CN105130894B - Isoquinoline compound and its synthetic method - Google Patents
Isoquinoline compound and its synthetic method Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D217/00—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems
- C07D217/12—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with radicals, substituted by hetero atoms, attached to carbon atoms of the nitrogen-containing ring
- C07D217/14—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with radicals, substituted by hetero atoms, attached to carbon atoms of the nitrogen-containing ring other than aralkyl radicals
- C07D217/16—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with radicals, substituted by hetero atoms, attached to carbon atoms of the nitrogen-containing ring other than aralkyl radicals substituted by oxygen atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D221/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
- C07D221/02—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 condensed with carbocyclic rings or ring systems
- C07D221/04—Ortho- or peri-condensed ring systems
- C07D221/06—Ring systems of three rings
- C07D221/08—Aza-anthracenes
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/06—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
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Abstract
The present invention relates to a kind of isoquinoline compound and its synthetic method, the structural formula of such compound is: R1For:Phenyl, 4 aminomethyl phenyls or 2 methoxyl group naphthyls;R2For:Hydrogen, methyl, phenyl, 4 aminomethyl phenyls or benzyl;R3 For:Methyl formate, Ethyl formate or formamide;R4For:Phenyl, 4 chlorphenyls, alkyl or methyl formate.The substituted isoquinoline compound of the present invention is a kind of highly useful organic synthesis building block, and such compound also has higher bioactivity and potential physiological and pharmacological activity.The raw material of the present invention is easy to get, and reaction selectivity is high, and using cheap four gentle hydration manganese acetates as catalyst, relatively inexpensive novelty.And using conventional reaction dissolvent, simple to operate, mild condition, reaction environmental protection, when outstanding in yield, there is good development prospect in the industrial production.
Description
Technical field
The present invention relates to a kind of isoquinoline compound and its synthetic method.
Background technology
Nitrogen heterocyclic ring is a kind of very common pharmacophoric group in drug research field, is current small-molecule drug research and development
One of important goal.Before global sales in 2014 in the brand medicine of 25, all with nitrogen heterocyclic ring skeleton.Various substitutions
Isoquinoline compound be a kind of important nitrogen heterocyclic ring, they are widely used in field of medicaments.This kind of compound by
The features such as antibiotic property in its wide spectrum, stronger antibacterial action, preferable drug tolerance, as important synthetic antibacterial drug
It is widely applied clinically.For example, jamaicin is to hemolytic streptococcus, staphylococcus aureus, gonococcus and Freund, will
Hayes shigella dysenteriae has antibacterial action, and has enhancing white blood cell phagocytosis.The hydrochloride of jamaicin, it is commonly called as the hydrochloric acid coptis
Element, treatment gastroenteritis, bacillary dysentery etc. are widely used in, to pulmonary tuberculosis, scarlet fever, acute tonsillitis and respiratory tract infection
Also there is certain curative effect.Therefore development one kind can efficiently synthesize isoquinoline compound, particularly prepare all kinds of substituted isoquinolin
The new method of class compound, has great importance.It can not only provide important synthetic intermediate for iloquinoline derivative medicine
(See reference document:IJzerman, A. P. et al.J. Med. Chem. 2000, 43, 2227).Simultaneously synthesizing is each
The isoquinoline compound of kind substitution also is available for physiologically active screening in itself(See reference document:Koskinen, A. M. P. et
al. Bioorg.Med. Chem.2009, 17, 4441).
The method for the synthesis isoquinoline compound reported in document mainly has following several:
(One)2007, Porco groups realized the series connection of intramolecular under the silver catalysis of three fluosulfonic acid by designing substrate
Cycloisomerisation, Dipolar Cycloaddition then is carried out with alkynes to build isoquinoline compound molecular skeleton.Study mechanism is sent out
Existing, the cycloisomerisation generation N- methylene imine ylides of silver catalysis are the key intermediates to form pyrroles's isoquinolin skeleton.But
The Material synthesis of this method is complex(See reference document:Su, S.; Porco, J. A.J. Am. Chem. Soc.2007, 129, 7744).
