WO2003095415A2 - Composes amines porteurs d'au moins un allyle et d'un difluoromethylene et et leur preparation - Google Patents
Composes amines porteurs d'au moins un allyle et d'un difluoromethylene et et leur preparation Download PDFInfo
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- WO2003095415A2 WO2003095415A2 PCT/FR2003/001198 FR0301198W WO03095415A2 WO 2003095415 A2 WO2003095415 A2 WO 2003095415A2 FR 0301198 W FR0301198 W FR 0301198W WO 03095415 A2 WO03095415 A2 WO 03095415A2
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- 0 CC(C(*)*)NC Chemical compound CC(C(*)*)NC 0.000 description 3
- AHOIFANORWVRSR-UHFFFAOYSA-N C#CCC(C(F)(F)F)NCc1ccccc1 Chemical compound C#CCC(C(F)(F)F)NCc1ccccc1 AHOIFANORWVRSR-UHFFFAOYSA-N 0.000 description 1
- LTCHHSFNCNGZEA-UHFFFAOYSA-N CCOC(C(CN(Cc1ccccc1)C(CC=C)C(F)(F)F)=C)=O Chemical compound CCOC(C(CN(Cc1ccccc1)C(CC=C)C(F)(F)F)=C)=O LTCHHSFNCNGZEA-UHFFFAOYSA-N 0.000 description 1
- SVXVQGHKZKUEIS-NTUHNPAUSA-N FC(/C=N/Cc1ccccc1)(F)F Chemical compound FC(/C=N/Cc1ccccc1)(F)F SVXVQGHKZKUEIS-NTUHNPAUSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
- C07C211/44—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring
- C07C211/45—Monoamines
- C07C211/46—Aniline
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/66—Preparation of compounds containing amino groups bound to a carbon skeleton from or via metallo-organic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/01—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms
- C07C211/26—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an unsaturated carbon skeleton containing at least one six-membered aromatic ring
- C07C211/27—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an unsaturated carbon skeleton containing at least one six-membered aromatic ring having amino groups linked to the six-membered aromatic ring by saturated carbon chains
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated
Definitions
- the present invention relates to amino compounds carrying at least one allyl and a difluoromethyl, as well as a process useful for their synthesis.
- the present invention relates more particularly to compounds which are capable of cyclizing by metathesis and an original technique of ⁇ -allylation of a difluoromethyl group and of an amine.
- new fluorinated compounds have appeared in the fields of pharmacy and agriculture.
- there are more and more interesting derivatives which are both difluoromethyls and contain a nitrogen heterocycle. Most often, the difluoromethylene groups are carried by the cycle while being exocyclic.
- a term should be defined which will be used later in the description; it is the term metathesis.
- metathesis will designate a phenomenon relatively distant from the linguistic concept; this term will designate the replacement of two unsaturations by another unsaturation, with ejection of an unsaturated molecule corresponding to the ejected part.
- the two unsaturations can belong to one or two molecules.
- some intramolecular metatheses have been demonstrated in the particular case where amino acids, or rather their esters carrying two unsaturations, have been subjected to Grubbs salts.
- the acid functions to which reference is made are oxygenated acid functions such as the carboxylic functions, the phosphoric or phosphonic functions, functions which have a strong electron-withdrawing power, in particular by mesomeric effect.
- One of the aims of the present invention is to provide compounds comprising two unsaturations, an amino function comprising in position ⁇ a difluoromethyl group and not comprising the acid functions (optionally in ester form) specified above and, in particular, not comprising phosphonate functions or carboxylate functions in the ⁇ position of the amino function.
- Another object of the present invention is to provide compounds of the above type which are capable of being cyclized by intramolecular metathesis. Compounds of this type are very difficult to obtain. Indeed, the difluoromethylene group generally tends to modify the reactivity of the functions with which it is close, which makes the problem more difficult to solve all the more since its influence is somewhat erratic.
- one of the aims of the present invention is to provide compounds comprising at least one carbon bearing:
- Another object of the present invention is to provide a compound of the above type, characterized in that it is capable of cyclizing under the action of the Grubbs complexes.
- Another object of the present invention is to provide a process capable of obtaining a compound of the above type, using a step of grafting an allylic group on a carbon carrying a trivalent nitrogen and a difluoromethylene group.
