不以任何方式限制本发明的范围。本专业领域的技术人员在本发明权利要求范围内做出的改进和调整也应属于本发明的权利和保护范围。
实施例1
(1)-60℃下,在250mL的三口烧瓶中加入100mL四氢呋喃和二异丙基氨基锂溶液55mL(2.0mol/L的四氢呋喃溶液)。往该溶液中缓慢加入丙酮5.8g,反应一小时后,继续降温至-60℃,随后加入3-氧杂环丁酮7.2g。加完后室温搅拌6小时。反应结束后,用氯化铵溶液淬灭反应,水层用200mL乙酸乙酯萃取两次,合并有机相,减压蒸馏去除有机溶剂,收到产物11.2g,含量97.3%,收率86%。
(2)将步骤(1)反应完毕所得的产物和100mL二氯甲烷装入250mL三口烧瓶中。室温下,加入三氟乙酸2g,搅拌反应10小时。反应结束后,加入饱和碳酸氢钠溶液中和三氟乙酸,水相用200mL二氯甲烷萃取两次,合并有机相,减压蒸馏去除有机溶剂,收到产物9.1g,含量98%,收率94%。
(3)将步骤(2)反应完毕所得的产物、5.5g咪唑、100mL二氯甲烷装入250mL三口烧瓶中。0℃下,加入叔丁基二甲基氯硅烷13.2g,搅拌反应2小时。反应结束后,加入饱和碳酸氢钠溶液中和淬灭反应,水相用200mL二氯甲烷取两次,合并有机相,减压蒸馏去除有机溶剂,收到产物18g,含量97%,收率98%。
(4)将步骤(3)反应完毕所得的产物和100mL二氯甲烷装入250mL三口烧瓶中。0℃下,缓慢加入13g液溴,搅拌反应5小时。反应结束后,加入饱和碳酸氢钠溶液中和淬灭反应,水相用200mL二氯甲烷萃取两次,合并有机相,减压蒸馏去除有机溶剂,收到产物22g,含量96.4%,收率91%。
(5)将步骤(4)反应完毕所得的产物和100mL四氢呋喃装入250mL三口烧瓶中。0℃下,缓慢加入苯基溴化镁29mL(3.0mol/L的四氢呋喃溶液),搅拌反应12小时。反应结束后,加入饱和氯化铵溶液中和淬灭反应,水相用200mL乙酸乙酯萃取两次,合并有机相,减压蒸馏去除有机溶剂,收到产物17.8g,含量94%,收率82%。
(6)将步骤(5)反应完毕所得的产物、50mL四氢呋喃、50mL水装入250mL三口烧瓶中。室温下,加入四丁基氟化铵60mL(1.0mol/L的四氢呋喃溶液),搅拌反应12小时。反应结束后用200mL乙酸乙酯萃取两次,合并有机相,减压蒸馏去除有机溶剂,收到产物10.1g,含量96.1%,收率97%。
实施例2
(1)-60℃下,在250mL的三口烧瓶中加入100mL乙醚和二异丙基氨基锂溶液55mL(2.0mol/L的四氢呋喃溶液)。往该溶液中缓慢加入丙酮5.8g,反应一小时后,继续降温至-60℃,随后加入3-氧杂环丁酮7.2g。加完后,室温搅拌5小时。反应结束后,用氯化铵溶液淬灭反应,水层用200mL乙酸乙酯萃取两次,合并有机相,减压蒸馏去除有机溶剂,收到产物11.5g,含量97.6%,收率88%。
(2)将步骤(1)反应完毕所得的产物和100mL二氯甲烷装入250mL三口烧瓶中。室温下,加入三氟化硼乙醚1.5g,搅拌反应6小时。反应结束后,往反应体系中加入100mL水后进行分液,水相用200mL二氯甲烷萃取两次,合并有机相,减压蒸馏去除有机溶剂,收到产物9.3g,含量97.7%,收率95%。
(3)将步骤(2)反应完毕所得的产物、5.5g咪唑、100mL二氯甲烷装入250mL三口烧瓶中。0℃下,加入叔丁基二甲基氯硅烷13.2g,搅拌反应2小时。反应结束后,加入饱和碳酸氢钠溶液中和淬灭反应,水相用200mL二氯甲烷取两次,合并有机相,减压蒸馏去除有机溶剂,收到产物18.2g,含量97%,收率96%。
(4)将步骤(3)反应完毕所得的产物和100mL二氯甲烷装入250mL三口烧瓶中。0℃下,缓慢加入13.5g液溴,搅拌反应5小时。反应结束后,加入饱和碳酸氢钠溶液中和淬灭反应,水相用200mL二氯甲烷萃取两次,合并有机相,减压蒸馏去除有机溶剂,收到产物22.6g,含量96.1%,收率92%。
(5)将步骤(4)反应完毕所得的产物和100mL四氢呋喃装入250mL三口烧瓶中。0℃下,缓慢加入苯基锂80mL(1.0mol/L的四氢呋喃溶液),搅拌反应10小时。反应结束后,加入饱和氯化铵溶液中和淬灭反应,水相用200mL乙酸乙酯萃取两次,合并有机相,减压蒸馏去除有机溶剂,收到产物19.2g,含量95%,收率87%。
(6)将步骤(5)反应完毕所得的产物、50mL四氢呋喃、50mL水装入250mL三口烧瓶中。室温下,加入3.8g氟化钾,搅拌反应10小时。反应结束后用200mL乙酸乙酯萃取两次,合并有机相,减压蒸馏去除有机溶剂,收到产物11.3g,含量96.3%,收率95%。
Claims (10)
1.一种苄呋醇的合成方法,其特征在于,包括如下步骤:
(1)在-50~-70℃下,在有机醚类溶剂中,将丙酮经二异丙基氨基锂去质子化后与3-氧杂环丁酮反应,得到3-氧杂环丁醇衍生物;
(2)步骤(1)所得产物在质子酸或路易斯酸的作用下,在有机醚或卤代烃溶剂中发生开环反应,得到2-甲基-3-呋喃醇;
(3)步骤(2)中所得产物以二氯甲烷为溶剂,在碱的参与下,对其羟基用氯硅烷进行保护;
(4)将步骤(3)所得产物在溴代丁二酰亚胺或液溴中,以卤代烃或乙腈为溶剂进行甲基溴化反应,形成溴化物;
(5)将步骤(4)所得产物在有机醚类溶剂中,与苯基锂或苯基溴化镁发生取代反应,得到苄呋硅醚化合物;
(6)在四氢呋喃和水的混合物中,用氟化物对步骤(5)中所得苄呋硅醚进行硅基脱保护,得到苄呋醇化合物。
2.根据权利要求1所述的苄呋醇的合成方法,其特征在于,步骤(1)、(2)和(5)中所述的有机醚类溶剂为乙醚、甲基叔丁基醚或四氢呋喃中的一种;步骤(2)和(4)中的卤代烃为二氯甲烷、三氯甲烷、四氯化碳中的一种。