(Two)Ellman seminars under Rh catalysis, are then entered under palladium carbon catalysis again using N- benzyls imines and alkynes
Row hydrogenation synthesizes isoquinoline class derivate.But this method equally exists the shortcomings of Material synthesis complexity(See reference document:
Ellman, J. A. J. Am. Chem. Soc.2008, 130, 3645).
(Three)2012, Liu Guosheng seminars utilized the imines substrate of ortho position alkynes substitution, by the use of silver nitrate as urging
Agent, for NFSI as Fluorine source and oxidant, one-step method obtains the isoquinoline compound of 4- fluorine substitution.But this method is to substrate
Scope have larger limitation, and used excess raw material cause to waste(See reference document:Xu, T.; Liu, G.Org. Lett.2012, 14, 5416).
(4) 2014 years, yellow Chinese seminar passed through the C-H/N-N keys of order by the use of Rh (III) as catalyst
Priming reaction, ketone azo-compound is reacted with alkynes, efficiently obtain polysubstituted isoquinoline compound.This reaction
Atom economy it is high, completed using only air as oxidant can under conditions of room temperature(See reference document:Huang,
H. Org. Lett.2014, 16, 3532).
In summary, the synthetic method of isoquinoline compound has that the above is several, but substrates of these reactions are all relative
It is more complicated, often to react to obtain by several steps.Also, these reactions generally require to use transition metal conduct costly
Catalyst.
The content of the invention
An object of the present invention is to provide a kind of isoquinoline compound.
The second object of the present invention is the preparation method for providing such compound.
To reach above-mentioned purpose, the reaction mechanism that the inventive method uses for:
R1For:Phenyl, 4- aminomethyl phenyls, 2- methoxyl group naphthyls;
R2For:Methyl, phenyl, 4- aminomethyl phenyls, benzyl;
R3For:Methyl formate, Ethyl formate, formamide;
R4For:Phenyl, 4- chlorphenyls, the tert-butyl group, methyl formate.
According to above-mentioned reaction mechanism, present invention employs following technical scheme:
A kind of polysubstituted isoquinoline compound, it is characterised in that the structural formula of such compound is:
R1For:Phenyl, 4- aminomethyl phenyls or 2- methoxyl group naphthyls;R2For:Hydrogen, methyl, phenyl,
4- aminomethyl phenyls or benzyl;R3For:Methyl formate, Ethyl formate or formamide;R4For:Phenyl, 4- chlorphenyls, alkyl or formic acid
Methyl esters.
A kind of synthetic method for preparing polysubstituted isoquinoline compound according to claim 1, its feature exist
There are following steps in this method:Under an inert atmosphere, by alkenyl isonitrile, hydrazine, manganese acetate, peroxidized t-butyl perbenzoate(Business
Product reagent)By 1:(2.0~8.0):(0.2~1.0):(2.0~10.0)Mol ratio be added in acetonitrile solvent, in 60~
80 oStirring reaction to reaction raw materials disappear under C;After reaction terminates, washed respectively with water and saturated sodium bicarbonate solution, use second
Acetoacetic ester extracts product, and organic phase obtains crude product after removing solvent;The crude product obtains iloquinoline derivative chemical combination through separating-purifying
Thing;The structural formula of described alkenyl isonitrile is:;The structural formula of described hydrazine is:。
The substituted isoquinoline compound of the present invention is a kind of important organic reaction intermediate, by different types of
Organic chemical reactionses, such as annulation, addition reaction, reduction reaction, it can quickly and easily synthesize and a series of contain isoquinoline
The alkaloid of quinoline skeleton.Isoquinoline compound is not only important pharmaceutical intermediate, and is the important knot of natural products
Structure.
