CN107400036B - A method of synthesis 1,2- dimethylene cyclobutane chipal compounds - Google Patents

A method of synthesis 1,2- dimethylene cyclobutane chipal compounds Download PDF

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CN107400036B
CN107400036B CN201610335358.9A CN201610335358A CN107400036B CN 107400036 B CN107400036 B CN 107400036B CN 201610335358 A CN201610335358 A CN 201610335358A CN 107400036 B CN107400036 B CN 107400036B
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康强
郑伟锋
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Fujian Institute of Research on the Structure of Matter of CAS
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Abstract

This application discloses a kind of methods for synthesizing 1,2- dimethylene cyclobutane chipal compounds to synthesize 1,2- dimethylene cyclobutane chipal compounds by connection enamine compound in the presence of rhodium complex.This method can under mild reaction conditions, the synthesis 1 of high efficiency, high enantioselectivity and highly-solid selectively, 2- dimethylene cyclobutane chipal compounds.

Description

A method of synthesis 1,2- dimethylene cyclobutane chipal compounds
Technical field
This application involves a kind of methods for synthesizing 1,2- dimethylene cyclobutane chipal compounds, belong to natural products and medicine Object field.
Background technique
Cyclobutane derivative compound has critical role in many natural products and drug molecule.And ring fourth is synthesized at present The method of alkane mainly passes through alkene, alkynes, connection alkene and other unsaturated systems and synthesizes cyclobutane by [2+2] cycloaddition.Closely Nian Lai has synthesized the method for cyclobutane making alkene or connection alkene that [2+2] cycloaddition occur with other unsaturated systems by heating Largely studied, but such reaction has that selectivity is bad, reaction temperature is high (typically larger than 200 DEG C), when reaction Between long (typically larger than 72h) the shortcomings that.
As the method for [2+2] cycloaddition synthesis cyclobutane makes progress in photocatalysis field, [the 2+ about metal catalytic 2] cycloaddition synthesis cyclobutane method gradually increase, wherein report about gold [Angew.Chem.Int.Ed.2009,48, 4532-4535;Org.Lett.2012,14,436-439.], palladium [J.Am.Chem.Soc.2000,122,11529-11530; Angew.Chem.Int.Ed.2006,45,8009-8013.], nickel [J.Am.Chem.Soc.1985,107,3160-3172; J.Am.Chem.Soc.1988,110,8494-8500;J.Am.Chem.Soc.1989,111,3761-3762; J.Am.Chem.Soc.2000,122,10776-10780.], the metals such as copper [Org.Lett.2012,14,1366-1369.] Catalysis reaction.The reaction of metal catalytic is remarkably improved regioselectivity and stereoselectivity.
Currently, not yet being had been reported that in the method that connection enamine [2+2] cycloaddition of rhodium catalysis prepares chiral cyclobutane.
Summary of the invention
The application's is designed to provide a kind of method for synthesizing 1,2- dimethylene cyclobutane chipal compounds.Match in rhodium In the presence of body object, 1,2- dimethylene cyclobutane chipal compounds are synthesized by connection enamine compound.This method can be mild Reaction condition under, the synthesis 1 of high efficiency, high enantioselectivity and highly-solid selectively, 2- dimethylene cyclobutane chirality Close object.
The method of synthesis 1, the 2- dimethylene cyclobutane chipal compounds, which is characterized in that in depositing for rhodium complex Under, 1,2- dimethylene cyclobutane chipal compounds are synthesized by connection enamine compound;
The rhodium complex is formed by the rhodium source containing rhodium element with ligand;The ligand is chiral ligand and/or non-hand Property ligand;The chiral ligand and achiral ligand are selected from the organic compound containing P elements and/or nitrogen extremely Few one kind;
The enamine compound is selected from least one of the compound with chemical structural formula shown in Formulas I:
The 1,2- dimethylene cyclobutane chipal compounds are the compounds with the chemical structural formula as shown in Formula II -1 And/or the compound with the chemical structural formula as shown in Formula II -2:
In Formulas I, Formula II -1 and Formula II -2, R1、R2Independently selected from hydrogen, carbon atom number no more than 18 aliphatic group, have The group of structural formula shown in formula III, the group with structural formula shown in Formula V, has formula at the group with structural formula shown in Formula IV The group of structural formula shown in VI or group with structural formula shown in Formula VII:
In formula III, R3Aliphatic group, carbon atom number selected from carbon atom number no more than 18 are no more than 18 substituted fatty hydrocarbon Base, substituted aryl, heteroaryl, substituted heteroaryl, aralkyl, substituted aralkyl, heteroarylalkyl, replaces heteroarylalkyl at aryl;
R4- A- formula IV
In formula IV, A is selected from the alkylene that carbon atom number is no more than 10;R4It is no more than 18 aliphatic hydrocarbon selected from carbon atom number The substituted fatty hydrocarbon base of base, carbon atom number no more than 18, aryl, substituted aryl, heteroaryl, substituted heteroaryl, aralkyl, substitution Aralkyl, replaces heteroarylalkyl, silylation at heteroarylalkyl;
R5- O-B- Formula V
In Formula V, B is selected from the alkylene from carbon atom number no more than 10;R5It is no more than 18 aliphatic hydrocarbon selected from carbon atom number The substituted fatty hydrocarbon base of base, carbon atom number no more than 18, aryl, substituted aryl, heteroaryl, substituted heteroaryl, aralkyl, substitution Aralkyl, replaces heteroarylalkyl, silylation at heteroarylalkyl;
In Formula IV, R6Aliphatic group, carbon atom number selected from carbon atom number no more than 18 are no more than 18 substituted fatty hydrocarbon Base, substituted aryl, heteroaryl, substituted heteroaryl, aralkyl, substituted aralkyl, heteroarylalkyl, replaces heteroarylalkyl, silicon at aryl Alkyl;
In Formula VII, R7Aliphatic group, carbon atom number selected from carbon atom number no more than 18 are no more than 18 substituted fatty hydrocarbon Base, substituted aryl, heteroaryl, substituted heteroaryl, aralkyl, substituted aralkyl, heteroarylalkyl, replaces heteroarylalkyl, silicon at aryl Alkyl.
Substituted fatty hydrocarbon base of the carbon atom number no more than 18 is substituted by least one hydrogen atom on aliphatic group Base substitution is formed by group;Preferably, the substituent group on the substituted fatty hydrocarbon base is in nitro, amino, F, Cl, Br, I At least one.
The substituted aryl is that at least one hydrogen atom is substituted with a substituent and is formed by group on the aromatic rings by aryl; Preferably, the substituent group on the substituted aryl be selected from carbon atom number no more than 18 aliphatic group, nitro, amino, F, Cl, At least one of Br, I.
The substituted heteroaryl is that at least one hydrogen atom is substituted with a substituent and is formed by the hetero-aromatic ring by heteroaryl Group;Substituent group on the substituted heteroaryl be selected from aliphatic group of the carbon atom number no more than 18, nitro, amino, F, Cl, At least one of Br, I.
As a kind of preferred scheme of the application, in Formulas I and Formula II, R1、R2Independently selected from carbon atom number no more than 18 Aliphatic group, acetyl group (being abbreviated as Ac), benzyl (being abbreviated as Bn), 1- menaphthyl, 4- methoxy-benzyl, tert-butyldimethyl silyl Oxygen ethyl, 3,3- diphenyl propyl, 2- phenethyl, furfuryl, thienylethyl, indolylethyl, 1,3- benzo dioxy -5- first Base, tertbutyloxycarbonyl (being abbreviated as Boc), benzoyl (being abbreviated as Bz), tablet held before the breast by officials methoxycarbonyl group (being abbreviated as Fmoc), tri-chloroethoxy base Formoxyl (being abbreviated as Troc), p-nitrophenyl sulfonyl (are abbreviated as Methyl benzenesulfonyl base (being abbreviated as TS) or methyl sulphonyl MS)。
As a kind of preferred scheme of the application, R1And R2In at least one be selected from the base with structural formula shown in formula III Group.It is further preferred that R1And R2In at least one be p-nitrophenyl sulfonyl, to Methyl benzenesulfonyl base or methyl sulphonyl.
As a kind of preferred scheme of the application, R1And R2One of them is selected from the group with structural formula shown in formula III. It is further preferred that R1And R2One of them is p-nitrophenyl sulfonyl, to Methyl benzenesulfonyl base or methyl sulphonyl.
Those skilled in the art can select suitable rhodium Base Metal organic compound as rhodium source according to actual needs.It is excellent Selection of land, the rhodium source are selected from dimerization rhodium acetate [Rh (CH3COO)]2, triphenylphosphine rhodium carbonyl chloride Rh (PPh3) Cl (CO), dimerization It closes hydroxyl (1,5- cyclo-octadiene) rhodium (I) [Rh (COD) OH]2, praseodynium rhodium (III) Rh (CH3COCHCOCH3)3, four carbonyls Two rhodium of base dichloride [Rh (CO)2Cl]2, (1,5- cyclo-octadiene) chlorine rhodium (I) dimer [Rh (COD)2Cl]2, two rhodium of dichloride (double down borneol diene) [Rh (NBD) Cl]2, acetylacetone,2,4-pentanedione bi-vinyl rhodium Rh (acac) (C2H4)2, (1,5- ring is pungent for acetylacetone,2,4-pentanedione Diene) rhodium Rh (acac) (COD), trifluoroacetic acid rhodium (II) dimer Rh2(CF3COO)4, four or three [- (+)-N- is (to dodecyl Benzene sulfonyl) porphyrin] two rhodium Rh2(R-DOSP)4, dichloro (pentamethylcyclopentadiene base) close rhodium dimer (Cp*RhCl2)2, triphen Base phosphine hydrogenized carbonyl rhodium Rh (PPh3At least one of) H (CO).