3.根据权利要求1所述的苄呋醇的合成方法,其特征在于,步骤(1)中所述的3-氧杂环丁酮、丙酮、二异丙基氨基锂三者的摩尔比为1:(1.0-1.3):(1.1-1.5)。
4.根据权利要求1所述的苄呋醇的合成方法,其特征在于,步骤(2)中所述的质子酸为盐酸、硫酸、三氟乙酸、酸性离子液体等可电离酸性氢的质子酸,路易斯酸可为三氟甲磺酸钪、三氯化铝等金属路易斯酸或三氟化硼等非金属路易斯酸中的一种,且酸的用量为3-50mol%。
5.根据权利要求1所述的苄呋醇的合成方法,其特征在于,步骤(3)中所述的碱可以为咪唑、三乙胺等有机碱或碳酸钾、氢氧化钠等无机碱中的一种。
6.根据权利要求1所述的苄呋醇的合成方法,其特征在于,步骤(3)中所述的氯硅烷可以三甲基氯硅烷、三乙基氯硅烷、三异丙基氯硅烷、叔丁基二甲基氯硅烷等氯硅烷系列化合物中的一种。
7.根据权利要求1所述的苄呋醇的合成方法,其特征在于,步骤(3)中所述的碱、氯硅烷摩尔用量分别为步骤(2)所得化合物的1.05-1.2、1.1-1.3倍。
8.根据权利要求1所述的苄呋醇的合成方法,其特征在于,步骤(4)中所述的溴代丁二酰亚胺或液溴摩尔用量为步骤(3)所得产物的1.05-1.3倍。
9.根据权利要求1所述的苄呋醇的合成方法,其特征在于,步骤(5)中所述的苯基锂或苯基溴化镁的摩尔用量为步骤(4)所得产物的1.1-1.3倍。
10.根据权利要求1所述的苄呋醇的合成方法,其特征在于,步骤(6)中所述的氟化物为氟化钾、四丁基氟化铵等含氟化合物中的一种,其用量为步骤(5)产物的1.0-1.5倍。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210300717.2A CN114853699A (zh) | 2022-03-25 | 2022-03-25 | 一种苄呋醇的合成方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210300717.2A CN114853699A (zh) | 2022-03-25 | 2022-03-25 | 一种苄呋醇的合成方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114853699A true CN114853699A (zh) | 2022-08-05 |
Family
ID=82628589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210300717.2A Pending CN114853699A (zh) | 2022-03-25 | 2022-03-25 | 一种苄呋醇的合成方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114853699A (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1507439A (zh) * | 2001-05-04 | 2004-06-23 | 生产5-苄基-3-糠醇的方法 | |
CN103880791A (zh) * | 2014-03-26 | 2014-06-25 | 中国科学技术大学 | 一种2-苄基呋喃-4-甲醇的合成方法 |
CN109721546A (zh) * | 2018-12-29 | 2019-05-07 | 青岛清原化合物有限公司 | 取代的嘧啶芳酯衍生物及其制备方法、除草组合物和应用 |
CN111559993A (zh) * | 2020-06-01 | 2020-08-21 | 盐城师范学院 | 一种呋喃甲醇类化合物的制备方法 |
-
2022
- 2022-03-25 CN CN202210300717.2A patent/CN114853699A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1507439A (zh) * | 2001-05-04 | 2004-06-23 | 生产5-苄基-3-糠醇的方法 | |
CN103880791A (zh) * | 2014-03-26 | 2014-06-25 | 中国科学技术大学 | 一种2-苄基呋喃-4-甲醇的合成方法 |
CN109721546A (zh) * | 2018-12-29 | 2019-05-07 | 青岛清原化合物有限公司 | 取代的嘧啶芳酯衍生物及其制备方法、除草组合物和应用 |
CN111559993A (zh) * | 2020-06-01 | 2020-08-21 | 盐城师范学院 | 一种呋喃甲醇类化合物的制备方法 |
Non-Patent Citations (4)
Title |
---|
CHUNJIE NI等: "Brønsted Acid Ionic Liquid-Catalyzed Ring Opening of 3,3- Disubstituted Oxetanes in Water: Efficient Access to Furans and Benzofurans", ACS SUSTAINABLE CHEM. ENG. * |
DMITRY S. RYABUKHIN等: "Superelectrophilic activation of 5-hydroxymethylfurfural and 2,5-diformylfuran: organic synthesis based on biomass-derived products", J. ORG. CHEM. * |