Isoquinoline compound can as the intermediate of organic synthesis, come synthesize the reactive compound of some iloquinoline derivatives or
Medicine.It is exemplified below:
(One)German Eberhard groups are reacted from isoquinoline compound tetrahydrobiopterin synthesis isoquinoline using Bruylants
Quinoline compound, product structure witho- methyl armepavine is more similar, has certain pharmaceutical activity(See reference document:
Eberhard, R.; Christian, E. Mon. Fur. Chem. 2004, 135, 1289-1295).
(Two)Berberine is Isoquinolinium hydrochloride, has more patent report to synthesize 1,2 by isoquinoline compound,
3,4- four hydrogen isoquinoline hydrochloric acid salt medicines.Such as following reaction synthesizes 4- methyl isophthalic acids from 4- methylisoquinoliniums, 2,3,4- tetrahydrochysenes are different
Quinoline hydrochloride(See reference document:Gottschling, D.; Dahmann, G.; Doods, H. Patent: US 195954A1, 2011,104-105).
(Three)Jamaicin can be synthesized by isoquinoline compound as initiation material, and its synthetic route is in related text
Middle report is offered, its synthetic reaction is as follows(See reference document:Zinovia, K.; Fichtner, R. H.; Poplawski,
J.; Nalliah, B. C.; MacLean, D. B.Can. J. Chem. 1980 , 58, 2770-2779).
As can be seen here, development one kind can efficiently synthesize isoquinoline compound, particularly prepare all kinds of substituted isoquinolin
The new method of class compound, has great importance.It can not only provide important synthetic intermediate for iloquinoline derivative medicine,
Simultaneously synthesizing various substituted isoquinoline compounds also are available for physiologically active screening in itself.
The inventive method raw material is simple and easy to get, and avoids the harshnesses such as strong acid as catalyst using cheap manganese acetate
Condition use.Reaction has used the reaction dissolvent of routine, and simple to operate, mild condition, reaction is environmentally friendly, when excellent in yield
Show, there is good development prospect in the industrial production.
Embodiment
Embodiment one:The carboxylate methyl ester isoquinolin of 1,4 diphenyl 3
The carboxylate methyl ester isoquinolin of 1,4 diphenyl 3 uses following step:1. add 13.1 in 1000 milliliters of reaction bulbs
Gram diphenylacrylate methyl esters of 2 isonitrile base 3,3,26.2 grams of phenylhydrazines, 2 grams of manganese acetates, 51.0 grams of tertiary fourths of perbenzoic acid
Ester, 650 milliliters of acetonitriles, is heated to 70 DEG C.Tracked and reacted with thin-layer chromatography method, disappeared to reaction raw materials;2. reaction terminates
Afterwards, into system plus water quenching is gone out reaction, it is extracted with ethyl acetate product, organic phase is through saturated common salt water washing, with revolving after drying
Turn evaporimeter and remove solvent, obtain crude product;3. crude product column chromatography(Petroleum ether:Ethyl acetate=20: 1)Purifying, is obtained
To 11.89 grams of carboxylate methyl ester isoquinolin of Isosorbide-5-Nitrae diphenyl 3, yield 83%.
IR (KBr, cm–1):1723.8, 1545.8, 1336.8, 1225.8, 1178.3, 996.3, 761.9,
698.7, 665.7.
1H NMR (CDCl3, 500 MHz):δ 8.18 (d, J = 8.0 Hz, 1H), 7.77 (td, J = 7.5,
1.5 Hz, 2H), 7.72 (d, J = 8.0 Hz, 1H), 7.66 (td, J = 7.5, 1.5 Hz, 1H), 7.61
(td, J = 7.5, 1.5 Hz, 1H), 7.57-7.49 (m, 6H), 7.41 (dd, J = 8.0, 1.5 Hz, 2H),
3.70 (s, 3H).
13C NMR (CDCl3, 125 MHz):δ 167.69, 160.35, 141.40, 138.88, 136.67,
136.15, 132.92, 130.75, 130.36, 129.97, 129.10, 128.58. 128.45, 128.42,
128.17, 127.91, 127.32, 126.87, 52.55.