- Another object of the present invention is a process which makes it possible to graft an allyl group on an imine carrying on its carbon a difluoromethyl group (aldimine or cetimine), the imine not carrying a phosphonated or carboxylated function, likewise not comprising no oxygen-attracting electron-withdrawing function.
- - a difluoromethylene group
- - a radical advantageously chosen from those which are donors or weakly electron-withdrawing ( ⁇ p ⁇ 0.2, advantageously 0.1), preferably alkyl (lato sensus), more preferably hydrogen; characterized by the fact that the amino function carries a hydrocarbon radical advantageously carrying an ethylenic unsaturation.
- the latter radical is advantageously such that said ethylenic unsaturation is in the allylic or homoallylic position relative to the amine.
- the above compound has the following formula:
- Rf represents a carbon radical carrying a difluoromethylene group ensuring the link with the rest of the molecule, advantageously at most 15, preferably at most 10 carbon atoms;
- - Ri represents a hydrogen, an alkyl radical, including aralkyl, preferably from 1 to 2 carbon atoms or one of the specific radicals specified later;
- - R 2 represents a hydrogen, an alkyl radical, including aralkyl, preferably from 1 to 2 carbon atoms or an aryl radical;
- R 3 represents a hydrogen or a hydrocarbon radical such as alkyl, including aralkyl, preferably from 1 to 2 carbon atoms or an aryl radical, or forms with R 4 an additional double bond to transform the allylic radical into a propargyl radical;
- R 4 represents a hydrogen or a hydrocarbon radical, such as aryl or alkyl, including aralkyl, preferably from 1 to 2 carbon atoms, or with R 3 forms an additional double bond so that the ethylenic bond becomes acetylenic, making it possible to to pass from an allylic radical to a propargyl radical;
- R 5 represents a hydrogen or a hydrocarbon radical such as an aryl radical, or an alkyl radical, including aralkyl, preferably from 1 to 2 carbon atoms;
- R 5 can be a so-called “Ar” group as described in the patent published under the number EP 565 607 B, a patent entitled protecting group; - R 5 and R 4 may be fractions of said group "Ar” above, so that R 5 and R 4 as well as the carbon which carries them, form a radical Ar as defined in the European patent above; one of R 1 ( R 2 , R 4 , R 3 and R 5 can also be chosen from trivalent, nitrile or acid functions, optionally and preferably, in esterified form.
- the carbon carrying the R f group and the amine may be chiral and the above compound may be one of the chiral isomers.
- alkyl including aralkyl, is taken in its etymological sense from an alcohol from which the OH function has been removed; thus, an alkyl is a carbon radical in general hydrocarbon in which the function which remains free is carried by a sp 3 hybridization carbon, said sp 3 carbon itself being connected only to hydrogen or carbon atoms.
- At least 2, advantageously 3, preferably 4, of the radicals R 1 to R 5 are at most 5, advantageously at most 3 of carbon; however, at least one of the radicals R to R 5 may be such that the allylic radical corresponds to that of a heavy alcohol, for example of aromatic series, of terpene series, or of steroid series.
- a radical and at most 3 radicals R to R 5 can be aryl radicals, mono- or polycyclic radicals, condensed or not, homo- or heterocyclic.
- R ⁇ and R 2 be as small as possible, if it is desired that the synthesis be easy.
- R and R 2 are such that at least one of the 2 is hydrogen and the other is methyl or hydrogen.
- radical R 3 it is advantageous for the radical R 3 to be different from carboxylic radicals, in particular carboxylic esters, to avoid untimely cyclizations during the synthesis.
- the allylic radical formed by R to R 5 as well as by the carbon atoms which carry them, are advantageously palindromes so that the result of a synthesis of allylic nature which gives the same results as the substitution is of nature SN or nature SN .
- the radical R is a radical or a donor group or little electron-withdrawing group; this can be defined by indicating that advantageously ⁇ p is at most equal to 0.2.
- R is chosen from alkyls, hydrogen and aryls.
- R is advantageously hydrogen
- R ′ can be hydrogen, a protective group, an aryl or an alkyl, including aralkyl.
- protective groups mention should be made of the protective groups known during the synthesis of acids amines for the amino functions, in particular the groups whose open bond is carried by a carbon in the allylic, benzyl or propargylic position.
- R is an allylic radical, hydrogen or a metal cation, or a fraction of metal cations, when the metal is polyvalent as is preferred.
