CN106478721B - 一种樟脑衍生的恶唑啉‑氧磷有机小分子催化剂及其制备方法 - Google Patents
一种樟脑衍生的恶唑啉‑氧磷有机小分子催化剂及其制备方法 Download PDFInfo
- Publication number
- CN106478721B CN106478721B CN201610879703.5A CN201610879703A CN106478721B CN 106478721 B CN106478721 B CN 106478721B CN 201610879703 A CN201610879703 A CN 201610879703A CN 106478721 B CN106478721 B CN 106478721B
- Authority
- CN
- China
- Prior art keywords
- bicyclic
- dimethyl
- camphor
- oxazoline
- dihydro
- 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.)
- Active
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 22
- DSSYKIVIOFKYAU-XCBNKYQSSA-N (R)-camphor Chemical compound C1C[C@@]2(C)C(=O)C[C@@H]1C2(C)C DSSYKIVIOFKYAU-XCBNKYQSSA-N 0.000 title claims abstract description 15
- 241000723346 Cinnamomum camphora Species 0.000 title claims abstract description 12
- -1 Oxazoline oxygen phosphorus Chemical compound 0.000 title claims abstract description 12
- 229960000846 camphor Drugs 0.000 title claims abstract description 12
- 229930008380 camphor Natural products 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 125000002619 bicyclic group Chemical group 0.000 claims abstract description 18
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 claims abstract description 13
- STVVMTBJNDTZBF-VIFPVBQESA-N L-phenylalaninol Chemical class OC[C@@H](N)CC1=CC=CC=C1 STVVMTBJNDTZBF-VIFPVBQESA-N 0.000 claims abstract description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 5
- 239000011574 phosphorus Substances 0.000 claims abstract description 5
- XGRJZXREYAXTGV-UHFFFAOYSA-N chlorodiphenylphosphine Chemical compound C=1C=CC=CC=1P(Cl)C1=CC=CC=C1 XGRJZXREYAXTGV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 25
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 16
- 239000002585 base Substances 0.000 claims description 16
- RWGLROKEYRSHME-UHFFFAOYSA-N 4-benzyl-4,5-dihydro-1,3-oxazole Chemical compound C=1C=CC=CC=1CC1COC=N1 RWGLROKEYRSHME-UHFFFAOYSA-N 0.000 claims description 12
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 12
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 claims description 10
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 6
- LEVONNIFUFSRKZ-UHFFFAOYSA-N 3-(carboxymethyl)-2,2-dimethylcyclobutane-1-carboxylic acid Chemical compound CC1(C)C(CC(O)=O)CC1C(O)=O LEVONNIFUFSRKZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 4
- 125000000468 ketone group Chemical group 0.000 claims description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-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
- 239000012280 lithium aluminium hydride Substances 0.000 claims description 2