MASATO OHSUMI等: "Substrate switchable Suzuki–Miyaura coupling for benzyl ester vs. benzyl halide", RSC ADV. * |
ZOLTÁN DOBI等: "Strain-Driven Direct Cross-Aldol and -Ketol Reactions of Four- Membered Heterocyclic Ketones", ORG. LETT. * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2775962C (en) | Processes for preparing of glucopyranosyl-substituted benzyl-benzene derivatives | |
Jin et al. | Trifluoroacetyltriphenylsilane as a potentially useful fluorine-containing building block. Preparation and its transformation into 2, 2-difluoro enol silyl ethers | |
Suzuki et al. | Synthesis, structure and properties of 3, 9, 15-tri-and 3, 6, 9, 12, 15, 18-hexasubstituted dodecadehydro [18] annulenes (C18H3R3 and C18R6) with D6h-symmetry | |
CN103787854A (zh) | 一种全氟-2-甲基-3-戊酮的制备工艺 | |
JP5596258B2 (ja) | カリックスアレーンダイマー化合物およびその製造方法 | |
KR102127112B1 (ko) | 초가교 바이페닐 중합체를 이용한 고리형 카보네이트의 제조방법 및 초가교 바이페닐 중합체 | |
CN114853699A (zh) | 一种苄呋醇的合成方法 | |
SU900806A3 (ru) | Способ получени производных простагландина | |
EP0113107B1 (en) | Process for preparing alcohols | |
CN106749335B (zh) | 一种卤代氧头孢类中间体的制备方法和应用 | |
EP3309142B1 (en) | Method for preparing citalopram diol intermediate | |
US7049455B2 (en) | Process for producing shogaols and intermediates for the synthesis thereof | |
Alvarez et al. | Model studies directed towards microalga polyether toxins. A stereoselective entry into C8 oxepane subunits | |
CN107285998A (zh) | 一种1‑(4‑氯苯基)‑2‑环丙基‑1‑丙酮的制备方法 | |
US6720463B1 (en) | Process for the production of alkanediol derivative | |
CN114805010B (zh) | 一种4-卤代-1,1,2-三氟-1-丁烯的制备方法 | |
CN114539041B (zh) | 一种氯氟醚菌唑中间体的制备方法 | |
CN117229227A (zh) | 一种3-氨基-6-双乙氧羰基甲基-1,2,4,5-四嗪及其合成方法 | |
CN104003850B (zh) | 一种2-氯乙氧基-2-乙氧基二乙醇的制备方法 | |
JPS5914473B2 (ja) | 1,1,3,3−テトラフルオロ−1,3−ジヒドロ−イソベンゾフランの製造方法 | |
NO146911B (no) | Fremgangsmaate ved fremstilling av n-(2`-furanidyl)-5-fluor-uracil | |
EP0936207B1 (en) | Process for the preparation of cyclopropylacetylene derivatives | |
KR100545716B1 (ko) | 2,2,2-트리플루오로에탄올의 제조방법 | |
Gruttadauria et al. | Regioselective epoxide ring opening. Steroselective synthesis of a tetrahydropyran ring | |
SU777033A1 (ru) | Способ получени 2-( -хлорэтил)1,3-диоксолана |
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 | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220805 |