CN110862297A - 一种6碳骨架结构的手性醇类化合物的合成方法 - Google Patents
一种6碳骨架结构的手性醇类化合物的合成方法 Download PDFInfo
- Publication number
- CN110862297A CN110862297A CN201911217961.7A CN201911217961A CN110862297A CN 110862297 A CN110862297 A CN 110862297A CN 201911217961 A CN201911217961 A CN 201911217961A CN 110862297 A CN110862297 A CN 110862297A
- Authority
- CN
- China
- Prior art keywords
- reaction
- pinene
- chiral
- borane
- chiral alcohol
- 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
- -1 alcohol compound Chemical class 0.000 title claims description 9
- 238000001308 synthesis method Methods 0.000 title abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 150000001298 alcohols Chemical class 0.000 claims abstract description 7
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 claims abstract description 6
- 238000010791 quenching Methods 0.000 claims abstract description 6
- 239000002243 precursor Substances 0.000 claims abstract description 5
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 4
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 4
- 230000000171 quenching effect Effects 0.000 claims abstract description 3
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 claims description 21
- WYURNTSHIVDZCO-UHFFFAOYSA-N tetrahydrofuran Substances C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 20
- 229910000085 borane Inorganic materials 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- GRWFGVWFFZKLTI-UHFFFAOYSA-N α-pinene Chemical compound CC1=CCC2C(C)(C)C1C2 GRWFGVWFFZKLTI-UHFFFAOYSA-N 0.000 claims description 8
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 claims description 7
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000012074 organic phase Substances 0.000 claims description 6
- KZMGYPLQYOPHEL-UHFFFAOYSA-N Boron trifluoride etherate Chemical compound FB(F)F.CCOCC KZMGYPLQYOPHEL-UHFFFAOYSA-N 0.000 claims description 5
- 229930006720 (-)-alpha-pinene Natural products 0.000 claims description 4
- GRWFGVWFFZKLTI-IUCAKERBSA-N (-)-α-pinene Chemical compound CC1=CC[C@@H]2C(C)(C)[C@H]1C2 GRWFGVWFFZKLTI-IUCAKERBSA-N 0.000 claims description 4
- WTARULDDTDQWMU-UHFFFAOYSA-N Pseudopinene Natural products C1C2C(C)(C)C1CCC2=C WTARULDDTDQWMU-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- IAQXEQYLQNNXJC-UHFFFAOYSA-N methoxy-bis(4,6,6-trimethyl-3-bicyclo[3.1.1]heptanyl)borane Chemical compound C1C(C2(C)C)CC2C(C)C1B(OC)C(C1C)CC2C(C)(C)C1C2 IAQXEQYLQNNXJC-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000005885 boration reaction Methods 0.000 claims description 3