- R 'and R " is a homoallylic or allylic radical.
- the reaction not only respects the chirality of the initially chiral carbon atoms but also makes it possible, with excellent diastereoisomeric excesses, to convert a prochiral carbon into chiral carbon.
- the prochiral carbon is here the carbon carrying the imine function.
- the chiral inductor is advantageously the radical R 'then chosen so that R' is itself chiral.
- the chiral carbon (or one of the chiral carbons) of R ′ is close to the imine function (that is to say separated by the most direct path by at most 3 links, advantageously at most two, including atom, nitrogen of said imine function), preferably directly linked to nitrogen of the imine function.
- the first tooth being the nitrogen of the imine function and the second tooth being a metalloid atom chosen from those of column V (column of nitrogen ) and column VI (chalcogen column), this metalloid atom being placed in the beta, gamma or delta position relative to the nitrogen of the imine function, so as to be able to form a cycle with 5, 6 or 7 centers with a metal cation such as for example zinc.
- the diastereoisomeric excesses can reach a value much greater than 80 and even 90%.
- R11 and R13 different chosen from alkyls, aryls and hydrogen, with q chosen from integers from 1 to 3 (ie 1, 2 or 3); with Z chosen from the metalloid elements of column V (column of nitrogen) in the trivalent state advantageously carrying a hydrocarbon chain and from chalcogens.
- R12 is chosen from hydrogen and hydrocarbon chains, in particular aryls, alkyls, and acyls.
- At least one of R11 and of R13 is chosen from aryls, advantageously homocyclic and / or six-membered, preferably homocyclic and six-membered.
- q is equal to 1 or 2, preferably 1
- the link between the hook is a methylene link which is optionally monosubstituted or even disubstituted.
- This methylene is preferably unsubstituted and therefore of formula -CH 2 -.
- R12 is advantageously alkyl or acyl.
- Examples of molecules with a chiral group include ephedrine and O-substituted derivatives of ephedrine and glycinol derivatives.
- the chiral group is part of a chiral polymer; or that it is a molecule of at most 20 carbon atoms, advantageously at most 15 carbon atoms.
- R ' is a chiral radical of formula:
- the number of carbons of the compounds of formula I according to the present invention is advantageously at most 30, preferably at most 20. According to the present invention, insofar as it relates to the compounds according to the present invention, and only the compounds, it is better that one at least R 'and R "is carrying a function, or more exactly an ethylenic unsaturation in the allylic or homo-allylic position, preferably allylic.
- R 1 The other of R 1 , R "is generally a protective group.
- the allylic radicals may be groups which protect amino functions.
- the group R may be a specific alkyl, namely an allyl.
- R 'and Rf have one of the values specified above, in particular when R 'is a protective radical, advantageously of benzyl nature, with 2 equivalents of allylic compounds such as allyl halides, one can obtain a derivative comprising 2 allylic radicals, on the carbon carrying both the radical Rf and the amino function .
- the group Rf which advantageously comprises between 1 and 10, more preferably from 1 to 4 carbon atoms, corresponds to the formula below: or :
- the X similar or different, represent a chlorine, a fluorine or a radical of formula C n F 2n + 1 , with n integer at most equal to 5, preferably 2, with the condition that at least one of the X either fluorine, fluorine advantageously carried by the carbon carrying the open bond;
- - GEA represents an electron-withdrawing group (that is to say sigma p greater than zero, advantageously 0.1, preferably 0.2) the possible functions of which are inert under the conditions of the reaction, advantageously fluorine or a perfluorinated residue of formula C n F 2n + 1 , with n integer at most equal to 8, advantageously 5; the total number of carbons of Rf being advantageously between 1 and 15, preferably between 1 and 10.
- the Rf is most often perfluoroethyl, difluoromethyl, chlorodifluoromethyl and especially trifluoromethyl.
- another object of the present invention is to provide methods comprising key steps making it possible in particular to obtain compounds according to the present invention.
- This object is achieved by the allylation process of a cetimine or an aldimine directly linked to at least one perfluoromethylene CF link, -) - to the action of an allylic halide or pseudohalide, in the presence of an elementary metal whose oxidized form advantageously has only a stable valency in the medium, a metal at least as reducing as hydrogen, in other words, as the redox potential (M ⁇ + + n & • ** M 0 ) is at most equal to 0 Volts relative to the hydrogen electrode, advantageously at most equal to that of zinc.