As an implementation, the ligand is achiral ligand, selected from the chemical combination with structural formula shown in formula (1) The compound of structural formula shown in the compound of structural formula shown in the compound of structural formula shown in object, formula (2), formula (3), formula (4), formula (5) at least one of the compound of structural formula shown in the compound of structural formula shown in, formula (6):
In formula (1), R8Selected from hydrogen ,-CH3、—OCH3、—N(CH3)2、—OCH(CH3)2;R9Selected from hydrogen ,-OCH3、—N (CH3)2、—OCH(CH3)2;R10Selected from cyclohexyl ,-C (CH3)3
In formula (2), R11Selected from-OCH2CH3、—C(CH3)3, phenyl;
In formula (3), R12Selected from phenyl, cyclohexyl;N is 1 or 3;
In formula (4), R13Selected from phenyl ,-C (CH3)3
In formula (5), R14Selected from hydrogen, phenyl ,-CH3;R15Selected from hydrogen ,-CH3、—C(CH3)3
In formula (6), R16Selected from-CH3Or-COOH.
As an implementation, the ligand is chiral ligand, selected from structural formula shown in formula (7) compound, The compound of structural formula shown in the compound of structural formula shown in the compound of structural formula shown in formula (8), formula (9), formula (10), formula (11) compound of structural formula shown in the compound of structural formula shown in the compound of structural formula shown in, formula (12), formula (13), formula (14) compound of structural formula shown in the compound of structural formula shown in the compound of structural formula shown in, formula (15), formula (16), formula (17) compound of structural formula shown in the compound of structural formula shown in the compound of structural formula shown in, formula (18), formula (19), formula (20) at least one of the compound of structural formula shown in:
In formula (7), R17Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3, 5- 3,5-dimethylphenyl, p-nitrophenyl;R18Selected from methyl, phenyl, tert-butyl, isopropyl, cyclohexyl;
In formula (8), R19Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3, 5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (9), R20Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3, 5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (10), R21Selected from methyl, phenyl, trifluoromethy phenyl;R22Selected from methyl, phenyl, trifluoromethy benzene Base, methoxyphenyl, 2,4,6- trimethylphenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (11), R23Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (12), R24Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (13), R25Selected from H, F;R26Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- Trimethylphenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (18), R27Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (19), R28Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (20), R29Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl.
When ligand is achiral ligand, 1, the 2- dimethylene cyclobutane chipal compounds are that have such as -1 institute of Formula II Show the compound of chemical structural formula and mixing that compound mole ratio example with the chemical structural formula as shown in Formula II -2 is 1:1 Object;I.e. products therefrom is racemic product.
When ligand is chiral ligand, 1, the 2- dimethylene cyclobutane chipal compounds mainly have such as Formula II -1 The compound of shown chemical structural formula;I.e. products therefrom has optical activity.
Preferably, the achiral ligand is selected from the compound of structural formula shown in formula (4).
Preferably, the chiral ligand is selected from the compound of structural formula shown in formula (12).
As the application preferred embodiment, the method for synthesis 1, the 2- dimethylene cyclobutane chipal compounds, It at least includes the following steps:
A) rhodium source, chirality and/or achiral ligand, connection enamine compound are added in organic solvent, in -78 DEG C to 120 It is stirred to react at DEG C 10 minutes to 120 hours;
B) after reaction, add water quenching to go out, through liquid separation, washing, drying, remove organic solvent, separation to get described 1,2- Dimethylene cyclobutane chipal compounds.
The reaction equation of the synthesis 1,2- dimethylene cyclobutane chipal compounds method is as follows:
Preferably, reaction temperature is -20 DEG C to 100 DEG C in step a).It is further preferred that reaction temperature is in step a) 0 DEG C to 100 DEG C.It is further preferred that reaction temperature is 20 DEG C to 100 DEG C in step a).
Preferably, the reaction time is 10 minutes to 48 hours in step a).It is further preferred that the reaction time in step a) It is 10 minutes to 10 hours.It is further preferred that the reaction time is 30 minutes to 8 hours in step a).
Preferably, the molar ratio of enamine compound and rhodium source and ligand is joined in step a) are as follows:
Join enamine compound: Rh: ligand=1:0.01~1:0.01~1;
In terms of the molal quantity of the molal quantity in rhodium source rhodium element contained in the rhodium source.
It is further preferred that joining the molar ratio of enamine compound and rhodium source and ligand in step a) are as follows:
Join enamine compound: Rh: ligand=1:0.01~0.15:0.05~0.50.
Those skilled in the art can according to actual needs, the additional amount selected from organic solvent.Preferably, organic solvent adds Enter amount and join enamine compound ratio are as follows: in the organic solvent of 1L join enamine compound molal quantity be 0.05mol~ 0.5mol。
Preferably, organic solvent described in step a) is selected from benzene, carbon tetrachloride, petroleum ether, tetrahydrofuran, dimethyl formyl Amine, acetone, ether, methylene chloride, chloroform, toluene, dimethylbenzene, chlorobenzene, o-dichlorohenzene, hexamethylene, n-hexane, positive heptan At least one of alkane, six ring of dioxane, acetonitrile, methanol, ethyl alcohol, pentane.
Preferably, step b) the isolated method selected from recrystallization, thin-layer chromatography, column chromatography, vacuum distillation in extremely Few one kind.
Preferably, in the recrystallization, thin-layer chromatography and column chromatography method, used solvent is polar solvent and non-pole The mixture of property solvent;Wherein, the volume ratio of polar solvent and nonpolar solvent is 1:0.1~500.It is further preferred that institute It states in recrystallization, thin-layer chromatography and column chromatography method, used solvent is selected from methylene chloride-n-hexane mixture, isopropyl Alcohol-petroleum ether mixture, the mixture of ethyl acetate-light petrol, the mixture of ethyl acetate-hexane, isopropanol-acetic acid Any one in ethyl ester-petroleum ether mixture.It is further preferred that the recrystallization, thin-layer chromatography and column chromatography side In method, used solvent is selected from the mixing of ethyl acetate/petroleum ether volume ratio=1:0.1~50 ethyl acetate-light petrol Object, isopropanol/petroleum ether volume ratio=1:0.1~500 isopropanol-petroleum ether mixture.
In the application, " aliphatic group " is to be formed by base by losing any one hydrogen atom on aliphatic hydrocarbon compound molecule Group.The aliphatic hydrocarbon compound does not contain aromatic rings or hetero-aromatic ring, including alkane compound, the olefinic compound containing C=C double bond Object, the acetylene hydrocarbon compound containing three key of C ≡ C, the unsaturated hydrocarbon compound simultaneously containing three key of C=C double bond and C ≡ C.This Shen Please in, " alkyl " is to be formed by group by losing any one hydrogen atom on alkane compound molecule.The alkane compound Including linear paraffin, branched paraffin, cycloalkane, with the cycloalkane of branch.In the application, " aryl " is aromatic compound point A hydrogen atom on aromatic rings is lost on son is formed by group;Benzene is formed by as lost any one hydrogen atom on phenyl ring Base.In the application, " heteroaryl " is to contain the heteroatomic aromatic compound of O, N, S (abbreviation heteroaryl chemical combination in aromatic rings Object) any one hydrogen atom on aromatic rings is lost on molecule is formed by group;As lost any one hydrogen atom on piperazine ring Formed piperazinyl.In the application, " aralkyl " is the aromatic compound containing alkyl substituent, loses alkyl on molecule and takes The upper any hydrogen atom of Dai Ji is formed by group;Benzyl is formed by as toluene loses a hydrogen atom on methyl." heteroaryl alkane Base " is to lose alkyl containing the heteroatomic aromatic compound of O, N, S is contained in alkyl substituent and aromatic rings on molecule and take Any one upper hydrogen atom of Dai Ji is formed by group;Such as 1,3- benzo dioxy -5- methyl.In the application, " alkylene " be by Any two hydrogen atom is lost on hydrocarbon molecules is formed by group;As methyl loses the methylene of two hydrogen atoms formation Two hydrogen atoms of contraposition are lost on base or phenyl ring is formed by group.In the chemical formula or structure of the application, " Ph " is phenyl It writes a Chinese character in simplified form;"tBu " is writing a Chinese character in simplified form for tert-butyl;" ac " is writing a Chinese character in simplified form for acetyl group;" acac " is writing a Chinese character in simplified form for levulinic ketone group;" Cp " is ring Pentadienyl is write a Chinese character in simplified form;" COD " is writing a Chinese character in simplified form for cyclo-octadiene base;" NBD " is the letter of bicycloheptadiene (alias: norbornadiene) It writes;" DOSP " is (to dodecyl benzene sulfonyl) that porphyryl is write a Chinese character in simplified form.
The beneficial effect of the application includes but is not limited to:
(1) method provided herein, to join enamine compound as Material synthesis 1,2- dimethylene cyclobutane is chiral Compound has the advantages that high-efficient, enantioselectivity is high and stereoselectivity is high.