- QARBMVPHQWIHKH-UHFFFAOYSA-N methanesulfonyl chloride Chemical compound CS(Cl)(=O)=O QARBMVPHQWIHKH-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000012359 Methanesulfonyl chloride Substances 0.000 claims 1
- XCVNDBIXFPGMIW-UHFFFAOYSA-N n-ethylpropan-1-amine Chemical compound CCCNCC XCVNDBIXFPGMIW-UHFFFAOYSA-N 0.000 claims 1
- 238000006555 catalytic reaction Methods 0.000 abstract description 12
- 239000003446 ligand Substances 0.000 abstract description 6
- 238000001212 derivatisation Methods 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract description 2
- 239000002243 precursor Substances 0.000 abstract description 2
- 241000894007 species Species 0.000 abstract description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 21
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 18
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- HSJKGGMUJITCBW-UHFFFAOYSA-N 3-hydroxybutanal Chemical compound CC(O)CC=O HSJKGGMUJITCBW-UHFFFAOYSA-N 0.000 description 8
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 8
- 235000019439 ethyl acetate Nutrition 0.000 description 8
- 238000003786 synthesis reaction Methods 0.000 description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 238000005575 aldol reaction Methods 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 5
- 239000003480 eluent Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000005160 1H NMR spectroscopy Methods 0.000 description 4
- 125000003504 2-oxazolinyl group Chemical group O1C(=NCC1)* 0.000 description 4
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 238000004440 column chromatography Methods 0.000 description 4
- 239000012043 crude product Substances 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000003810 ethyl acetate extraction Methods 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- UJHSIDUUJPTLDY-UHFFFAOYSA-N (2-nitrophenyl)-phenylmethanone Chemical class [O-][N+](=O)C1=CC=CC=C1C(=O)C1=CC=CC=C1 UJHSIDUUJPTLDY-UHFFFAOYSA-N 0.000 description 2
- BXRFQSNOROATLV-UHFFFAOYSA-N 4-nitrobenzaldehyde Chemical class [O-][N+](=O)C1=CC=C(C=O)C=C1 BXRFQSNOROATLV-UHFFFAOYSA-N 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 2
- 229910010082 LiAlH Inorganic materials 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000003934 aromatic aldehydes Chemical class 0.000 description 2
- 235000010233 benzoic acid Nutrition 0.000 description 2
- 235000010290 biphenyl Nutrition 0.000 description 2
- 239000004305 biphenyl Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 150000002466 imines Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ZCQWOFVYLHDMMC-UHFFFAOYSA-N Oxazole Chemical compound C1=COC=N1 ZCQWOFVYLHDMMC-UHFFFAOYSA-N 0.000 description 1