- the halogenide value of R is of interest only when it is desired to obtain a diallyl derivative on the carbon carrying the future amine and the radical Rf.
- organometallic derivatives previously synthesized and to bring the allyl organometallic derivative into contact with the imine only in a second step.
- the present invention relates to a process in which an organometallic is prepared by the action of an allyl halide on an element in the adequate metallic state.
- the metals suitable for this operation are the metals which have a redox potential sufficiently reducing to pass from an allyl halide to an organometallic. It is preferable to use metals having only one stable valence state in the medium considered (apart from the metallic state of course). Mention may in particular be made of magnesium, zinc, nickel, cobalt, indium, and even lithium. However, it should be noted that the alkalis do not always give satisfactory results. Indeed, the reaction seems to be favored when the amide corresponding to the product of the reaction is relatively poorly dissociated, which explains that there is no competition between the first allylation and an N-allylation of the metal derivative derived from the first condensation.
- the preferred metal is zinc. However, according to the present invention, a different procedure is preferred, since it is likely to work more frequently. It's about putting simultaneously the three reagents, namely imine, allyl halide and metal: this is a technique called the Barbier method.
- the reactants can be used simultaneously, the metal not reacting immediately with the other constituents of the mixture.
- reaction either the reaction is slow to start, or it is desirable to add a zinc activating element, such as traces of iodine or silyl chloride, to activate the metal surface.
- Electrolytic activation can also be carried out. Prior activation by diluted HCI is also possible.
- the reaction mixture can advantageously be made conductive, for example by adding salts known to be well dissociated from the metal used during this allylation reaction.
- salts known to be well dissociated from the metal used during this allylation reaction for example, zinc bromide can be used.
- the preferred solvents are the polar aprotic solvents known in the synthesis of organometallics. More specifically, it is preferable that said polar aprotic solvent has a significant dipole moment. Thus, its relative dielectric constant ⁇ (epsilon) is advantageously at least equal to approximately 5, and advantageously at most equal to approximately 50. It is, moreover, preferable that the polar solvents used in the invention are capable of well solvating the cations, which can be coded by the donor index D of these solvents, which is thus at least equal to 10, advantageously at least equal to 20. It is thus preferable for the donor index D of these solvents to be between 10 and 30, advantageously, between 20 and 30.
- Said donor index corresponds to ⁇ H (enthalpy variation), expressed in kilocalories, of the association of said polar aprotic solvent with antimony pentachloride. More specifically, reference may be made to Christian Reichardt's work "solvents and solvent effects in organic chemistr ⁇ - VCH p. 19, 1988". There we find the definition of the donor index ("donor number" in English) which is defined as the negative (- ⁇ H) of the enthalpy (kilocalorie per mole) of the interaction between the solvent and the pentachloride d 'antimony, in a dilute solution of dichloroethane.
- the solvents which are particularly advantageous for the reaction targeted by the present invention are the solvents which are essentially amides and, more particularly formamides, including lactams and urea derivatives (urea is here considered a diamide of the carbonic acid) and ethers, and in particular cyclic ethers.
- the reaction works with all metallic formatting but the form of spin works better than powders which itself works better than shot rather than in powder form.
- GP represents the leaving group, halogen, pseudohalogen, advantageously halogen, such as chlorine, preferably bromine or iodine, more preferentially bromine.
- halogen such as chlorine, preferably bromine or iodine, more preferentially bromine.
- the other radicals have already been defined above, they have the same values in formula III as in the previous formulas I and II.
- the group R 3 is a carboxylate, in particular an alkyl carboxylate (ester).
- the reaction must be carried out at low temperature so as to avoid a parasitic reaction, namely the formation according to mechanistic ways which are not completely understood, namely the formation of a lactam which is not other than a pyrolidone carrying a difluoromethylene group in position of the nitrogen of the amide function.
- Another point to consider is the choice of solvent. To avoid untimely cyclization as specified above, it is also possible to choose a more donor solvent and therefore better solvating the cations.
- the amides are among the solvents which have the best, or at least the highest, donor index.
- the solvents referred to in the table are solvents giving good results, but it should be noted that DMSO is capable of giving parasitic reactions in the presence of a reducing metal and that acetonitrile has a slightly low donor index, which makes the reactions quite lazy and a risk of cyclization when R 3 is a carboxylic function.