(2) method provided herein uses rhodium complex as catalyst, and reaction condition is mild, easy to operate, produces Object separating-purifying is easy, and product yield high, purity are good.
Specific embodiment
The application is described in detail below with reference to embodiment, but the application is not limited to these embodiments.
In embodiment, unless otherwise instructed, test condition is as follows:
Nuclear magnetic resoance spectrum1H-NMR and13C-NMR uses the III type spectroscope of 400AVANCE of Brooker company (Bruker) (Spectrometer) it measures, 400MHz, the deuterated methane CDCl of trichlorine3.Product analysis is detected using thin-layered chromatography, and solvent is The mixture (volume ratio ethyl acetate/petroleum ether=1/5) of ethyl acetate and petroleum ether.Infrared spectrum analysis (IR) is using Germany The 27 type ftir analysis instrument of TENSOR of Brooker company.High resolution mass spectrum is analyzed HRMS and is flown using match is silent The LTQ FT Ultra system mass spectrograph of your scientific & technical corporation (Thermo Fisher Scientific) of generation.Enantioselectivity Excessive value analysis uses Shimadzu Corporation (Shimadzu) high-efficient liquid phase chromatogram HPLC LC-20AD, and chiral column uses Daicel company (Daicel Chemical Industries, LTD) Chiralpak IA, IB, ID, IF column.Angle-of-rotation measuring uses Shanghai object Light INESA SGW-1 automatic polarimeter.
In embodiment, the yield of 1,2- dimethylene cyclobutane chipal compounds is calculated by the following formula to obtain: yield =(quality of 1,2- dimethylene cyclobutane chipal compounds)/(connection enamine compound molal quantity × 1,2- dimethylene ring fourth The molal weight of alkane chipal compounds) × 100%.
In embodiment, bis- (1,5- cyclo-octadiene) radium chlorides are expressed as [Rh (COD) Cl]2
The preparation of 1 product 1 of embodiment
Product 1: R in Formula II -1 and Formula II -21And R2Respectively benzyl, to Methyl benzenesulfonyl base (being abbreviated as TS);Formula II -1 Corresponding product is denoted as product 1-1, and -1 corresponding product of Formula II is denoted as product 1-2.
The Chinese of product 1-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- benzyls Base -4- is to Methyl benzenesulfonyl base);
The English name of product 1-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(N-benzyl-4- methy lbenzenesulfonamide)
The structural formula of product 1-1 and 1-2 are respectively as follows:
The connection enamine raw material of use are as follows: R in Formulas I1And R2Respectively benzyl and the connection enamine to Methyl benzenesulfonyl base.Specifically Preparation process is as follows:
In dry reaction tube, rhodium source, ligand, connection enamine, organic solvent are sequentially added, stirs one under reaction temperature Section time, reaction terminate, and 1.5 times of organic solvent volume of water quenching is added and goes out, liquid separation retains organic layer.Organic layer is using organic molten After the saturated salt solution that 2.5 times of agent volume washs 3 times respectively, anhydrous Na is used2SO4Dry, vacuum distillation removes organic solvent, warp Column chromatographs (solvent: volume ratio ethyl acetate/petroleum ether=1/5) separation, and obtained solid is product 1.
Specifically the relationship of raw material, proportion, reaction condition, product yield and gained sample number into spectrum is as shown in table 1.
Table 1
Sample 1#- 1~sample 1#- 10 fusing point (mp): 135~137 DEG C.
Using thin-layer chromatography to sample 1#- 10 analyses: Rf=0.30 (ethyl acetate/petroleum ether=1/5, v/v).
Using nuclear magnetic resonance to sample 1#- 10 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 7.59 (d, J=8.0Hz, 4H), 7.27 (d, J=6.0Hz, 14H), 5.16 (s, 2H), 4.82 (s, 2H), 4.59 (d, J=15.6Hz, 2H), 4.08 (s, 2H), 3.97 (d, J=15.6Hz, 2H),2.43(s,6H)。13C NMR(100MHz,CDCl3) chemical shift (ppm): 143.5,142.3,137.2,137.0, 129.7,128.6,127.7,127.3,108.0,62.3,48.7,21.6。
Using infrared spectroscopy to sample 1#- 10 detections (KBr), in following wave number (cm-1) there is a diffraction maximum in position: 546,598, 660,698,740,771,813,1027.63,1090,1161,1344,1455,1494,1597,2924,3030。
Using high resolution mass spectrum HRMS (ESI+) to sample 1#- 10 analyses, as a result as follows:
With [C34H34N2O4S2+H]+Meter, calculated value: 599.2035;Test data: 599.2033.
Sample 1#- 1~sample 1#The analysis result of -9 thin-layer chromatography, nuclear magnetic resonance, infrared spectroscopy and high resolution mass spectrum With sample 1#- 10 result is similar.Illustrate that technical solution provided herein is capable of the preparation 1 of highly selective high-purity, 2- dimethylene cyclobutane chipal compounds.
Using high-efficient liquid phase chromatogram HPLC to sample 1#- 7 analyses, as a result as follows:
[Daicel Chiralpak IA (0.46cm x 25cm), n-hexane/isopropanol=70/30, v=1.0mL/ Min, λ=254nm, t (minor)=20.59min, t (major)=23.52min], ee=92%.
Using polarimeter to sample 1#- 7 analyses, it is as a result as follows: [α]D20=-8.6 (c=3.0, CHCl3).Sample 1#-8 ~sample 1#- 10 detection data and sample 1#- 7 is almost the same;When illustrating using chiral ligand, products therefrom is mainly product 1-1.And sample 1#- 1~sample 1#- 6 do not have optical activity substantially, and when illustrate using achiral ligand, products therefrom is product 1- 1 and 1-2 molar ratio is the mixture of 1:1, is racemic product.
The preparation of 2 product 2 of embodiment
Product 2: R in Formula II -1 and Formula II -21And R2Respectively benzyl, methyl sulphonyl (being abbreviated as MS);Formula II -1 is corresponding Product is denoted as product 2-1, and -1 corresponding product of Formula II is denoted as product 2-2.
The Chinese of product 2-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- benzyls Base -4- methyl sulphonyl)
The English name of product 2-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(N-benzylmethane sulfonamide)
The structural formula of product 2-1 and 2-2 are respectively as follows:
The preparation of sample 1#-1 in specific preparation process such as embodiment 1, the difference is that, the achirality and hand of use Property ligand is respectively (n=1, the R of compound shown in formula (3)12=phenyl) and formula (7) shown in compound (R17And R18It is phenyl); The connection enamine raw material of use are as follows: R in Formulas I1And R2The respectively connection enamine of benzyl and methyl sulphonyl;Using achiral ligand institute It obtains product and is denoted as sample 2#- 1, yield 70%;Sample 2 is denoted as using chiral ligand products therefrom#- 2, yield 60%.
Sample 2#- 1 and sample 2#- 2 fusing point (mp): 170~174 DEG C.
Using thin-layer chromatography to sample 2#- 1 and sample 2#- 2 analyses: Rf=0.5 (ethyl acetate/petroleum ether=1/5, v/ v)。
Using nuclear magnetic resonance to sample 2#- 1 and sample 2#- 2 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 7.32 (s, 10H), 5.41 (s, 2H), 4.89 (d, J= 18.7Hz, 4H), 4.58 (d, J=15.5Hz, 2H), 4.14 (d, J=15.2Hz, 2H), 2.83 (s, 6H).13C NMR (100MHz,CDCl3) chemical shift (ppm): 142.7,137.2,128.8,128.5,128.0,107.9,61.7,48.9, 40.5。
Using infrared spectroscopy to sample 2#- 1 and sample 2#- 2 detections (KBr), in following wave number (cm-1) there is diffraction in position Peak: 518,699,757,792,961,1027,1150,1333,1456,1496,1681,2927,3 030.32.
Using high resolution mass spectrum HRMS (ESI+) to sample 2#- 1 and sample 2#- 2 analyses, as a result as follows:
With [C22H26N2O4S2+H]+Meter, calculated value: 447.1408;Test data: 447.1407.
Using high-efficient liquid phase chromatogram HPLC to sample 2#- 2 analyses, as a result as follows:
[Daicel Chiralpak IA (0.46cm x 25cm), n-hexane/isopropanol=70/30, v=1.0mL/ Min, λ=254nm, t (major)=10.93min, t (minor)=13.01min], ee=92%.
Using polarimeter to sample 2#- 2 analyses, it is as a result as follows: [α]D20=-24.6 (c=1.0, CHCl3).Sample 2#-1 For the racemic mixture of product 2-1 and product 2-2;Sample 2#It is mainly product 2-1 in -2.
The preparation of 3 product 3 of embodiment
Product 3: R in Formula II -1 and Formula II -21And R2Respectively 4- methoxy-benzyl, Methyl benzenesulfonyl base (is abbreviated as TS);- 1 corresponding product of Formula II is denoted as product 3-1, and -1 corresponding product of Formula II is denoted as product 3-2.
The Chinese of product 3-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- (4- methoxy-benzyl) -4- is to Methyl benzenesulfonyl base)
The English name of product 3-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(N-(4- methoxybenzyl)-4-methylbenzenesulfonamide)
The structural formula of product 3-1 and product 3-2 are respectively as follows:
The preparation of sample 1#-1 in specific preparation process such as embodiment 1, the difference is that, the achirality and hand of use Property ligand is respectively (n=1, the R of compound shown in formula (3)12=phenyl) and formula (7) shown in compound (R17And R18It is phenyl); The connection enamine raw material of use are as follows: R in Formulas I1And R2The respectively connection enamine of benzyl and methyl sulphonyl;Using achiral ligand institute It obtains product and is denoted as sample 3#- 1, yield 76%;Sample 3 is denoted as using chiral ligand products therefrom#- 2, yield 79%.