- IAQRGUVFOMOMEM-ARJAWSKDSA-N cis-but-2-ene Chemical compound C\C=C/C IAQRGUVFOMOMEM-ARJAWSKDSA-N 0.000 claims description 3
- DLEDOFVPSDKWEF-UHFFFAOYSA-N lithium butane Chemical compound [Li+].CCC[CH2-] DLEDOFVPSDKWEF-UHFFFAOYSA-N 0.000 claims description 3
- MZRVEZGGRBJDDB-UHFFFAOYSA-N n-Butyllithium Substances [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 3
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 claims description 3
- 239000012071 phase Substances 0.000 claims description 3
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 claims description 3
- 238000000967 suction filtration Methods 0.000 claims description 3
- 230000002194 synthesizing effect Effects 0.000 claims description 3
- COIPQIFWUIDWLU-WDSKDSINSA-N (2s,3s)-3-methylpent-4-en-2-ol Chemical compound C[C@H](O)[C@@H](C)C=C COIPQIFWUIDWLU-WDSKDSINSA-N 0.000 claims description 2
- 238000007865 diluting Methods 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 238000010189 synthetic method Methods 0.000 claims description 2
- 230000007062 hydrolysis Effects 0.000 claims 1
- 238000006460 hydrolysis reaction Methods 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 9
- 238000004128 high performance liquid chromatography Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 2
- 229940126214 compound 3 Drugs 0.000 abstract description 2
- 239000012467 final product Substances 0.000 abstract description 2
- 230000003301 hydrolyzing effect Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000007787 solid Substances 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000012043 crude product Substances 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- OKKJLVBELUTLKV-MZCSYVLQSA-N Deuterated methanol Chemical compound [2H]OC([2H])([2H])[2H] OKKJLVBELUTLKV-MZCSYVLQSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- 229940125904 compound 1 Drugs 0.000 description 2
- 229940125782 compound 2 Drugs 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- SKBXVAOMEVOTGJ-UHFFFAOYSA-N xi-Pinol Chemical compound CC1=CCC2C(C)(C)OC1C2 SKBXVAOMEVOTGJ-UHFFFAOYSA-N 0.000 description 2
- 229920002160 Celluloid Polymers 0.000 description 1
- 229910010082 LiAlH Inorganic materials 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- GCFHZZWXZLABBL-UHFFFAOYSA-N ethanol;hexane Chemical compound CCO.CCCCCC GCFHZZWXZLABBL-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/09—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
- C07C7/14875—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with organic compounds