EI-MS m/z (%): 339 (44) [M+], 281 (35), 280 (100), 279 (24), 278
(47).
Embodiment two:The phenyl isoquinolin quinoline of 1 (4 chlorphenyl) 3 carboxylate methyl ester 4
The phenyl isoquinolin quinoline of 1 (4 chlorphenyl) 3 carboxylate methyl ester 4 uses following step:1. in 1000 milliliters of reaction bulbs
Add 17.4 gram of 2 diphenylacrylate methyl esters of isonitrile base 3,3,28.9 gram of 4 chlorophenyl hydrazine, 3 grams of manganese acetates, 48.0 grams of peroxidating
T-butyl perbenzoate, 500 milliliters of acetonitriles, is heated to 60 DEG C.Tracked and reacted with thin-layer chromatography method, disappeared to reaction raw materials;②
After reaction terminates, into system plus water quenching is gone out reaction, and product is extracted with ethyl acetate, and organic phase is dry through saturated common salt water washing
Remove solvent with Rotary Evaporators after dry, obtain crude product;3. crude product column chromatography(Petroleum ether:Ethyl acetate=20: 1)
Purifying, obtains 22.00 gram of 1 phenyl isoquinolin quinoline of (4 chlorphenyl) 3 carboxylate methyl ester 4, yield 81%.
IR (KBr, cm–1): 1715.6, 1597.4, 1491.0, 1437.7, 1326.2, 1225.7,
1170.7, 1086.1, 1003.5, 970.2, 841.7, 767.3, 694.9.
1H NMR (CDCl3, 500 MHz):δ 8.13 (d, J = 8.0 Hz, 1H), 7.72 (d, J = 8.0
Hz, 3H), 7.67 (td, J = 6.5, 1.0 Hz, 1H), 7.62 (td, J = 7.5, 1.5 Hz, 1H),
7.54-7.49 (m, 5H), 7.40 (dd, J = 8.0, 1.5 Hz, 2H), 3.70 (s, 3H).
13C NMR (CDCl3, 125 MHz):δ 167.55, 158.92, 141.41, 137.30, 136.58,
135.91, 135.19, 133.06, 131.60, 130.72, 129.80, 128.73, 128.55, 128.33,
128.12, 127.30, 127.04, 126.90, 52.46.
EI-MS m/z (%): 375 (20) [M+ (37Cl)], 373 (42) [M+ (35Cl)], 316 (39),
315 (51), 314 (100).
Embodiment three:The phenyl isoquinolin quinoline of 1 tert-butyl group, 3 carboxylate methyl ester 4
The phenyl isoquinolin quinoline of 1 tert-butyl group, 3 carboxylate methyl ester 4 uses following step:1. added in 1000 milliliters of reaction bulbs
21.7 gram of 2 diphenylacrylate methyl esters of isonitrile base 3,3,346.8 grams of Tertiary butyl hydrazine hydrochlorides, 289.2 grams of sodium acid carbonates, 4.3
Gram manganese acetate, 75.0 grams of peroxidized t-butyl perbenzoates, 750 milliliters of acetonitriles, is heated to 60 DEG C.Tracked with thin-layer chromatography method
Reaction, disappeared to reaction raw materials;After 2. reaction terminates, into system plus water quenching is gone out reaction, and product is extracted with ethyl acetate, organic
Mutually through saturated common salt water washing, remove solvent with Rotary Evaporators after drying, obtain crude product;3. crude product column chromatography(Oil
Ether:Ethyl acetate=10: 1)Purifying, obtains 33.65 gram of 1 phenyl isoquinolin quinoline of 3 carboxylate methyl ester of the tert-butyl group 4, yield is
80%。
IR (KBr, cm–1): 1729.9, 1441.6, 1361.5, 1235.6, 1160.4, 987.4, 771.6,
697.3, 556.9.