Sample 3#- 1 and sample 3#- 2 fusing point (mp): 141~144 DEG C.
Using thin-layer chromatography to sample 3#- 1 and sample 3#- 2 analyses: Rf=0.3 (ethyl acetate/petroleum ether=1/5, v/v)
Using nuclear magnetic resonance to sample 3#- 1 and sample 3#- 2 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 7.58 (d, J=8.2Hz, 4H), 7.27 (d, J=8.0Hz, 4H), 7.19 (d, J=8.5Hz, 4H), 6.82 (d, J=8.6Hz, 4H), 5.16 (s, 2H), 4.78 (s, 2H), 4.54 (d, J= 15.2Hz, 2H), 4.06 (s, 2H), 3.92 (d, J=15.2Hz, 2H), 3.79 (s, 6H), 2.43 (s, 6H).13C NMR (100MHz,CDCl3) chemical shift (ppm): 159.2,143.4,142.4,137.3,130.1,129.7,128.9,127.3, 113.9,107.9,62.2,55.3,48.1,21.5。
Using infrared spectroscopy to sample 3#- 1 and sample 3#- 2 detections (KBr), in following wave number (cm-1) there is diffraction in position Peak: 535,663,751,814,881,915,1092,1164,1267,1315,1376,1455,15 11,1612,2926.
Using high resolution mass spectrum HRMS (ESI+) to sample 3#- 1 and sample 3#- 2 analyses, as a result as follows:
With [C36H38N2O6S2+H]+Meter, calculated value: 659.2248;Test data: 659.2244.
Using high-efficient liquid phase chromatogram HPLC to sample 3#- 2 analyses, as a result as follows:
[Daicel Chiralpak IB (0.46cm x 25cm), n-hexane/isopropanol=90/10, v=1.0mL/ Min, λ=254nm, t (minor)=24.85min, t (major)=35.41min], ee=99%.
Using polarimeter to sample 3#- 2 analyses, it is as a result as follows: [α]D20=-19.8 (c=3.4, CHCl3).Sample 3#-1 For the racemic mixture of product 3-1 and product 3-2;Sample 3#It is mainly product 3-1 in -2.
The preparation of 4 product 4 of embodiment
Product 4: R in Formula II -1 and Formula II -21And R2Respectively 1,3- benzo dioxy -5- methyl, to Methyl benzenesulfonyl base (being abbreviated as TS);- 1 corresponding product of Formula II is denoted as product 4-1, and -1 corresponding product of Formula II is denoted as product 4-2.
The Chinese of product 4-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- (1,3- benzo dioxy -5- methyl) -4- is to Methyl benzenesulfonyl base)
The English name of product 4-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(N-(benzo[d][1, 3]dioxol-5-ylmethyl)-4-methylbenzenesulfonamide)
The structural formula of product 4-1 and product 4-2 are respectively as follows:
The preparation of sample 1#-1 in specific preparation process such as embodiment 1, the difference is that, the achirality and hand of use Property ligand is respectively (n=1, the R of compound shown in formula (3)12=phenyl) and formula (7) shown in compound (R17And R18It is phenyl); The connection enamine raw material of use are as follows: R in Formulas I1And R2The respectively connection enamine of benzyl and methyl sulphonyl;Using achiral ligand institute It obtains product and is denoted as sample 4#- 1, yield 86%;Sample 4 is denoted as using chiral ligand products therefrom#- 2, yield 95%.
Sample 4#- 1 and sample 4#- 2 fusing point (mp): 68~71 DEG C.
Using thin-layer chromatography to sample 4#- 1 and sample 4#- 2 analyses: Rf=0.3 (ethyl acetate/petroleum ether=1/5, v/ v)。
Using nuclear magnetic resonance to sample 4#- 1 and sample 4#- 2 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 7.61 (d, J=8.2Hz, 4H), 7.29 (d, J=8.0Hz, 4H), 6.83 (s, 2H), 6.70-6.65 (m, 4H), 5.93 (s, 4H), 5.20 (s, 2H), 4.83 (s, 2H), 4.52 (d, J= 15.2Hz, 2H), 4.11 (s, 2H), 3.92 (d, J=15.3Hz, 2H), 2.43 (s, 6H).13C NMR(100MHz,CDCl3) change Displacement study (ppm): 148.0,147.3,143.5,142.2,137.3,130.7,129.7,127.3,121.9,10 9.3, 108.0,101.1,62.1,48.4,21.6。
Using infrared spectroscopy to sample 4#- 1 and sample 4#- 2 detections (KBr), in following wave number (cm-1) there is diffraction in position Peak: 547,661,811,928,1038,1090,1161,1243,1334,1446,1489,1503,1597,2922.
Using high resolution mass spectrum HRMS (ESI+) to sample 4#- 1 and sample 4#- 2 analyses, as a result as follows:
With [C36H34N2O8S2+H]+Meter, calculated value: 687.1830;Test data: 687.1829.
Using high-efficient liquid phase chromatogram HPLC to sample 4#- 2 analyses, as a result as follows:
[Daicel Chiralpak IA (0.46cm x 25cm), n-hexane/isopropanol=70/30, v=1.0mL/ Min, λ=254nm, t (minor)=37.03min, t (major)=47.42min], ee=90%
Using polarimeter to sample 4#- 2 analyses, it is as a result as follows: [α]D20=-21.7 (c=4.5, CHCl3).Sample 4#-1 For the racemic mixture of product 4-1 and product 4-2;Sample 4#It is mainly product 4-1 in -2.
The preparation of 5 product 5 of embodiment
Product 5: R in Formula II -1 and Formula II -21And R2Respectively 1- menaphthyl, to Methyl benzenesulfonyl base (being abbreviated as TS);Formula II-1 corresponding product is denoted as product 5-1, and -1 corresponding product of Formula II is denoted as product 5-2.
The Chinese of product 5-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- (1- menaphthyl) -4- is to Methyl benzenesulfonyl base)
The English name of product 5-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(4-methyl-N- (naphthalen-1-ylmethyl)benzenesulfonamide)
The structural formula of product 5-1 and product 5-2 are respectively as follows:
The preparation of sample 1#-1 in specific preparation process such as embodiment 1, the difference is that, the achirality and hand of use Property ligand is respectively (n=1, the R of compound shown in formula (3)12=phenyl) and formula (7) shown in compound (R17And R18It is phenyl); The connection enamine raw material of use are as follows: R in Formulas I1And R2The respectively connection enamine of benzyl and methyl sulphonyl;Using achiral ligand institute It obtains product and is denoted as sample 5#- 1, yield 71%;Sample 5 is denoted as using chiral ligand products therefrom#- 2, yield 84%.
Sample 5#- 1 and sample 5#- 2 fusing point (mp): 130~134 DEG C.
Using thin-layer chromatography to sample 5#- 1 and sample 5#- 2 analyses: Rf=0.3 (ethyl acetate/petroleum ether=1/5, v/ v)。
Using nuclear magnetic resonance to sample 5#- 1 and sample 5#- 2 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 8.17 (d, J=8.1Hz, 2H), 7.84 (d, J=7.5Hz, 2H), 7.78 (d, J=8.0Hz, 2H), 7.52-7.45 (m, 4H), 7.38-7.25 (m, 8H), 7.17 (d, J=8.0Hz, 4H), 5.11 (t, J=9.2Hz, 4H), 4.57 (s, 2H), 4.36 (d, J=15.4Hz, 2H), 3.77 (s, 2H), 2.39 (s, 6H).13C NMR(100MHz,CDCl3) chemical shift (ppm): 143.4,142.3,136.7,133.7,131.5,131.5,129.6, 128.6,128.5,127.8,127.3,126.4,125.8,125.4,123.6,107.9,62.6,46.7,21.5。
Using infrared spectroscopy to sample 5#- 1 and sample 5#- 2 detections (KBr), in following wave number (cm-1) there is diffraction in position Peak: 547,666,791,889,1037,1091,1161,1337,1510,1597,2922,3296.
Using high resolution mass spectrum HRMS (ESI+) to sample 5#- 1 and sample 5#- 2 analyses, as a result as follows:
With [C42H38N2O4S2+H]+Meter, calculated value: 699.2350;Test data: 699.2346.
Using high-efficient liquid phase chromatogram HPLC to sample 5#- 2 analyses, as a result as follows:
[Daicel Chiralpak IA (0.46cm x 25cm), n-hexane/isopropanol=70/30, v=1.0mL/ Min, λ=254nm, t (major)=19.07min, t (minor)=32.05min], ee=78%
Using polarimeter to sample 5#- 2 analyses, it is as a result as follows: [α]D20=-28.2 (c=3.7, CHCl3).Sample 5#-1 For the racemic mixture of product 5-1 and product 5-2;Sample 5#It is mainly product 5-1 in -2.
The preparation of 6 product 6 of embodiment
Product 6: R in Formula II -1 and Formula II -21And R2Respectively phenethyl, to Methyl benzenesulfonyl base (being abbreviated as TS);Formula II-1 corresponding product is denoted as product 6-1, and -1 corresponding product of Formula II is denoted as product 6-2.