-
- 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 Table
- C07F5/02—Boron compounds
- C07F5/025—Boronic and borinic acid compounds
-
- 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 Table
- C07F5/02—Boron compounds
- C07F5/027—Organoboranes and organoborohydrides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/07—Optical isomers
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/36—Systems containing two condensed rings the rings having more than two atoms in common
- C07C2602/42—Systems containing two condensed rings the rings having more than two atoms in common the bicyclo ring system containing seven carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明公开了一种6碳骨架结构的手性醇类化合物的合成方法,本发明以(‑)‑a‑蒎烯为手性助剂,采用连续硼烷化反应、氧化反应构建手性前体化合物3,随后与顺二丁烯、乙醛进行拼合反应,最后淬灭水解得手性醇纯品,终产物HPLC纯度97.4%,e.e值98.1%;不仅可以获得高手性纯度和含量的目标产品,而且能够进行商业化生产,操作简便,具有较理想的收率。
Description
技术领域
本发明涉及一种6碳骨架结构的手性醇类化合物的合成方法。
背景技术
目前暂未有该手性醇类化合物的高效选择性合成工艺,或产品手性纯度较低,不适宜商业化生产。
发明内容
本发明要解决的技术问题是克服现有技术中手性醇类化合物的收率较低的缺陷,提供一种6碳骨架结构的手性醇类化合物的合成方法。
为了解决上述技术问题,本发明提供了如下的技术方案:
一种6碳骨架结构的手性醇类化合物的合成方法,以(-)-a-蒎烯为手性助剂,采用连续硼烷化反应、氧化反应构建手性前体化合物,随后与顺二丁烯、乙醛进行拼合反应,最后淬灭水解得手性醇类化合物。
具体的,一种6碳骨架结构的手性醇类化合物的合成方法,包括以下步骤:
S1、(-)-a-蒎烯纯品在N2保护下与BH3.Me2S和THF反应生成(+)-二异松蒎烯基硼烷;
S2、(+)-二异松蒎烯基硼烷在N2保护下与无水乙醚、无水甲醇在0℃下反应生成(+)-二异松蒎烯基甲氧基硼烷;
S3、在N2保护下将t-BuOK冷却至在-78℃,加入无水THF搅拌后,依次加入顺-2-丁烯、n-BuLi后升温至-40℃,然后重新降至-78℃,然后以无水乙醚(0.5L)稀释(+)-二异松蒎烯基甲氧基硼烷加入上述体系中生成(+)-二异松蒎烯顺-2-丁烯基硼烷;
S4、向(+)-二异松蒎烯顺-2-丁烯基硼烷中缓慢滴加BF3.Et2O,然后加入乙醛,搅拌后分别加入NaOH溶液和双氧水淬灭反应,反应后将体系冷却至室温,分离有机相,水相用甲基叔丁基醚(3L)萃取,合并有机相、干燥,抽滤,减压浓缩,蒸馏得到(2S,3S)-3-甲基戊-4-烯-2-醇。
其中,所述(-)-a-蒎烯纯品的纯化方法如下:
S1、(-)-a-蒎烯粗品在N2保护下与BH3.Me2S和THF反应生成(+)-二异松蒎烯基硼烷;
S2、(+)-二异松蒎烯基硼烷与苯甲醛、BF3.Et2O反应生成(1S)-(-)-a蒎烯;
S3、(1S)-(-)-a蒎烯在N2保护下与THF、BH3.Me2S反应生成(-)-a-蒎烯纯品。
本发明所达到的有益效果是:本发明的6碳骨架结构的手性醇类化合物的合成方法以(-)-a-蒎烯为手性助剂,采用连续硼烷化反应、氧化反应构建手性前体化合物3,随后与顺二丁烯、乙醛进行拼合反应,最后淬灭水解得手性醇纯品,终产物HPLC纯度97.4%,e.e值98.1%;不仅可以获得高手性纯度和含量的目标产品,而且能够进行商业化生产,操作简便,具有较理想的收率。
附图说明
附图用来提供对本发明的进一步理解,并且构成说明书的一部分,与本发明的实施例一起用于解释本发明,并不构成对本发明的限制。在附图中:
图1是本发明的技术路线图;
图2是本发明的目标产物的GC纯度分析;
图3是本发明目标产物的HPLC光学纯度分析。
具体实施方式
以下结合附图对本发明的优选实施例进行说明,应当理解,此处所描述的优选实施例仅用于说明和解释本发明,并不用于限定本发明。
实施例1
化合物1-粗品的制备
称取化合物(-)-a-蒎烯粗品(1500g,11.0mol,2.4equiv.)于一干燥的5L三颈圆底烧瓶中,N2保护后,搅拌并加入无水THF(1L),然后0℃下缓慢加入BH3.Me2S(10M,458mL,4.58mol,1.0equiv.),加毕,将反应温度升至20℃,停止搅拌,保持20℃静置10h后再保持0℃静置2h,期间瓶底析出白色固体。然后将上清液转移至瓶外,所得固体使用无水正己烷(200mL*3)洗涤,真空干燥所得固体后称量质量为520g,计算反应收率为40%。
实施例2化合物SM纯品的制备
将上述所得白色固体(520g,1.82mol,1.0equiv.)N2保护后冷却至0℃,然后缓慢加入Benzaldhyde(578g,5.45mol,3.0equiv.),加毕,反应变为澄清。然后加入BF3.Et2O(15.7mL,182mmol,0.1equiv.)并加热至100℃,保持温度搅拌1h。冷却后减压蒸馏得化合物SM(含少量苯甲醛),然后往所得化合物SM中加入少量LiAlH4,加热至70℃搅拌1h,然后减压蒸馏得纯品化合物SM,称量质量为470g,计算反应收率为95%,光学纯度e.e值≥98.0%。(备注:可多批次合并蒸馏)