1H NMR (CDCl3, 500 MHz):δ 8.63 (d, J = 8.5 Hz, 1H), 7.67 (dd, J = 8.0,
1.0 Hz, 1H), 7.64-7.60 (m, 1H), 7.59-7.55 (m, 1H), 7.50-7.44 (m, 3H), 7.35-
7.33 (m, 2H), 3.67 (s, 3H), 1.73 (s, 9H).
13C NMR (CDCl3, 125 MHz):δ 168.28, 166.75, 139.95, 136.90, 136.50,
131.87, 129.89, 129.25, 128.17, 127.81, 127.78, 127.12, 126.80, 126.57,
52.12, 40.11, 31.19.
EI-MS m/z (%): 319 (100) [M+], 318 (44), 304 (52), 277 (82), 258
(84).
HRMS (ESI) m/z: calcd for C21H22NO2: 320.1651; found: 320.1645.
Example IV:The phenyl isoquinolin quinoline of 1,3 dicarboxylic acid methylester 4
The phenyl isoquinolin quinoline of 1,3 dicarboxylic acid methylester 4 uses following step:1. add 44.3 in 1000 milliliters of reaction bulbs
Gram diphenylacrylate methyl esters of 2 isonitrile base 3,3,28.9 grams of methyl hydrazinocarboxylates, 20 grams of manganese acetates, 50.0 grams of benzoyl peroxides
T-butyl formate, 500 milliliters of acetonitriles, is heated to 80 DEG C.Tracked and reacted with thin-layer chromatography method, disappeared to reaction raw materials;It is 2. anti-
After should terminating, into system plus water quenching is gone out reaction, product is extracted with ethyl acetate, organic phase is through saturated common salt water washing, drying
Remove solvent with Rotary Evaporators afterwards, obtain crude product;3. crude product column chromatography(Petroleum ether:Ethyl acetate=10: 1)It is pure
Change, obtain 48.50 gram 1, the phenyl isoquinolin quinoline of 3 dicarboxylic acid methylester 4, yield 45%.
IR (KBr, cm–1): 1731.4, 1434.8, 1368.8, 1236.5, 1198.0, 1154.5,
988.5, 762.7, 698.7.
1H NMR (CDCl3, 500 MHz): δ 8.84 (d, J = 8.5 Hz, 1H), 7.78-7.75 (m,
1H), 7.70-7.69 (m, 2H), 7.51-7.50 (m, 3H), 7.33 (dd, J = 7.5, 2.0 Hz, 2H),
4.12 (s, 3H), 3.71 (s, 3H).
13C NMR (CDCl3, 125 MHz):δ 166.56, 165.86, 148.17, 140.48, 137.37,
136.80, 135.48, 131.21, 129.87, 129.45, 128.36, 128.32, 127.01, 126.95,
126.42, 53.25, 52.62.
EI-MS m/z (%): 321 (298) [M+], 231 (826), 203 (815), 202 (552).
HRMS (ESI) m/z: calcd for C19H16NO4: 322.1079; found: 322.1074.
Embodiment five:1 phenyl 3 carboxylate methyl ester 4 (4 aminomethyl phenyl) 7 methylisoquinoliniums
1 phenyl 3 carboxylate methyl ester 4 (4 aminomethyl phenyl) 7 methylisoquinoliniums use following step:1. in 1000 millis
Rise and 15.3 gram of 2 isonitrile base 3,3 two (4 aminomethyl phenyl) methyl acrylate, 85.3 grams of phenylhydrazines, 7.5 grams of vinegar are added in reaction bulb
Sour manganese, 25.0 grams of peroxidized t-butyl perbenzoates, 500 milliliters of acetonitriles, it is heated to 70 DEG C.Tracked and reacted with thin-layer chromatography method,
Disappeared to reaction raw materials;2. after reaction terminates, into system plus water quenching is gone out reaction, product is extracted with ethyl acetate, organic phase passes through
Saturated common salt water washing, remove solvent with Rotary Evaporators after drying, obtain crude product;3. crude product column chromatography(Petroleum ether:
Ethyl acetate=20: 1)Purifying, obtains 20.40 gram of 1 methyl isoquinoline of 3 carboxylate methyl ester 4 (4 aminomethyl phenyl) of phenyl 7
Quinoline, yield 70%.Fusing point:143-144 ℃.