The Chinese of product 6-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- benzene Ethyl -4- is to Methyl benzenesulfonyl base)
The English name of product 6-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(4-methyl-N- phenethylbenzenesulfonamide)
The structural formula of product 6-1 and product 6-2 are respectively as follows:
The preparation of sample 1#-1 in specific preparation process such as embodiment 1, the difference is that, the achirality and hand of use Property ligand is respectively (n=1, the R of compound shown in formula (3)12=phenyl) and formula (7) shown in compound (R17And R18It is phenyl); The connection enamine raw material of use are as follows: R in Formulas I1And R2The respectively connection enamine of benzyl and methyl sulphonyl;Using achiral ligand institute It obtains product and is denoted as sample 6#- 1, yield 89%;Sample 6 is denoted as using chiral ligand products therefrom#- 2, yield 58%.
Sample 6#- 1 and sample 6#- 2 fusing point (mp): 137~141 DEG C.
Using thin-layer chromatography to sample 6#- 1 and sample 6#- 2 analyses: Rf=0.3 (ethyl acetate/petroleum ether=1/5, v/ v)。
Using nuclear magnetic resonance to sample 6#- 1 and sample 6#- 2 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 7.84 (d, J=8.2Hz, 4H), 7.33 (t, J=7.5Hz, 8H), 7.26 (dd, J=13.2,8.8Hz, 6H), 5.21 (s, 2H), 5.13 (s, 2H), 4.32 (s, 2H), 3.49-3.41 (m, 2H),3.16-3.05(m,4H),3.01-2.92(m,2H),2.40(s,6H)。13C NMR(100MHz,CDCl3) chemical shift (ppm): 143.9,142.7,138.7,137.0,129.9,128.8,128.6,127.4,126.6,10 8.1,61.7,46.4, 37.6,21.5。
Using infrared spectroscopy to sample 6#- 1 and sample 6#- 2 detections (KBr), in following wave number (cm-1) there is diffraction in position Peak:
502,574,668,750,838,910,987,1040,1236,1309,1454,1597,2924,3029。
Using high resolution mass spectrum HRMS (ESI+) to sample 6#- 1 and sample 6#- 2 analyses, as a result as follows:
With [C36H38N2O4S2+H]+Meter, calculated value: 627.2346;Test data: 627.2346.
Using high-efficient liquid phase chromatogram HPLC to sample 6#- 2 analyses, as a result as follows:
[Daicel Chiralpak IA (0.46cm x 25cm), n-hexane/isopropanol=95/5, v=1.0mL/min, λ=254nm, t (major)=28.70min, t (minor)=40.80min], ee=99%.
Using polarimeter to sample 6#- 2 analyses, it is as a result as follows: [α]D20=-139.9 (c=0.7, CHCl3).Sample 6#- 1 is the racemic mixture of product 6-1 and product 6-2;Sample 6#It is mainly product 6-1 in -2.
The preparation of 7 product 7 of embodiment
Product 7: R in Formula II -1 and Formula II -21And R2Respectively 3,3- diphenyl propyl, Methyl benzenesulfonyl base (is abbreviated as TS);- 1 corresponding product of Formula II is denoted as product 7-1, and -1 corresponding product of Formula II is denoted as product 7-2.
The Chinese of product 7-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- (3,3- diphenyl propyl) -4- is to Methyl benzenesulfonyl base)
The English name of product 7-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(N-(3,3- diphenylpropyl)-4-methylbenzenesulfonamide)
The structural formula of product 7-1 and product 7-2 are respectively as follows:
The preparation of sample 1#-1 in specific preparation process such as embodiment 1, the difference is that, the achirality and hand of use Property ligand is respectively (n=1, the R of compound shown in formula (3)12=phenyl) and formula (7) shown in compound (R17And R18It is phenyl); The connection enamine raw material of use are as follows: R in Formulas I1And R2The respectively connection enamine of benzyl and methyl sulphonyl;Using achiral ligand institute It obtains product and is denoted as sample 7#- 1, yield 63%;Sample 7 is denoted as using chiral ligand products therefrom#- 2, yield 71%.
Sample 7#- 1 and sample 7#- 2 fusing point (mp): 169~170 DEG C.
Using thin-layer chromatography to sample 7#- 1 and sample 7#- 2 analyses: Rf=0.3 (ethyl acetate/petroleum ether=1/5, v/ v)。
Using nuclear magnetic resonance to sample 7#- 1 and sample 7#- 2 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 7.60 (d, J=8.1Hz, 4H), 7.28-7.17 (m, 24H), 5.07 (s, H), 4.87 (s, 2H), 4.21 (s, 2H), 3.80 (t, J=8.0Hz, 2H), 3.15-3.07 (m, 2H), 2.85-2.77(m,2H),2.57-2.43(m,4H),2.36(s,6H)。13C NMR(100MHz,CDCl3) chemical shift (ppm): 144.0,143.9,143.5,142.6,136.8,129.8,128.6,127.9,127.8,127.3,126.3,107.9,61.7, 49.3,43.7,36.3,21.5。
Using infrared spectroscopy to sample 7#- 1 and sample 7#- 2 detections (KBr), in following wave number (cm-1) there is diffraction in position Peak: 546,585,664,764,814,909,1061,1092,1161,1208,1345,1451,14 93,1598,2925,3026.
Using high resolution mass spectrum HRMS (ESI+) to sample 7#- 1 and sample 7#- 2 analyses, as a result as follows:
With [C50H50N2O4S2+H]+Meter, calculated value: 807.3292;Test data: 807.3285.
Using high-efficient liquid phase chromatogram HPLC to sample 7#- 2 analyses, as a result as follows:
[Daicel Chiralpak IA (0.46cm x 25cm), n-hexane/isopropanol=70/30, v=1.0mL/ Min, λ=254nm, t (minor)=11.65min, t (major)=14.71min], ee=97%.
Using polarimeter to sample 7#- 2 analyses, it is as a result as follows: [α]D20=-17.7 (c=5.6, CHCl3).Sample 7#-1 For the racemic mixture of product 7-1 and product 7-2;Sample 7#It is mainly product 7-1 in -2.
The preparation of 8 product 8 of embodiment
Product 8: R in Formula II -1 and Formula II -21And R2Respectively 3- indolylethyl, to Methyl benzenesulfonyl base (being abbreviated as TS); - 1 corresponding product of Formula II is denoted as product 8-1, and -1 corresponding product of Formula II is denoted as product 8-2.
The Chinese of product 8-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- (3- indolylethyl) -4- is to Methyl benzenesulfonyl base)
The English name of product 8-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(N-(2-(1H-indol- 3-yl)ethyl)-4-methylbenzenesulfonamide)
The structural formula of product 8-1 and product 8-2 are respectively as follows:
The preparation of sample 1#-1 in specific preparation process such as embodiment 1, the difference is that, the achirality and hand of use Property ligand is respectively (n=1, the R of compound shown in formula (3)12=phenyl) and formula (7) shown in compound (R17And R18It is phenyl); The connection enamine raw material of use are as follows: R in Formulas I1And R2The respectively connection enamine of benzyl and methyl sulphonyl;Using achiral ligand institute It obtains product and is denoted as sample 8#- 1, yield 88%;Sample 8 is denoted as using chiral ligand products therefrom#- 2, yield 86%.
Sample 8#- 1 and sample 8#- 2 fusing point (mp): 185~188 DEG C.
Using thin-layer chromatography to sample 8#- 1 and sample 8#- 2 analyses: Rf=0.3 (ethyl acetate/petroleum ether=1/5, v/ v)。
Using nuclear magnetic resonance to sample 8#- 1 and sample 8#- 2 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 8.06 (s, 2H), 7.85 (d, J=8.2Hz, 4H), 7.72 (d, J=7.7Hz, 2H), 7.36 (d, J=7.9Hz, 2H), 7.29 (d, J=8.1Hz, 4H), 7.21-7.13 (m, 4H), 7.05 (s,2H),5.20(s,4H),4.30(s,2H),3.62-3.54(m,2H),3.29-3.11(m,6H),2.37(s,6H)。13C NMR(100MHz,CDCl3) chemical shift (ppm): 143.8,142.9,137.2,136.3,129.9,127.4,127.3, 122.2,122.1,119.5,119.0,112.9,111.2,108.1,62.1,45.8,27.4,21.5。
Using infrared spectroscopy to sample 8#- 1 and sample 8#- 2 detections (KBr), in following wave number (cm-1) there is diffraction in position Peak: 424,546,661,751,815,906,988,1012,1088,1159,1205,1257,133 7,1457,1596,2852, 3402。
Using high resolution mass spectrum HRMS (ESI+) to sample 8#- 1 and sample 8#- 2 analyses, as a result as follows:
With [C40H40N4O4S2+H]+Meter, calculated value: 705.2564;Test data: 705.2566.
Using high-efficient liquid phase chromatogram HPLC to sample 8#- 2 analyses, as a result as follows:
[Daicel Chiralpak IA (0.46cm x 25cm), n-hexane/isopropanol=70/30, v=1.0mL/ Min, λ=254nm, t (major)=12.70min, t (minor)=22.11min], ee=74%
Using polarimeter to sample 8#- 2 analyses, it is as a result as follows: [α]D20=-88.1 (c=1.0, CHCl3).Sample 8#-1 For the racemic mixture of product 8-1 and product 8-2;Sample 8#It is mainly product 8-1 in -2.