- 229910006124 SOCl2 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- AFCIMSXHQSIHQW-UHFFFAOYSA-N [O].[P] Chemical compound [O].[P] AFCIMSXHQSIHQW-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000000746 allylic group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- 239000007809 chemical reaction catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- CATSNJVOTSVZJV-UHFFFAOYSA-N heptan-2-one Chemical compound CCCCCC(C)=O CATSNJVOTSVZJV-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000005935 nucleophilic addition reaction Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006053 organic reaction Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 125000004437 phosphorous atom Chemical group 0.000 description 1
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Classifications
-
- 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
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6527—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having nitrogen and oxygen atoms as the only ring hetero atoms
- C07F9/653—Five-membered rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
- B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B53/00—Asymmetric syntheses
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/12—Preparation of nitro compounds by reactions not involving the formation of nitro groups
-
- 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
- C07C45/67—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 isomerisation; by change of size of the carbon skeleton
- C07C45/68—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 isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
- C07C45/72—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 isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
- C07C45/74—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 isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups combined with dehydration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
- B01J2231/34—Other additions, e.g. Monsanto-type carbonylations, addition to 1,2-C=X or 1,2-C-X triplebonds, additions to 1,4-C=C-C=X or 1,4-C=-C-X triple bonds with X, e.g. O, S, NH/N
- B01J2231/341—1,2-additions, e.g. aldol or Knoevenagel condensations
- B01J2231/342—Aldol type reactions, i.e. nucleophilic addition of C-H acidic compounds, their R3Si- or metal complex analogues, to aldehydes or ketones
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Abstract
本发明公开了一种樟脑衍生的恶唑啉‑氧磷有机小分子催化剂及其制备方法。本发明以手性樟脑为骨架,以L‑苯丙氨醇为恶唑啉前体,经过氯化、缩合、环化、还原,接二苯基氯化磷,最终合成了一种新型樟脑衍生的恶唑啉‑氧磷有机小分子催化剂4‑苄基‑2‑((1R,2R,4R)‑2‑二苯基磷氧基‑7,7‑二甲基双环[2.2.1]‑1‑庚基)‑4,5‑二氢恶唑。本发明以樟脑为骨架,利用其易衍生化的特点,结合恶唑啉的催化优势与含磷配体的高效选择性为一体,拓展了樟脑衍生的有机小分子催化剂及恶唑啉的种类,设计合成路线开发新的环境友好的有机小分子催化剂,有利于保护环境,节约资源。