实施例3化合物1的制备
称取化合物SM纯品(4700g,34.5mol,2.4equiv.)于一干燥的10L三颈圆底烧瓶中,N2保护后,搅拌并加入无水THF(1.5L),然后0℃下缓慢加入BH3.Me2S(10M,1440mL,14.4mol,1.0equiv.),加毕,将反应温度升至20℃,停止搅拌,保持20℃静置14h后再保持0℃静置2h,期间瓶底析出大量白色固体。然后将上清液转移至瓶外,所得固体使用无水正己烷(500mL*3)洗涤,真空干燥所得固体后称量质量为2500g,计算反应收率为61%。
实施例4化合物2的制备
将上述所得白色纯品化合物1(2500g,8.73mol,1.0equiv.)氮气保护后,加入无水乙醚(2.5L),冷却至0℃。再缓慢滴加无水甲醇(425mL,10.5mol,1.2equiv.),期间产生大量气体。加毕,保持0℃搅拌4h,体系逐渐变澄清。然后减压浓缩得无色油状液体,之后真空干燥3h。称量所得无色油状液体质量为2200g,计算收率为79%。氮气保护后密封低温保存。
实施例5目标化合物4的制备
称取t-BuOK(945g,8.34mol,1.2equiv.)于干燥的10L三颈圆底烧瓶中,氮气保护后将体系冷却至-78℃,然后加入无水THF(0.5L),搅拌10min。然后称取顺-2-丁烯(780g,13.9mol,2.2equiv.)移至上述体系中。之后缓慢加入n-BuLi(3.06L,7.65mol,1.1equiv.),加毕,将反应温度升高至-40℃,然后将温度重新降至-78℃,将化合物2(2200g,6.95mol,1.0equiv.)以无水乙醚(0.5L)稀释后缓慢转移至上述体系中。加毕,保持温度搅拌30min。然后缓慢滴加BF3.Et2O(945mL,7.65mol,1.1equiv.),之后再将乙醛(782mL,14.0mol,2.0equiv.)以无水乙醚(100mL)稀释后缓慢滴加至上述体系中,加毕,保持温度搅拌3h。之后再分别加入10M NaOH溶液(1.14L)和双氧水(1.58L,1h内缓慢加入)淬灭反应,保持温度搅拌10min后,将反应温度加热至30℃,保持温度搅拌1h。之后再将体系冷却至室温,分离有机相并,水相用甲基叔丁基醚(3L)萃取,合并有机相并用无水硫酸镁干燥。抽滤,减压浓缩除去大部分溶剂,所得剩余物使用水泵小心减压蒸馏得无色油状液体粗产物约350g(含蒎醇、叔丁醇和四氢呋喃等杂质),两批次合并后进行精馏。
将两批次所得粗产物合并后(约700g)使用水泵进行减压精馏,收集目标馏分,称量最终所得无色油状液体产物化合物4,质量为460g,三步总收率为33%。1H-NMR400 MHz,CD3OD):1.01(d,3H),1.02(d,3H),1.64(m,1H),2.22(m,1H),3.67(m,1H),5.07(m,2H),5.76(m,1H).
目标物的GC纯度分析
分析方法:Agilent DB-624毛细管柱,进样口温度250℃,检测器温度280℃,载气为氮气,流速1.5ml/min,色谱图谱如图2所示:
目标物的HPLC光学纯度分析
分析方法:大赛璐AD-H色谱柱,流动相为正己烷-乙醇(1:1),安捷伦VWD检测器,检测波长220nm,色谱图谱如下图3所示。
最后应说明的是:以上所述仅为本发明的优选实施例而已,并不用于限制本发明,尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (3)
1.一种6碳骨架结构的手性醇类化合物的合成方法,其特征在于,以(-)-a-蒎烯为手性助剂,采用连续硼烷化反应、氧化反应构建手性前体化合物,随后与顺二丁烯、乙醛进行拼合反应,最后淬灭水解得手性醇类化合物。
2.如权利要求1所述的6碳骨架结构的手性醇类化合物的合成方法,其特征在于,包括以下步骤:
S1、(-)-a-蒎烯纯品在N2保护下与BH3.Me2S和THF反应生成(+)-二异松蒎烯基硼烷;
S2、(+)-二异松蒎烯基硼烷在N2保护下与无水乙醚、无水甲醇在0℃下反应生成(+)-二异松蒎烯基甲氧基硼烷;
S3、在N2保护下将t-BuOK冷却至在-78℃,加入无水THF搅拌后,依次加入顺-2-丁烯、n-BuLi后升温至-40℃,然后重新降至-78℃,然后以无水乙醚(0.5L)稀释(+)-二异松蒎烯基甲氧基硼烷加入上述体系中生成(+)-二异松蒎烯顺-2-丁烯基硼烷;
S4、向(+)-二异松蒎烯顺-2-丁烯基硼烷中缓慢滴加BF3.Et2O,然后加入乙醛,搅拌后分别加入NaOH溶液和双氧水淬灭反应,反应后将体系冷却至室温,分离有机相,水相用甲基叔丁基醚(3L)萃取,合并有机相、干燥,抽滤,减压浓缩,蒸馏得到(2S,3S)-3-甲基戊-4-烯-2-醇。
3.如权利要求1所述的6碳骨架结构的手性醇类化合物的合成方法,其特征在于,所述(-)-a-蒎烯纯品的纯化方法如下:
S1、(-)-a-蒎烯粗品在N2保护下与BH3.Me2S和THF反应生成(+)-二异松蒎烯基硼烷;
S2、(+)-二异松蒎烯基硼烷与苯甲醛、BF3.Et2O反应生成(1S)-(-)-a蒎烯;
S3、(1S)-(-)-a蒎烯在N2保护下与THF、BH3.Me2S反应生成(-)-a-蒎烯纯品。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911217961.7A CN110862297A (zh) | 2019-12-03 | 2019-12-03 | 一种6碳骨架结构的手性醇类化合物的合成方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911217961.7A CN110862297A (zh) | 2019-12-03 | 2019-12-03 | 一种6碳骨架结构的手性醇类化合物的合成方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110862297A true CN110862297A (zh) | 2020-03-06 |