The preparation of 9 product 9 of embodiment
Product 9: R in Formula II -1 and Formula II -21And R2Respectively 2- thienylethyl, to Methyl benzenesulfonyl base (being abbreviated as TS); - 1 corresponding product of Formula II is denoted as product 9-1, and -1 corresponding product of Formula II is denoted as product 9-2.
The Chinese of product 9-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- (2- thienylethyl) -4- is to Methyl benzenesulfonyl base)
The English name of product 9-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(4-methyl-N-(2- (thiophen-2-yl)ethyl)benzenesulfonamide)
The structural formula of product 9-1 and product 9-2 are respectively as follows:
The preparation of sample 1#-1 in specific preparation process such as embodiment 1, the difference is that, the achirality and hand of use Property ligand is respectively (n=1, the R of compound shown in formula (3)12=phenyl) and formula (7) shown in compound (R17And R18It is phenyl); The connection enamine raw material of use are as follows: R in Formulas I1And R2The respectively connection enamine of benzyl and methyl sulphonyl;Using achiral ligand institute It obtains product and is denoted as sample 9#- 1, yield 65%;Sample 9 is denoted as using chiral ligand products therefrom#- 2, yield 67%.
Sample 9#- 1 and sample 9#- 2 fusing point (mp): 191~195 DEG C.
Using thin-layer chromatography to sample 9#- 1 and sample 9#- 2 analyses: Rf=0.3 (ethyl acetate/petroleum ether=1/5, v/ v)。
Using nuclear magnetic resonance to sample 9#- 1 and sample 9#- 2 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 7.82 (d, J=8.4Hz, 4H), 7.34 (d, J=8.4Hz, 4H), 7.16 (d, J=4.3Hz, 2H), 6.96 (dd, J=5.2,3.6Hz, 2H), 6.88 (d, J=2.8Hz, 2H), 5.20 (s, 2H),5.01(s,2H),4.27(s,2H),3.56-3.48(m,2H),3.35-3.27(m,2H),3.20-3.10(m,4H), 2.42(s,6H)。13C NMR(100MHz,CDCl3) chemical shift (ppm): 143.9,142.5,140.7,136.8,130.0, 127.4,127.0,125.4,123.8,108.2,61.8,46.3,31.6,21.6。
Using infrared spectroscopy to sample 9#- 1 and sample 9#- 2 detections (KBr), in following wave number (cm-1) there is diffraction in position Peak: 499,545,585,666,700,766,851,894,987,1053,1108,1229,1308,1344,1489,1596, 2937。
Using high resolution mass spectrum HRMS (ESI+) to sample 9#- 1 and sample 9#- 2 analyses, as a result as follows:
With [C32H34N2O4S4+H]+Meter, calculated value: 639.1477;Test data: 639.1474.
Using high-efficient liquid phase chromatogram HPLC to sample 9#- 2 analyses, as a result as follows:
[Daicel Chiralpak IA (0.46cm x 25cm), n-hexane/isopropanol=99/1, v=1.0mL/min, λ=254nm, t (major)=39.80min, t (minor)=47.92min], ee=99%
Using polarimeter to sample 9#- 2 analyses, it is as a result as follows: [α]D20=-29.3 (c=3.0, CHCl3).Sample 9#-1 For the racemic mixture of product 9-1 and product 9-2;Sample 9#It is mainly product 9-1 in -2.
The preparation of 10 product 10 of embodiment
Product 10: R in Formula II -1 and Formula II -21And R2Respectively 2- furfuryl, Methyl benzenesulfonyl base (is abbreviated as TS);- 1 corresponding product of Formula II is denoted as product 10-1, and -1 corresponding product of Formula II is denoted as product 10-2.
The Chinese of product 10-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- (2- furfuryl) -4- is to Methyl benzenesulfonyl base)
The English name of product 10-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(4-methyl-N- ((tetrahydrofuran-2-yl)methyl)benzenesulfonamide)
The structural formula of product 10-1 and product 10-2 are respectively as follows:
The preparation of sample 1#-1 in specific preparation process such as embodiment 1, the difference is that, the achirality and hand of use Property ligand is respectively (n=1, the R of compound shown in formula (3)12=phenyl) and formula (7) shown in compound (R17And R18It is phenyl); The connection enamine raw material of use are as follows: R in Formulas I1And R2The respectively connection enamine of benzyl and methyl sulphonyl;Using achiral ligand institute It obtains product and is denoted as sample 10#- 1, yield 71%;Sample 10 is denoted as using chiral ligand products therefrom#- 2, yield 79%.
Sample 10#- 1 and sample 10#- 2 fusing point (mp): 72~75 DEG C.
Using thin-layer chromatography to sample 10#- 1 and sample 10#- 2 analyses: Rf=0.3 (ethyl acetate/petroleum ether=1/5, v/ v)。
Using nuclear magnetic resonance to sample 10#- 1 and sample 10#- 2 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 7.87-7.75 (m, 4H), 7.31 (d, J=7.3Hz, 4H), 5.47-5.19(m,4H),4.67(s,1H),4.24(s,1H),4.13-4.01(m,2H),3.90-3.80(m,2H),3.74- 3.64(m,2H),3.47-3.35(m,2H),3.30-3.22(m,2H),2.42(s,6H),2.01-1.78(m,6H),1.76- 1.70(m,1H),1.61-1.44(m,1H)。
13C NMR(100MHz,CDCl3) chemical shift (ppm): 144.3,143.6,143.3,143.2,143.1, 142.6,137.5,137.3,137.2,129.8,129.7,129.6,127.6,127.4,127.3,107.5,107.4,78.8, 78.7,77.9,67.9,67.8,62.5,62.4,61.4,49.3,49.0,29.5,29.1,25.4,25.3,21.5。
Using infrared spectroscopy to sample 10#- 1 and sample 10#- 2 detections (KBr), in following wave number (cm-1) there is diffraction in position Peak: 547,660,706 766,815,1032,1089,1163,1346,1447,1494,1598,2871,2924.
Using high resolution mass spectrum HRMS (ESI+) to sample 10#- 1 and sample 10#- 2 analyses, as a result as follows: with [C30H38N2O6S2+H]+Meter, calculated value: 587.2245;Test data: 587.2244.
Using high-efficient liquid phase chromatogram HPLC to sample 10#- 2 analyses, as a result as follows:
[Daicel Chiralpak IF (0.46cm x 25cm), n-hexane/isopropanol=90/10, v=1.0mL/ Min, λ=254nm, t (major)=59.68min, t (minor)=72.86min], ee=90%
Using polarimeter to sample 10#- 2 analyses, it is as a result as follows: [α]D20=-14.4 (c=3.0, CHCl3).Sample 10#- 1 is the racemic mixture of product 10-1 and product 10-2;Sample 10#It is mainly product 10-1 in -2.
The preparation of 11 product 11 of embodiment
Product 11: R in Formula II -1 and Formula II -21And R2Respectively normal-butyl, to Methyl benzenesulfonyl base (being abbreviated as TS);Formula II-1 corresponding product is denoted as product 11-1, and -1 corresponding product of Formula II is denoted as product 11-2.
The Chinese of product 11-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- Butyl -4- is to Methyl benzenesulfonyl base)
The English name of product 11-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(N-butyl-4- methyl benzenesulfonamide)
The structural formula of product 11-1 and product 11-2 are respectively as follows:
The preparation of sample 1#-1 in specific preparation process such as embodiment 1, the difference is that, the achirality and hand of use Property ligand is respectively (n=1, the R of compound shown in formula (3)12=phenyl) and formula (7) shown in compound (R17And R18It is phenyl); The connection enamine raw material of use are as follows: R in Formulas I1And R2The respectively connection enamine of benzyl and methyl sulphonyl;Using achiral ligand institute It obtains product and is denoted as sample 11#- 1, yield 66%;Sample 11 is denoted as using chiral ligand products therefrom#- 2, yield 67%.
Sample 11#- 1 and sample 11#- 2 fusing point (mp): 108~112 DEG C.
Using thin-layer chromatography to sample 11#- 1 and sample 11#- 2 analyses: Rf=0.3 (ethyl acetate/petroleum ether=1/5, v/ v)。
Using nuclear magnetic resonance to sample 11#- 1 and sample 11#- 2 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 7.78 (d, J=8.0Hz, 4H), 7.33 (d, J=8.0Hz, 4H),5.25(s,2H),5.01(s,2H),4.43(s,2H),3.25-3.17(m,2H),2.99-2.91(m,2H),2.43(s, 6H), 1.70-1.49 (m, 4H), 1.29-1.20 (m, 4H), 0.88 (t, J=7.3Hz, 6H).
13C NMR(100MHz,CDCl3) chemical shift (ppm): 143.5,143.1,137.3,129.8,127.4, 107.8,61.6,44.8,32.9,21.5,20.2,13.6。
Using infrared spectroscopy to sample 11#- 1 and sample 11#- 2 detections (KBr), in following wave number (cm-1) there is diffraction in position Peak: 544,568,664,731,765,813,898,999,1029,1090,1139,1165,1221,1250,1345,2954.
Using high resolution mass spectrum HRMS (ESI+) to sample 11#- 1 and sample 11#- 2 analyses, as a result as follows: with [C28H38N2O4S2+H]+Meter, calculated value: 531.2343;Test data: 531.2346.