- the reaction is carried out, in general, at a temperature between the melting point and the boiling point of the solvent, more generally between 0 and 50 ° C., when solvents having a donor index at least equal are used. at 20.
- the reaction In the case of amides, the reaction generally takes place at room temperature (that is to say around 20 ° C. with a significant figure).
- the pressure has little importance on the reaction, unless it is desired to regulate the temperature by boiling a solvent or if it is desired to remove one of the products of the reaction as and when its formation.
- the products obtained by the step of condensing an imine with an allylic derivative can be continued by other steps so as to give either a particularly interesting component or the biallylated derivatives which are the subject of the invention.
- biallylated products One of the simplest ways to obtain biallylated products is to release the monoallylated amine formed and to make it act, according to techniques known for amines, on the corresponding corresponding allylic derivative.
- the step of allylation of the imine can be followed by a step of liberation of the amine, itself followed by a step of condensation of the amine on an allylic derivative comprising a suitable leaving group, advantageously such as bromide and iodide.
- Equation # 1 The reaction on the first step can be symbolized by equation # 1, below. Equation # 1
- the allylic derivative to be condensed with the intermediate amine advantageously corresponds to formula IV.
- GP has the same values as GP but the preference for halides is less marked than in the context of formula III.
- R to R ' 5 have the same values and with the same preferred combinations as for the radicals ranging from R to R 5 .
- the second allylation can be symbolized by equation 2 following Equation # 2
- R E, RvP in which the product obtained during the condensation step with imine (either in the hydrogen form or in an anionic form) is condensed with an allylic derivative comprising a leaving group.
- the operating conditions are mild conditions, R ′ is most often a protective group, which can advantageously be chiral and which also makes it possible to avoid double allylation of the amine; this double allylation is indeed often favored because the donor effect of the allyl group makes the nitrogen doublet of the amine more reactive.
- the bases are the usual bases in the field.
- a bicarbonate has been included but other bases can be used, in particular non-quaternizable amines.
- the solvent is acetonitrile, but other solvents can also be used.
- the procedure is according to the following procedure.
- the imine and allyl bromide used are dissolved in dimethylformamide, the allyl bromide being put in an excess of about 30% relative to the imine.
- the solution is stirred at room temperature, then zinc in shavings is added in excess of about 10% relative to the imine, then a few drops of TMSCI are added to the mixture (the zinc can also be previously activated with a solution diluted HCI, in which case the addition takes place at 0 ° C).
- the reaction mixture is cooled to 0 ° C. and then hydrolyzed with a saturated aqueous solution of ammonium hydrochloride.
- the aqueous solution obtained is extracted with diethyl ether three times in succession.
- the organic phases are combined and washed with a saturated aqueous solution of sodium chloride and then dried over magnesium sulfate.
- the product is purified by chromatography on silica gel using a petroleum ether-ethyl acetate mixture in a ratio of 80.10 to 10.
- the desired amine is obtained in the form of a colorless liquid .
- the 19 F, 1 H and 13 C NMR analyzes were carried out on a Bruker 200 MHz device.
- the chemical shifts ( ⁇ ) are given in ppm, according to CFCI 3 for the 19 F NMR analyzes, and according to TMS for the H and 13 C NMR analyzes. All these analyzes were carried out in CDCI 3 as solvent.
- the CPG analyzes were carried out on an HP 4890 device fitted with an SE 30 non-polar column (10 m). Except for the methallyl bromide which was distilled, all the reagents were used as such, without a purification procedure.
- Benzylimine derivatives Imine I corresponds to formula II, where Rf is a trifluoromethyl, where R is hydrogen and where R 'is benzyl:
- the homoallylic or homopropargyl amine (1 mmol), the allylic bromide (3 eq, 3 mmol), the NaHCO 3 (5 eq, 5 mmol) and the KI (10% mol, 0.1 mmol) are placed in the acetonitrile (3 ml) and heated to reflux (the progress of the reaction is monitored by CPG).
- the reaction medium is left to return to ambient temperature, hydrolysis with brine (10 ml) then extracted with Et 2 0 (3 x 10 ml).
- the combined organic phases are dried over MgSO 4 , filtered, then the solvents are evaporated.
- the crude product is purified by filtration on silica gel (petroleum ether) to obtain the ⁇ , ⁇ -unsaturated amine.