Family
ID=69657363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201911217961.7A Pending CN110862297A (zh) | 2019-12-03 | 2019-12-03 | 一种6碳骨架结构的手性醇类化合物的合成方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110862297A (zh) |
-
2019
- 2019-12-03 CN CN201911217961.7A patent/CN110862297A/zh active Pending
Non-Patent Citations (1)
Title |
---|
HERBERT C.BROWN等: "Enantiomeric (Z)- and (E)-crytyldiisopinocampheylboranes. Synthesis in high optical purity of all four possible stereoisomers of β-methylhomoallyl alcohols", <JOURNAL OF THE AMERICAN CHEMICAL SOCIETY> * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Brown et al. | Selective reductions. 30. Effect of cation and solvent on the reactivity of saline borohydrides for reduction of carboxylic esters. Improved procedures for the conversion of esters to alcohols by metal borohydrides | |
CN112321389B (zh) | 一种耐黄变l-薄荷醇的制备方法 | |
JP5360208B2 (ja) | 高純度含フッ素エーテルの製造方法 | |
CN113292402A (zh) | 一种合成3,8-二甲基-3,5,7-辛三烯-1,10-二醛的方法 | |
CN110862297A (zh) | 一种6碳骨架结构的手性醇类化合物的合成方法 | |
CN111039778B (zh) | 一种hfpo四聚体的制备方法 | |
CN114292162B (zh) | 3-氯-β-亚甲基苯乙醇类化合物及其中间体各自的制备方法 | |
CN109305912B (zh) | 由异丁醛缩合制备2,2,4-三甲基-1,3-戊二醇单异丁酸酯的方法 | |
CN108314641B (zh) | 一种天然产物Norpsilocin的制备方法 | |
CN102060659A (zh) | 高烯丙基醇的制备方法 | |
CN112409148A (zh) | 一种2反,6顺-壬二烯醛和2反,6顺-壬二烯醇的制备方法 | |
CN113004300A (zh) | 一种稳定同位素标记的展青霉素及其合成方法 | |
US10138189B2 (en) | Methods for producing 2,6-dimethyl-1,5-heptadien-3-ol and 2,6-dimethyl-1,5-heptadien-3-yl acetate | |
CN114656497B (zh) | 一种苯硅烷的制备方法 | |
CN104059094B (zh) | 9-硼杂双环[3.3.1]壬烷二聚体的合成方法 | |
CN114605244B (zh) | 一种环戊基甲醛的制备方法 | |
CN108299638B (zh) | 一种烯丙醇聚氧乙烯醚羧酸缩水甘油酯的合成方法 | |
JP4618781B2 (ja) | 新規プロリン誘導体、その製造方法、及びそれを用いた光学活性二級アルコール化合物の製造方法 | |
Cha et al. | Selective Reduction by Lithium Bis-or Tris (dialkylamino) aluminum Hydrides. Ⅶ. Reaction of Lithium Tris (dihexylamino) aluminum Hydride with Selected Organic Compounds Containing Representative Functional Groups $^ 1$ | |
KR20220073424A (ko) | In-situ (메트)아크릴산 아릴 에스터의 제조 방법 | |
CN113980686A (zh) | 一种含环己基的侧向邻二氟苯类液晶化合物的制备方法 | |
JP5747460B2 (ja) | ジアルコキシチオフェンの製造法 | |
US20110319642A1 (en) | PROCESS FOR PRODUCING (±)-3a,6,6,9a-TETRAMETHYL DODECAHYDRONAPHTHO[2,1-b]FURANS | |
CN114380721A (zh) | 一种用三氟甲磺酸制备三氟甲磺酸锌的方法 | |
CN118290456A (zh) | 一种二氟草酸硼酸盐的制备方法 |
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 | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200306 |