Description
技术领域
本发明属于有机化学技术领域,尤其涉及一种樟脑衍生的恶唑啉-氧磷有机小分子催化剂及其制备方法。
背景技术
不对称合成是对映选择性地制备光学活性物质的有效手段,开发高效率、高选择性的手性催化剂是实现不对称合成的关键。已成熟开发的多为手性过渡金属催化剂,而在药物合成及农业化学中,最终的产品中即使存在痕量的有害金属元素也是不允许的,因此人们逐渐将注意力转向了不含金属的手性有机小分子催化的不对称合成反应。一般有机小分子作为不对称反应催化剂具有催化效率高和选择性好,适用范围广,结构简单,无毒廉价,易于负载和易回收等优点。
樟脑是一种廉价易得具有手性的天然产物,其自身骨架稳定,易于衍生化,手性环境不易破坏,从而被广泛地应用于不对称合成中。我国是合成樟脑的出口大国,但樟脑为初级产品,其价格较低。由樟脑衍生物合成的手性配体,在有机不对称合成和有机光学材料领域,正发挥着重大的作用,市场应用前景也在逐渐增大。
不对称催化合成的关键是如何设计和合成高选择性和催化活性的手性催化剂。众多的手性配体中,含氮、氧、磷等杂原子的配体在一些反应中越来越显示出其重要性。恶唑啉是比较优秀的一类手性配体,而且恶唑啉曾作为底物用来合成各种手性化合物,并取得了一定的成功,这使得它作为配体在不对称催化方面具有广阔的前景。自20世纪80年代以来,化学家们合成了各种恶唑啉配体,并将这些配体应用于各种不对称的催化反应中。如:不对称烯丙基取代反应、丙烯位氧化反应、烯烃及亚胺的环丙烷化反应、D-A反应、自由基加成反应、亚胺及醛的亲核加成反应以及硅氢还原反应等。由于磷原子体积比较大,可极化性大,因此烷基膦亲核性强,碱性却远远弱于相应的胺,已广泛用于不对称有机反应中。
发明内容
为了克服现有技术的不足,本发明的目的在于提供一种樟脑衍生的恶唑啉-氧磷有机小分子催化剂及其制备方法。本发明的有机小分子催化剂结合了樟脑骨架、恶唑啉环的优势,同时利用了含磷配体的高效选择性,在不对称催化中表现出良好的催化活性,制备方法简单。
本发明的技术方案具体介绍如下。
一种樟脑衍生的恶唑啉-氧磷有机小分子催化剂,其化学名称为4-苄基-2-((1R,2R,4R)-2-二苯基磷氧基-7,7-二甲基双环[2.2.1]-1-庚基)-4,5-二氢恶唑,具有如下所示的结构:
本发明还提供一种上述的樟脑衍生的恶唑啉-氧磷有机小分子催化剂的制备方法,其以手性樟脑为骨架,L-苯丙氨醇为恶唑啉前体,经过氯化、缩合、环化、还原,接二苯基氯化磷,最终合成了一种新型樟脑衍生的恶唑啉有机小分子催化剂4-苄基-2-((1R,2R,4R)-2-二苯基磷氧基-7,7-二甲基双环[2.2.1]-1-庚基)-4,5-二氢恶唑。其化学反应方程式如下:
具体步骤如下:
(1)将酮基蒎酸溶解于二氯亚砜中回流反应,反应结束后除去过量的二氯亚砜,将所得产品溶解于溶剂中,再在碱作用下和L-苯丙氨醇反应,得到(1R,4R)-N-苯丙氨醇-2-羰基-7,7-二甲基双环[2.2.1]-1-庚酰胺;
(2)将(1R,4R)-N-苯丙氨醇-2-羰基-7,7-二甲基双环[2.2.1]-1-庚酰胺和甲磺酰氯在缚酸剂下0~5℃的温度下反应,得到(1S,4R)-1-(4-苄基-4,5-二氢恶唑-2-基)-7,7-二甲基双环[2.2.1]-2-庚酮;
(3)将(1S,4R)-1-(4-苄基-4,5-二氢恶唑-2-基)-7,7-二甲基双环[2.2.1]-2-庚酮用四氢铝锂还原,得到(1R,2R,4R)-1-(4-苄基-4,5-二氢恶唑-2-基)-7,7-二甲基双环[2.2.1]-2-庚醇;
(4)(1R,2R,4R)-1-(4-苄基-4,5-二氢恶唑-2-基)-7,7-二甲基双环[2.2.1]-2-庚醇和二苯基氯化磷在正丁基锂n-BuLi作用下反应,得到4-苄基-2-((1R,2R,4R)-2-二苯基磷氧基-7,7-二甲基双环[2.2.1]-1-庚基)-4,5-二氢恶唑。
上述步骤(1)中,溶剂为二氯甲烷或四氢呋喃;碱为三乙胺或者二异丙基乙胺。
上述步骤(2)中,缚酸剂选自三乙胺或者二异丙基乙胺中一种或两种。
和现有技术相比,本发明的有益效果在于:本发明以酮基蒎酸为原料,利用其手性环境稳定及易衍生化的特点,将恶唑啉环的催化优势和含磷配体的高效选择性结合起来,不仅拓展了樟脑衍生物及恶唑啉配体的种类,而且,其在催化不对称Aldol反应的过程中表现出良好的催化活性和高效的对映选择性,在有机催化领域有广阔的应用前景。
具体实施方式
下面结合实际例子对本发明做进一步描述,本发明的实施例仅用于说明本发明的技术方案,并非限定本发明。
实施例1
(1)在烧瓶中加入酮基蒎酸(1.0g,5.5mmol)和SOCl2(4.5mL),回流2h,反应结束后旋蒸,除去过量的SOCl2,将旋蒸后的产品溶于CH2Cl2(3.8mL)中,标记为a。在另一烧瓶中加入L-苯丙氨醇(0.83g,5.5mmol)、Et3N(0.75mL,5.5mmol)和CH2Cl2(3mL),控制温度为0℃,N2保护下逐滴滴加a,反应1h。将得到的混合物用EtOAc(150mL)稀释,用2mol/L HCl(2×30mL),饱和的NaHCO3(2×30mL),盐水(30mL)洗涤,MgSO4干燥,减压浓缩后得到粗产品,粗产品用己烷/CH2Cl2重结晶得到白色晶体产物(1R,4R)-N-苯丙氨醇-2-羰基-7,7-二甲基双环[2.2.1]-1-庚酰胺1.43g,产率为82.8%。1H-NMR(501MHz,CDCl3):δ7.79(d,J=6.3Hz,1H),7.27(ddd,J=20.9,14.3,7.3Hz,5H),4.34–4.19(m,1H),3.78–3.66(m,1H),3.59(dd,J=10.9,5.9Hz,1H),3.11(s,1H),2.96(dd,J=13.8,6.7Hz,1H),2.86(dd,J=13.8,7.8Hz,1H),2.54–2.47(m,1H),2.43–2.34(m,1H),2.17–2.04(m,2H),1.97(d,J=18.7Hz,1H),1.44(dtt,J=21.4,9.3,4.0Hz,2H),1.23(s,3H),0.97(s,3H)ppm.