IR (KBr, cm–1): 1724.9, 1313.7, 1224.7, 1164.0, 1012.2, 770.8, 700.8,
523.8.
1H NMR (CDCl3, 500 MHz):δ 7.90 (s, 1H), 7.76-7.74 (m, 2H), 7.63 (d, J = 8.5 Hz, 1H), 7.57-7.47 (m, 4H), 7.33-7.27 (m, 4H), 3.72 (s, 3H), 2.48 (d, J = 6.0 Hz, 6H).
13C NMR (CDCl3, 125 MHz):δ 167.57, 159.24, 140.28, 138.78, 138.69,
137.68, 134.98, 133.11, 133.06, 132.84, 130.21, 129.67, 129.03, 128.89,
128.45, 127.44, 126.73, 126.57, 52.47, 21.95, 21.43.
EI-MS m/z (%): 367 (52) [M+], 322 (14), 309 (30), 308 (100), 294
(69).
Embodiment six:The benzylisoquinoline of 1 phenyl, 3 carboxylate methyl ester 4
The benzylisoquinoline of 1 phenyl, 3 carboxylate methyl ester 4 uses following step:1. added in 1000 milliliters of reaction bulbs
9.9 grams (Z) 23,4 diphenyl of isonitrile base, 2 M Cr, 36.8 grams of phenylhydrazines, 14.0 grams of manganese acetates, 125.0 grams of peroxides
Change t-butyl perbenzoate, 600 milliliters of acetonitriles, be heated to 70 DEG C.Tracked and reacted with thin-layer chromatography method, disappeared to reaction raw materials;
2. after reaction terminates, into system plus water quenching is gone out reaction, be extracted with ethyl acetate product, organic phase through saturated common salt water washing,
Remove solvent with Rotary Evaporators after drying, obtain crude product;3. crude product column chromatography(Petroleum ether:Ethyl acetate=30:
1)Purifying, obtains 16.30 gram of 1 benzylisoquinoline of 3 carboxylate methyl ester of phenyl 4, yield 60%.
IR (KBr, cm–1): 1722.7, 1441.5, 1380.9, 1248.0, 1213.6, 1070.9,
990.9, 771.4, 703.0.
1H NMR (CDCl3, 500 MHz):δ 8.12 (t, J = 8.5 Hz, 2H), 7.73 (d, J = 7.0
Hz, 2H), 7.67 (t, J = 7.5 Hz, 1H), 7.58-7.50 (m, 4H), 7.28-7.21 (m, 4H),
7.19-7.16 (m, 1H), 4.76 (s, 2H), 3.96 (s, 3H);
13C NMR (CDCl3, 125 MHz):δ 168.16, 159.87, 142.44, 140.02, 139.05,
136.61, 130.78, 130.34, 129.73, 128.98, 128.67, 128.54, 128.47, 128.26,
127.71, 126.29, 125.33, 52.93, 33.99.
EI-MS m/z (%): 353 (67) [M+], 321 (100), 320 (57), 293 (24), 292
(72).
Embodiment seven:1 phenyl, 3 carboxylate methyl ester, 4 methyl 8 methoxyl group benzo [h] isoquinolin
1 phenyl, 3 carboxylate methyl ester, 4 methyl 8 methoxyl group benzo [h] isoquinolin uses following step:1. 1000
Milliliter reaction bulb in add 15.3 grams (Z) -2- isonitrile bases -3- (6- methoxyl group -2- naphthyls) 2- M Crs, 25.3 grams of benzene
Hydrazine, 7.5 grams of manganese acetates, 25.0 grams of peroxidized t-butyl perbenzoates, 650 milliliters of acetonitriles, it is heated to 80 DEG C.With thin-layer chromatography side
Method tracking reaction, disappears to reaction raw materials;After 2. reaction terminates, into system plus water quenching is gone out reaction, and production is extracted with ethyl acetate
Thing, organic phase remove solvent with Rotary Evaporators after drying, obtain crude product through saturated common salt water washing;3. crude product post layer
Analysis(Petroleum ether:Ethyl acetate=5: 1)Purifying, obtains 26.00 gram of 1 methoxyl group of 3 carboxylate methyl ester of phenyl, 4 methyl 8
Benzo [h] isoquinolin, yield 60%.Fusing point:181-182 ℃.