Using high-efficient liquid phase chromatogram HPLC to sample 11#- 2 analyses, as a result as follows:
[Daicel Chiralpak IA (0.46cm x 25cm), n-hexane/isopropanol=90/10, v=1.0mL/ Min, λ=254nm, t (minor)=19.29min, t (major)=26.54min], ee=82%
Using polarimeter to sample 11#- 2 analyses, it is as a result as follows: [α]D20=-21.5 (c=4.2, CHCl3).Sample 11#- 1 is the racemic mixture of product 11-1 and product 11-2;Sample 11#It is mainly product 11-1 in -2.
The preparation of 12 product 12 of embodiment
Product 12: R in Formula II -1 and Formula II -21And R2Respectively tert-butyl dimethyl silica ethyl (tert-butyl two therein Methyl siloxy is abbreviated as OTBS), to Methyl benzenesulfonyl base (being abbreviated as TS);- 1 corresponding product of Formula II is denoted as product 12-1, formula II-1 corresponding product is denoted as product 12-2.
The Chinese of product 12-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- Tert-butyl dimethyl silica ethyl -4- is to Methyl benzenesulfonyl base)
The English name of product 12-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(N-(2-((tert- butyldimethylsilyl)oxy)ethyl)-4-methylbenzenesulfonamide)
The structural formula of product 12-1 and product 12-2 are respectively as follows:
The preparation of sample 1#-1 in specific preparation process such as embodiment 1, the difference is that, the achirality and hand of use Property ligand is respectively (n=1, the R of compound shown in formula (3)12=phenyl) and formula (7) shown in compound (R17And R18It is phenyl); The connection enamine raw material of use are as follows: R in Formulas I1And R2The respectively connection enamine of benzyl and methyl sulphonyl;Using achiral ligand institute It obtains product and is denoted as sample 12#- 1, yield 84%;Sample 12 is denoted as using chiral ligand products therefrom#- 2, yield 93%.
Sample 12#- 1 and sample 12#- 2 fusing point (mp): 126~128 DEG C.
Using thin-layer chromatography to sample 12#- 1 and sample 12#- 2 analyses: Rf=0.3 (ethyl acetate/petroleum ether=1/5, v/ v)。
Using nuclear magnetic resonance to sample 12#- 1 and sample 12#- 2 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 7.69 (d, J=8.0Hz, 4H), 7.25 (d, J=8.0Hz, 4H),5.12(s,2H),4.89(s,2H),4.11(s,2H),3.82-3.70(m,4H),3.25-3.17(m,2H),2.99- 2.92(m,2H),2.35(s,6H),0.81(s,18H),-0.00(s,12H)。13C NMR(100MHz,CDCl3) chemical shift (ppm): 143.7,142.6,136.9,129.8,127.3,108.0,62.7,62.2,46.0,25.9,21.5,18.3, -5.3.
Using infrared spectroscopy to sample 12#- 1 and sample 12#- 2 detections (KBr), in following wave number (cm-1) there is diffraction in position Peak: 548,664,777,837,1089,1163,1255,1345,1471,1597,2929.
Using high resolution mass spectrum HRMS (ESI+) to sample 12#- 1 and sample 12#- 2 analyses, as a result as follows: with [C36H58N2O6S2Si2+H]+Meter, calculated value: 735.3351;Test data: 735.3348.
Using high-efficient liquid phase chromatogram HPLC to sample 12#- 2 analyses, as a result as follows:
[Daicel Chiralpak IA (0.46cm x 25cm), n-hexane/isopropanol=99/1, v=1.0mL/min, λ=254nm, t (minor)=23.67min, t (major)=33.71min], ee=96%
Using polarimeter to sample 12#- 2 analyses, it is as a result as follows: [α]D20=-9.3 (c=7.8, CHCl3).Sample 12#- 1 is the racemic mixture of product 12-1 and product 12-2;Sample 12#It is mainly product 12-1 in -2.
The preparation of 13 product 13 of embodiment
Product 13: R in Formula II -1 and Formula II -21And R2Respectively 9- octadecylene base, Methyl benzenesulfonyl base (is abbreviated as TS);- 1 corresponding product of Formula II is denoted as product 13-1, and -1 corresponding product of Formula II is denoted as product 13-2.
The Chinese of product 13-1 are as follows: N, N'- ((1S, 2S) -3,4- dimethylene cyclobutane -1,2- substitution) two (N- (9- octadecylene base) -4- is to Methyl benzenesulfonyl base)
The English name of product 13-1 are as follows:
N,N'-((1S,2S)-3,4-dimethylenecyclobutane-1,2-diyl)bis(4-methyl-N- ((Z)-octadec-9-en-1-yl)benzenesulfonamide)
The structural formula of product 13-1 and product 13-2 are respectively as follows:
The preparation of sample 1#-1 in specific preparation process such as embodiment 1, the difference is that, the achirality and hand of use Property ligand is respectively (n=1, the R of compound shown in formula (3)12=phenyl) and formula (7) shown in compound (R17And R18It is phenyl); The connection enamine raw material of use are as follows: R in Formulas I1And R2The respectively connection enamine of benzyl and methyl sulphonyl;Using achiral ligand institute It obtains product and is denoted as sample 13#- 1, yield 76%;Sample 13 is denoted as using chiral ligand products therefrom#- 2, colorless oil, yield is 50%.
Using thin-layer chromatography to sample 13#- 1 and sample 13#- 2 analyses: Rf=0.3 (ethyl acetate/petroleum ether=1/5, v/ v)。
Using nuclear magnetic resonance to sample 13#- 1 and sample 13#- 2 detections, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 7.70 (d, J=8.0Hz, 4H), 7.25 (d, J=7.6Hz, 4H), 5.31 (d, J=14.6Hz, 4H), 5.18 (s, 2H), 4.94 (s, 2H), 4.36 (s, 2H), 3.16-3.09 (m, 2H), 2.91-2.83(m,2H),2.35(s,6H),1.94-1.89(m,8H),1.64-1.46(m,4H),1.18(s,44H),0.80 (d, J=6.8Hz, 6H).13C NMR(100MHz,CDCl3) chemical shift (ppm): 143.5,143.2,137.3,129.9, 129.8,129.7,127.6,107.8,61.6,45.1,32.6,31.9,30.9,29.8,29.7,29.5,29.3,29.2, 29.1,27.2,27.0,22.7,21.5,17.1。
Using infrared spectroscopy to sample 13#- 1 and sample 13#- 2 detections (KBr), in following wave number (cm-1) there is diffraction in position Peak: 546,565,661,722,813,895,1090,1160,1346,1465,1598,2854,29 25.
Using high resolution mass spectrum HRMS (ESI+) to sample 13#- 1 and sample 13#- 2 analyses, as a result as follows: with [C56H90N2O4S2+H]+Meter, calculated value: 919.6415;Test data: 919.6421.
Using high-efficient liquid phase chromatogram HPLC to sample 13#- 2 analyses, as a result as follows:
[Daicel Chiralpak ID (0.46cm x 25cm), n-hexane/isopropanol=99/1, v=1.0mL/min, λ=254nm, t (major)=43.84min, t (minor)=65.22min], ee=84%
Using polarimeter to sample 13#- 2 analyses, it is as a result as follows: [α]D20=-13.7 (c=5.2, CHCl3).Sample 13#- 1 is the racemic mixture of product 13-1 and product 13-2;Sample 13#It is mainly product 13-1 in -2.
Embodiment 14
The cycloaddition reaction of gained 1,2- dimethylene cyclobutane chipal compounds and dimethyl maleate:
Sample 1 is sequentially added in a dry reaction tube#- 7 (120mg, 0.2mmol), dimethyl maleate (170.5mg, 1.2mmol) and toluene (20mL) is reacted 7 hours at 110 DEG C, is quenched with water, then with water (50mL) and dichloro Methane (50mL) extraction, stratification, organic phase are collected, and (3 × 50mL) is extracted with dichloromethane in water phase.Merge organic layer, does It is dry, concentration, column chromatographic purifying (silica gel petrol ether/ethyl acetate: 2/1) to get arrive product (145.2mg, with sample 1#- 1 rubs 98%) that number meter, the yield of product are.
Product is detected using nuclear magnetic resonance, as a result as follows:
1H NMR(400MHz,CDCl3) chemical shift (ppm): 7.63 (d, J=8.0Hz, 4H), 7.31 (d, J=8.0Hz, 4H), 7.25 (t, J=3.0Hz, 6H), 7.16 (t, J=2.6Hz, 4H), 5.18 (s, 2H), 4.24 (s, 4H), 3.71 (s, 6H), 2.91(s,4H),2.47(s,6H)。13C NMR(100MHz,CDCl3) chemical shift (ppm): 167.1,143.9,137.5, 135.0,134.8,131.8,129.7,128.6,128.5,128.0,127.4,121.5,54.6,52.2,28.9,21.6。
Using infrared spectroscopy to sample 14#It detects (KBr), in following wave number (cm-1) there is a diffraction maximum in position: 549,643, 738,777,952,1091,1162,1307,1345,1453,1598,1650,1733,2919,2950,3034,3060。
Using high resolution mass spectrum HRMS (ESI+) to sample 14#Analysis, as a result as follows:
With [C40H40N2O8S2+H]+Meter, calculated value: 741.2299;Test data: 741.2300.