(2)在烧瓶中加入(1R,4R)-N-苯丙氨醇-2-羰基-7,7-二甲基双环[2.2.1]-1-庚酰胺(1.07g,3.4mmol),Et3N(5.8mL),二异丙基乙胺(1.2mL),CH2Cl2(17mL),控制温度为0℃,N2保护下逐滴滴加MsCl(6.75mmol),反应搅拌过夜。反应结束后,产物用EtOAc(200mL)稀释,H2O(2×25mL),盐水(25mL)洗涤,MgSO4干燥,减压浓缩后用石油醚/乙酸乙酯洗脱液进行洗脱,得到白色晶体产物(1S,4R)-1-(4-苄基-4,5-二氢恶唑-2-基)-7,7-二甲基双环[2.2.1]-2-庚酮0.81g,产率为80.7%。1H-NMR(501MHz,CDCl3):δ7.39–7.17(m,5H),4.52–4.37(m,1H),4.18(t,J=8.9Hz,1H),4.08–4.02(m,1H),3.22(dd,J=13.7,4.7Hz,1H),2.66(dd,J=13.7,9.3Hz,1H),2.57(dt,J=18.3,3.7Hz,1H),2.46–2.38(m,1H),2.16(t,J=4.3Hz,1H),2.08(ddq,J=12.0,7.9,4.0Hz,1H),1.99(d,J=18.3Hz,1H),1.82(ddd,J=14.1,9.4,4.8Hz,1H),1.45(ddd,J=12.9,9.4,4.0Hz,1H),1.16(s,3H),1.09(s,3H)ppm.(3)在烧瓶中加入(1S,4R)-1-(4-苄基-4,5-二氢恶唑-2-基)-7,7-二甲基双环[2.2.1]-2-庚酮(0.50g,1.67mmol),除水的THF(17mL),控制温度为-40℃,N2保护下逐滴滴加[LiAlH4·2THF]溶液(1mol/L,1.5mL,1.5mmol),TCL追踪至原料反应完为止。反应结束后,用Na2SO4·10H2O淬灭LiAlH4,过滤后,滤液用EtOAc(150mL)稀释,盐水(3×10mL)洗涤,MgSO4干燥,减压浓缩后用石油醚/乙酸乙酯洗脱液进行洗脱,得到白色晶体产物(1R,2R,4R)-1-(4-苄基-4,5-二氢恶唑-2-基)-7,7-二甲基双环[2.2.1]-2-庚醇0.45g产率为90.1%。1H-NMR(501MHz,CDCl3):δ7.42–7.14(m,5H),5.84(s,1H),4.47–4.31(m,1H),4.21(t,J=8.8Hz,1H),4.07–3.86(m,2H),3.04(dd,J=13.5,5.7Hz,1H),2.75(dd,J=12.2,8.2Hz,1H),2.14(t,J=12.0Hz,1H),2.00–1.66(m,5H),1.21(s,J=3.8Hz,3H),1.05(s,3H)ppm.
(4)N2保护下,将(1R,2R,4R)-1-(4-苄基-4,5-二氢恶唑-2-基)-7,7-二甲基双环[2.2.1]-2-庚醇(0.5g,1.67mmol)溶解于除水的有机溶剂THF(4ml)中,控制温度为-78℃,搅拌下缓慢滴加正丁基锂(1.6mol/L,1.1ml),反应1h,随后升温至室温反应0.5h,然后缓慢滴加二苯基氯化磷(1.229g/mL,0.32mL),反应1h,再回流反应2h,反应完全后,逐滴滴加饱和的NH4Cl溶液淬灭正丁基锂,过滤后,滤液产物经柱层析,得到最终产物4-苄基-2-((1R,2R,4R)-2-二苯基磷氧基-7,7-二甲基双环[2.2.1]-1-庚基)-4,5-二氢恶唑0.61g,产率为76.4%。1H-NMR(501MHz,CDCl3):δ7.81–7.73(m,4H),7.51–7.38(m,6H),7.28–7.14(m,5H),4.74–4.67(m,1H),4.33–4.21(m,1H),3.82–3.75(m,1H),3.70(t,J=8.9Hz,1H),3.04(dd,J=13.7,4.7Hz,1H),2.60(dd,J=13.7,8.4Hz,1H),2.15(d,J=10.3Hz,1H),1.75(dd,J=25.0,10.3Hz,4H),1.48(s,3H),1.25(t,J=7.1Hz,2H),1.15(s,3H)ppm.