IR (KBr, cm–1): 1708.6, 1609.2, 1504.4, 1448.2, 1346.8, 1219.9,
1206.8, 1137.4, 1021.5, 847.6, 708.5, 623.9.
1H NMR (CDCl3, 500 MHz):δ 8.02 (d, J = 9.0 Hz, 1H), 7.93 (d, J = 9.0
Hz, 1H), 7.66 (d, J = 9.5 Hz, 1H), 7.56-7.55 (m, 2H), 7.46-7.45 (m, 3H),
7.22-7.21 (m, 1H), 6.82 (dd, J = 9.5, 2.5 Hz, 1H), 4.01 (s, 3H), 3.90 (s,
3H), 2.90 (s, 3H);
13C NMR (CDCl3, 125 MHz):δ 168.00, 158.51, 155.83, 143.60, 141.49,
136.66, 135.13, 131.72, 130.08, 129.21, 129.13, 128.45, 127.65, 125.01,
123.71, 122.02, 116.50, 108.35, 55.36, 52.65, 14.78.
EI-MS m/z (%): 357 (90) [M+], 299 (100), 297 (73), 254 (36).
Embodiment eight:The carboxylic acid, ethyl ester isoquinolin of 1,4 diphenyl 3
The carboxylic acid, ethyl ester isoquinolin of 1,4 diphenyl 3 uses following step:1. add 15.3 in 1000 milliliters of reaction bulbs
Gram diphenyl-ethyl acrylate of 2 isonitrile 3,3,44.4 grams of phenylhydrazines, 29.0 grams of manganese acetates, 52.0 grams of tertiary fourths of perbenzoic acid
Ester, 500 milliliters of acetonitriles, is heated to 70 DEG C.Tracked and reacted with thin-layer chromatography method, disappeared to reaction raw materials;2. reaction terminates
Afterwards, into system plus water quenching is gone out reaction, it is extracted with ethyl acetate product, organic phase is through saturated common salt water washing, with revolving after drying
Turn evaporimeter and remove solvent, obtain crude product;3. crude product column chromatography(Petroleum ether:Ethyl acetate=10: 1)Purifying, is obtained
To 24.20 grams of carboxylic acid, ethyl ester isoquinolin of Isosorbide-5-Nitrae diphenyl 3, yield 67%.Fusing point:131-132 ℃.
IR (KBr, cm–1): 1729.6, 1391.4, 1223.5, 1178.2, 1107.0, 1008.6,
770.1, 701.0.
1H NMR (CDCl3, 500 MHz): δ 8.18 (d, J = 8.0 Hz, 1H), 7.78-7.76 (m,
2H), 7.73 (d, J = 8.0 Hz, 1H), 7.65 (td, J = 7.0, 1.5 Hz, 1H), 7.60 (td, J =
6.5, 1.0 Hz, 1H), 7.57-7.48 (m, 6H), 7.44-7.42 (m, 2H), 4.12 (q, J = 7.0 Hz,
2H), 0.98 (t, J = 7.0 Hz, 3H).
13C NMR (CDCl3, 125 MHz):δ 167.48, 160.27, 142.14, 138.78, 136.42,
136.09, 132.00, 130.60, 130.27, 130.05, 128.95, 128.41, 128.28, 128.18,
128.04, 127.80, 127.07, 126.58, 61.32, 13.70. EI-MS m/z (%): 353 (21) [M+],
281 (33), 280 (100), 279 (15), 277 (18).