The above is only several embodiments of the application, not does any type of limitation to the application, although this Shen Please disclosed as above with preferred embodiment, however not to limit the application, any person skilled in the art is not taking off In the range of technical scheme, a little variation or modification are made using the technology contents of the disclosure above and is equal to Case study on implementation is imitated, is belonged in technical proposal scope.

Claims (9)

1. a kind of method for synthesizing 1,2- dimethylene cyclobutane chipal compounds, which is characterized in that in the presence of rhodium complex Under, 1,2- dimethylene cyclobutane chipal compounds are synthesized by connection enamine compound;
The rhodium complex is formed by the rhodium source containing rhodium element with ligand;The ligand is that chiral ligand and/or achirality are matched Body;The chiral ligand and achiral ligand are selected from least one in the organic compound containing P elements and/or nitrogen Kind;
The enamine compound is selected from least one of the compound with chemical structural formula shown in Formulas I:
The 1,2- dimethylene cyclobutane chipal compounds be with the chemical structural formula as shown in Formula II -1 compound and/or Compound with the chemical structural formula as shown in Formula II -2:
In Formulas I, Formula II -1 and Formula II -2, R1、R2It is no more than 18 aliphatic group, with formula independently selected from hydrogen, carbon atom number The group of structural formula shown in III, the group with structural formula shown in Formula V, has Formula IV at the group with structural formula shown in Formula IV The group of shown structural formula or group with structural formula shown in Formula VII:
In formula III, R3The substituted fatty hydrocarbon base of aliphatic group, carbon atom number no more than 18, virtue selected from carbon atom number no more than 18 Base, heteroaryl, substituted heteroaryl, aralkyl, substituted aralkyl, heteroarylalkyl, replaces heteroarylalkyl at substituted aryl;
R4- A- formula IV
In formula IV, A is selected from the alkylene that carbon atom number is no more than 10;R4Aliphatic group, carbon selected from carbon atom number no more than 18 is former Subnumber no more than 18 substituted fatty hydrocarbon base, aryl, substituted aryl, heteroaryl, substituted heteroaryl, aralkyl, substituted aralkyl, Heteroarylalkyl replaces heteroarylalkyl, silylation;
R5- O-B- Formula V
In Formula V, B is selected from the alkylene that carbon atom number is no more than 10;R5Aliphatic group, carbon selected from carbon atom number no more than 18 is former Subnumber no more than 18 substituted fatty hydrocarbon base, aryl, substituted aryl, heteroaryl, substituted heteroaryl, aralkyl, substituted aralkyl, Heteroarylalkyl replaces heteroarylalkyl, silylation;
In Formula IV, R6The substituted fatty hydrocarbon base of aliphatic group, carbon atom number no more than 18, virtue selected from carbon atom number no more than 18 Base, heteroaryl, substituted heteroaryl, aralkyl, substituted aralkyl, heteroarylalkyl, replaces heteroarylalkyl, silylation at substituted aryl;
In Formula VII, R7The substituted fatty hydrocarbon base of aliphatic group, carbon atom number no more than 18, virtue selected from carbon atom number no more than 18 Base, heteroaryl, substituted heteroaryl, aralkyl, substituted aralkyl, heteroarylalkyl, replaces heteroarylalkyl, silylation at substituted aryl;
The rhodium source be selected from dimerization rhodium acetate, triphenylphosphine rhodium carbonyl chloride, dimerization hydroxyl (1,5- cyclo-octadiene) rhodium (I), Praseodynium rhodium (III), four carbonyl dichlorides, two rhodium, (1,5- cyclo-octadiene) chlorine rhodium (I) dimer, two rhodium of dichloride are (double Norbornadiene), acetylacetone,2,4-pentanedione bi-vinyl rhodium, acetylacetone,2,4-pentanedione (1,5- cyclo-octadiene) rhodium, trifluoroacetic acid rhodium (II) dimer, Four or three [- (+)-N- (to dodecyl benzene sulfonyl) porphyrin] two rhodiums, dichloro (pentamethylcyclopentadiene base) close rhodium dimer, triphen At least one of base phosphine hydrogenized carbonyl rhodium;
The achiral ligand is selected from the compound of structural formula shown in the compound with structural formula shown in formula (1), formula (2), formula (3) compound of structural formula shown in the compound of structural formula shown in the compound of structural formula shown in, formula (4), formula (5), formula (6) institute Show at least one of the compound of structural formula:
In formula (1), R8Selected from hydrogen ,-CH3、—OCH3、—N(CH3)2、—OCH(CH3)2;R9Selected from hydrogen ,-OCH3、—N (CH3)2、—OCH(CH3)2;R10Selected from cyclohexyl ,-C (CH3)3
In formula (2), R11Selected from-OCH2CH3、—C(CH3)3, phenyl;
In formula (3), R12Selected from phenyl, cyclohexyl;N is 1 or 3;
In formula (4), R13Selected from phenyl ,-C (CH3)3
In formula (5), R14Selected from hydrogen, phenyl ,-CH3;R15Selected from hydrogen ,-CH3、—C(CH3)3
In formula (6), R16Selected from-CH3Or-COOH;
The chiral ligand is selected from the compound of structural formula shown in the compound with structural formula shown in formula (7), formula (8), formula (9) The compound of structural formula shown in the compound of structural formula shown in the compound of shown structural formula, formula (10), formula (11), formula (12) institute Show shown in the compound of structural formula shown in the compound of structural formula shown in the compound of structural formula, formula (13), formula (14), formula (15) Knot shown in the compound of structural formula shown in the compound of structural formula shown in the compound of structural formula, formula (16), formula (17), formula (18) At least one of the compound of structural formula shown in the compound of structural formula shown in the compound of structure formula, formula (19), formula (20):
In formula (7), R17Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyls, 3,5- bis- Aminomethyl phenyl, p-nitrophenyl;R18Selected from methyl, phenyl, tert-butyl, isopropyl, cyclohexyl;
In formula (8), R19Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3,5- bis- Aminomethyl phenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (9), R20Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3,5- bis- Aminomethyl phenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (10), R21Selected from methyl, phenyl, trifluoromethy phenyl;R22Selected from methyl, phenyl, trifluoromethy phenyl, first Phenyl, 2,4,6- trimethylphenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (11), R23Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (12), R24Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (13), R25Selected from H, F;R26Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethyls Phenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (18), R27Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyls, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (19), R28Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl;
In formula (20), R29Selected from methyl, phenyl, trifluoromethy phenyl, methoxyphenyl, 2,4,6- trimethylphenyl, 3,5- 3,5-dimethylphenyl, p-nitrophenyl, isopropyl, cyclohexyl.
2. the method according to claim 1, wherein in Formulas I and Formula II, R1、R2Not independently selected from carbon atom number Aliphatic group, acetyl group, benzyl more than 18,4- methoxy-benzyl, 1- menaphthyl, tert-butyl dimethyl silica ethyl, 3,3- Diphenyl propyl, 2- phenethyl, furfuryl, thienylethyl, indolylethyl, 1,3- benzo dioxy -5- methyl, tertiary butyloxycarbonyl Base, benzoyl, tablet held before the breast by officials methoxycarbonyl group, tri-chloroethoxy base formoxyl, p-nitrophenyl sulfonyl, to Methyl benzenesulfonyl base or methyl sulphur Acyl group.
3. the method according to claim 1, wherein R1And R2In at least one be selected from have formula III shown in structure The group of formula.
4. the method according to claim 1, wherein at least including the following steps:
A) rhodium source, chirality and/or achiral ligand, connection enamine compound are added in organic solvent, at -78 DEG C to 120 DEG C It is stirred to react 10 minutes to 120 hours;
B) after reaction, add water quenching to go out, through liquid separation, washing, drying, remove organic solvent, separation to get bis- Asia 1,2- Methyl cyclobutane chipal compounds.
5. according to the method described in claim 4, it is characterized in that, reaction temperature is -20 DEG C to 100 DEG C in step a);Reaction Time is 10 minutes to 48 hours.
6. according to the method described in claim 4, it is characterized in that, connection enamine compound and rhodium source and ligand rub in step a) That ratio are as follows:
Join enamine compound: Rh: ligand=1:0.01~1:0.01~1.
7. according to the method described in claim 4, it is characterized in that, connection enamine compound and rhodium source and ligand rub in step a) That ratio are as follows:
Join enamine compound: Rh: ligand=1:0.01~0.15:0.05~0.50;
In terms of the molal quantity of the molal quantity in rhodium source rhodium element contained in the rhodium source.
8. according to the method described in claim 4, it is characterized in that, organic solvent described in step a) be selected from benzene, carbon tetrachloride, Petroleum ether, tetrahydrofuran, dimethylformamide, acetone, ether, methylene chloride, chloroform, toluene, dimethylbenzene, chlorobenzene, neighbour At least one of dichloro-benzenes, hexamethylene, n-hexane, normal heptane, six ring of dioxane, acetonitrile, methanol, ethyl alcohol, pentane.
9. according to the method described in claim 4, it is characterized in that, step b) the isolated method is selected from recrystallization, thin layer At least one of chromatography, column chromatography, vacuum distillation;
In the recrystallization, thin-layer chromatography and column chromatography method, used solvent is the mixed of polar solvent and nonpolar solvent Close object;Wherein, the volume ratio of polar solvent and nonpolar solvent is 1:0.1~500.
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