催化活性测试
1、以丙酮和4-硝基苯甲醛为底物,对实施例1合成的催化剂在催化不对称Aldol反应中的活性进行了确认。
在溶解了添加剂和所制催化剂的有机溶剂DMF(4ml)混合液中加入丙酮(0.8ml,10mmol,5倍当量),在0℃下,加入乙醛(0.5mmol,1倍当量),TLC追踪原料反应完全后,用NH4Cl淬灭反应液,乙酸乙酯萃取,无水Na2SO4干燥,粗产物用柱层析纯化,己烷/乙酸乙酯做洗脱液,得到纯化的Aldol反应产物(R)-4-羟基-4-(4-硝基苯基)-2-丁酮,表1表示了催化剂和添加剂对不对称Aldol反应活性的影响。
表1
2、以丙酮和4-硝基苯甲醛为底物,考察了所制的催化剂在不同溶剂和不同温度条件下对Aldol反应活性的影响。
在溶解了苯甲酸(2mol%)和所制催化剂(5mol%)的有机溶剂(4ml)混合液中加入丙酮(0.8ml,10mmol,5倍当量),在一定温度下,加入乙醛(0.5mmol,1倍当量),TLC追踪原料反应完全后,用NH4Cl淬灭反应液,乙酸乙酯萃取,无水Na2SO4干燥,粗产物用柱层析纯化,己烷/乙酸乙酯做洗脱液,得到纯化的Aldol反应产物(R)-4-羟基-4-(4-硝基苯基)-2-丁酮,表2表示了所制的催化剂在不同溶剂和温度下对Aldol反应活性的影响。
表2
3、以丙酮和芳香醛为底物,通过改变底物的R基团来考察所制的催化剂对Aldol反应的稳定性。
在溶解了苯甲酸(2mol%)和所制催化剂(5mol%)的有机溶剂DMF(4ml)混合液中加入丙酮(0.8ml,10mmol,5倍当量),在一定温度下,加入芳香醛(0.5mmol,1倍当量),TLC追踪原料反应完全后,用NH4Cl淬灭反应液,乙酸乙酯萃取,无水Na2SO4干燥,粗产物用柱层析纯化,己烷/乙酸乙酯做洗脱液,得到纯化的Aldol反应产物,表3表示了该反应条件下不同反应底物的稳定性。
表3
上述方案仅为本发明的优选技术方案,但本发明的保护范围并不局限于此,根据本发明的技术方案所做的等效方案,均属于本发明的保护范围。
Claims (4)
1.一种樟脑衍生的恶唑啉-氧磷有机小分子催化剂,其特征在于,其化学名称为4-苄基-2-((1R,2R,4R)-2-二苯基磷氧基-7,7-二甲基双环[2.2.1]-1-庚基)-4,5-二氢恶唑,具有如下所示的结构:
2.一种如权利要求1所述的樟脑衍生的恶唑啉-氧磷有机小分子催化剂的制备方法,其特征在于,具体步骤如下:
(1)将酮基蒎酸溶解于二氯亚砜中回流反应,反应结束后除去过量的二氯亚砜,将所得产品溶解于溶剂中,再在碱作用下和L-苯丙氨醇反应,得到(1R,4R)-N-苯丙氨醇-2-羰基-7,7-二甲基双环[2.2.1]-1-庚酰胺;
(2)将(1R,4R)-N-苯丙氨醇-2-羰基-7,7-二甲基双环[2.2.1]-1-庚酰胺和甲磺酰氯在缚酸剂下0~5℃的温度下反应,得到(1S,4R)-1-(4-苄基-4,5-二氢恶唑-2-基)-7,7-二甲基双环[2.2.1]-2-庚酮;
(3)将(1S,4R)-1-(4-苄基-4,5-二氢恶唑-2-基)-7,7-二甲基双环[2.2.1]-2-庚酮用四氢铝锂还原,得到(1R,2R,4R)-1-(4-苄基-4,5-二氢恶唑-2-基)-7,7-二甲基双环[2.2.1]-2-庚醇;
(4)(1R,2R,4R)-1-(4-苄基-4,5-二氢恶唑-2-基)-7,7-二甲基双环[2.2.1]-2-庚醇和二苯基氯化磷在正丁基锂作用下反应,得到4-苄基-2-((1R,2R,4R)-2-二苯基磷氧基-7,7-二甲基双环[2.2.1]-1-庚基)-4,5-二氢恶唑。
3.如权利要求2所述的制备方法,其特征在于:步骤(1)中,溶剂为二氯甲烷或四氢呋喃;碱为三乙胺或者二异丙基乙胺。
4.如权利要求2所述的制备方法,其特征在于,步骤(2)中,缚酸剂选自三乙胺或者二异丙基乙胺中一种或两种。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610879703.5A CN106478721B (zh) | 2016-10-08 | 2016-10-08 | 一种樟脑衍生的恶唑啉‑氧磷有机小分子催化剂及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610879703.5A CN106478721B (zh) | 2016-10-08 | 2016-10-08 | 一种樟脑衍生的恶唑啉‑氧磷有机小分子催化剂及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106478721A CN106478721A (zh) | 2017-03-08 |
CN106478721B true CN106478721B (zh) | 2018-03-30 |
Family