HRMS (ESI) m/z: calcd for C24H20NO2: 354.1494; found: 354.1488.
Embodiment nine:The acylpiperidine isoquinolin of 1,4 diphenyl 3
The acylpiperidine isoquinolin of 1,4 diphenyl 3 uses following step:1. add 15.3 in 1000 milliliters of reaction bulbs
Gram 2- isonitrile -3,3- diphenyl -1- (1- piperidines) allydione, 44.4 grams of phenylhydrazines, 29.0 grams of manganese acetates, 52.0 grams of benzoyl peroxide first
Tert-butyl acrylate, 500 milliliters of acetonitriles, is heated to 70 DEG C.Tracked and reacted with thin-layer chromatography method, disappeared to reaction raw materials;2. react
After end, into system plus water quenching is gone out reaction, is extracted with ethyl acetate product, and organic phase is through saturated common salt water washing, after drying
Remove solvent with Rotary Evaporators, obtain crude product;3. crude product column chromatography(Petroleum ether:Ethyl acetate=10: 1)It is pure
Change, obtain 24.20 grams of acylpiperidine isoquinolin of Isosorbide-5-Nitrae diphenyl 3, yield 80%.Fusing point:214-215 ℃.
IR (KBr, cm–1): 1744.3, 1631.3, 1433.1, 1377.8, 1245.2, 1024.1,
985.9, 758.2, 698.0.
1H NMR (CDCl3, 500 MHz):δ 8.14 (d, J = 8.5 Hz, 1H), 7.79 (d, J = 8.5
Hz, 1H), 7.75 (d, J = 7.0 Hz, 2H), 7.64 (t, J = 7.5 Hz, 1H), 7.57-7.47 (m,
9H), 3.51 (s, 2H), 3.11 (t, J = 5.0 Hz, 2H), 1.45-1.44 (m, 2H), 1.35 (s, 2H),
1.15 (s, 2H);
13C NMR (CDCl3, 125 MHz):δ 167.35, 160.38, 146.11, 138.88, 136.11,
134.87, 130.77, 130.52, 130.24, 128.81, 128.50, 128.36, 128.24, 127.79,
127.37, 126.40, 125.93, 47.54, 42.10, 25.81, 25.13, 24.32.
EI-MS m/z (%): 392 (9) [M+], 281 (51), 280 (100), 208 (53), 256 (40)
。
Claims (1)
1. a kind of preparation method of polysubstituted isoquinoline compound, the structural formula of such compound are:
R1For:Phenyl, 4- aminomethyl phenyls or 2- methoxyl group naphthyls;R2For:Hydrogen, methyl, phenyl, 4- methyl
Phenyl or benzyl;R3For:Methyl formate base, group-4 ethyl formate or formamido;R4For:Phenyl, 4- chlorphenyls, alkyl or formic acid
Carbomethoxy;It is characterized in that this method has following steps:Under an inert atmosphere, by alkenyl isonitrile, hydrazine, manganese acetate, peroxidating
T-butyl perbenzoate presses 1:(2.0~8.0):(0.2~1.0):The mol ratio of (2.0~10.0) is added in acetonitrile solvent, in
Stirring reaction to reaction raw materials disappear at 60~80 DEG C;After reaction terminates, washed, used respectively with water and saturated sodium bicarbonate solution
Ethyl acetate extracts product, and organic phase obtains crude product after removing solvent;The crude product obtains iloquinoline derivative through separating-purifying
Compound;The structural formula of described alkenyl isonitrile is:The structural formula of described hydrazine is:R4-NHNH2。
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Title |
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Mn-Catalyzed Oxidative Annulation of Vinyl Isocyanides with Hydrazines: Synthesis of Multi-substituted Isoquinolines;毛宏, 洪小虎, 许斌;《中国化学会全国第十一届有机合成化学学术研讨会论文集》;20141031;第255页 * |
异腈参与的惰性键活化反应研究进展;王浩,许斌;《有机化学》;20150107;第588-602页 * |
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