ID=58268634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610879703.5A Active CN106478721B (zh) | 2016-10-08 | 2016-10-08 | 一种樟脑衍生的恶唑啉‑氧磷有机小分子催化剂及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106478721B (zh) |
-
2016
- 2016-10-08 CN CN201610879703.5A patent/CN106478721B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN106478721A (zh) | 2017-03-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110041362A (zh) | 光催化合成1-烷基-1-膦酰基环丙烷的方法 | |
CN112110933B (zh) | 一种木脂素类天然产物及其中间体、制备方法 | |
CN111072605B (zh) | 一种氟烷基取代的苯并呋喃衍生物或吲哚衍生物的制备方法 | |
JP4649645B2 (ja) | 光学活性アルコール化合物の製法 | |
CN106478721B (zh) | 一种樟脑衍生的恶唑啉‑氧磷有机小分子催化剂及其制备方法 | |
CN110590658A (zh) | 一种催化氢化含氮不饱和杂环化合物的方法 | |
CN110204474A (zh) | 一种合成对四取代nh-吡咯类化合物的方法 | |
CN105732648A (zh) | 一种吡咯并呋喃的含氮杂环化合物及合成方法 | |
CN103402973A (zh) | 化合物及其生产方法,以及用于生产磷酸奥司他韦的方法 | |
JP2016198736A (ja) | アミノサリチルアルジミン配位子を金属に配位させた触媒及びこれを用いたヨード環化体の製造方法 | |
CN106478720B (zh) | 一种有机小分子催化剂及其制备方法 | |
CN106478719B (zh) | 一种手性催化剂及其制备方法 | |
CN102627571B (zh) | 一种手性铵盐的制备及合成方法 | |
US20080275274A1 (en) | Process for the preparation of enantiomerically enriched compounds | |
CN111039767B (zh) | 一种三唑卡宾催化制备氘代醛的方法 | |
CN107325025B (zh) | 一种手性α-氨基酸衍生物及其制备方法 | |
CN106242934A (zh) | 一种酮的β‑位C‑H键乙酰氧化合成方法 | |
CN109020922B (zh) | 一种环状磺酰胺类化合物的制备方法 | |
JP4639368B2 (ja) | 光学活性なβ−ヒドロキシカルボニル化合物の製法 | |
CN107759540A (zh) | 一种丁内酯衍生物的制法 | |
CN115340475B (zh) | 一种1-氧化二苯基二氮烯或其衍生物的制备方法 | |
CN110724064B (zh) | 一种镍催化合成2-环己烷基取代苯甲酰胺的方法 | |
US6201158B1 (en) | Process for making intermediate aldehydes | |
CN107459530A (zh) | 一种新型硅基取代的1,3‑异喹啉二酮衍生物及其制备方法 | |
CN107629039A (zh) | 氘代丙烯酰胺的制备方法和中间体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | 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 | ||
EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20170308 Assignee: SHANGHAI ZAIQI BIO-TECH Co.,Ltd. Assignor: SHANGHAI INSTITUTE OF TECHNOLOGY Contract record no.: X2024980005509 Denomination of invention: A camphor derived oxazoline phosphorus oxide organic small molecule catalyst and its preparation method Granted publication date: 20180330 License type: Common License Record date: 20240509 |
|
EE01 | Entry into force of recordation of patent licensing contract |