- the chiral imine (423 mg, 1.83 mmol) and allyl bromide (0.19 ml, 2.2 mmol) are dissolved in DMF (3 ml) and placed under an argon atmosphere. The solution is stirred at room temperature, then zinc (155 mg, 2.38 mmol) in shavings, then a few drops of TMSCI are added to the mixture. After 2 hours, the reaction mixture is cooled to 0 ° C and then hydrolyzed with a saturated aqueous solution of ammonium hydrochloride (20 ml). The aqueous solution obtained is extracted with diethyl ether (3 x 20 ml).
- the reaction can be carried out in THF under the same conditions but at reflux for 30 minutes.
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004503436A JP2005523339A (ja) | 2002-04-16 | 2003-04-15 | 少なくともアリル及びジフルオロメチルを有するアミノ化化合物及びそれらの合成に使用される方法 |
US10/511,487 US20060079719A1 (en) | 2002-04-16 | 2003-04-15 | Aminated compounds bearing at least an allyl and a difluoromethyl and method used for synthesis thereof |
EP03749902A EP1494994A2 (fr) | 2002-04-16 | 2003-04-15 | Composes amines porteurs d'au moins un allyle et d'un difluoromethyle et procede utile a leur synthese |
AU2003258754A AU2003258754A1 (en) | 2002-04-16 | 2003-04-15 | Aminated compounds bearing at least an allyl and a difluoromethyl and method used for synthesis thereof |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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FR0204725A FR2838436A1 (fr) | 2002-04-16 | 2002-04-16 | Composes amines porteurs d'au moins un allyle et d'un difluoromethyle et procede utile a leur synthese |
FR0204725 | 2002-04-16 | ||
FR0214581 | 2002-11-21 | ||
FR0214581A FR2847578A1 (fr) | 2002-11-21 | 2002-11-21 | Composes amines porteurs d'au moins un allyle et d'un difluoromethyle et procede utile a leur synthese |
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WO2003095415A2 true WO2003095415A2 (fr) | 2003-11-20 |
WO2003095415A3 WO2003095415A3 (fr) | 2004-04-01 |
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PCT/FR2003/001198 WO2003095415A2 (fr) | 2002-04-16 | 2003-04-15 | Composes amines porteurs d'au moins un allyle et d'un difluoromethylene et et leur preparation |
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US (1) | US20060079719A1 (fr) |
EP (1) | EP1494994A2 (fr) |
JP (1) | JP2005523339A (fr) |
AU (1) | AU2003258754A1 (fr) |
WO (1) | WO2003095415A2 (fr) |
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JP2013151452A (ja) * | 2012-01-25 | 2013-08-08 | Tosoh F-Tech Inc | 光学活性トルフルオロメチル基含有イミン誘導体、その製造方法並びにそれを用いたトリフルオロメチル基含有光学活性アミン誘導体の製造方法 |
Citations (3)
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US3478100A (en) * | 1965-10-22 | 1969-11-11 | Du Pont | Alpha,alpha-difluoro-alkylamines and process |
EP0072761A1 (fr) * | 1981-08-19 | 1983-02-23 | Merrell Toraude Et Compagnie | Dérivés fluorés d'alcandiamines avec activité inhibitante sur le décarboxylase |
WO1997040011A1 (fr) * | 1996-04-23 | 1997-10-30 | R. J. Reynolds Tobacco Company | Preparations pharmaceutiques pour la prevention et le traitement de troubles du systeme nerveux central |
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2003
- 2003-04-15 WO PCT/FR2003/001198 patent/WO2003095415A2/fr not_active Application Discontinuation
- 2003-04-15 US US10/511,487 patent/US20060079719A1/en not_active Abandoned
- 2003-04-15 EP EP03749902A patent/EP1494994A2/fr not_active Withdrawn
- 2003-04-15 JP JP2004503436A patent/JP2005523339A/ja not_active Withdrawn
- 2003-04-15 AU AU2003258754A patent/AU2003258754A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3478100A (en) * | 1965-10-22 | 1969-11-11 | Du Pont | Alpha,alpha-difluoro-alkylamines and process |
EP0072761A1 (fr) * | 1981-08-19 | 1983-02-23 | Merrell Toraude Et Compagnie | Dérivés fluorés d'alcandiamines avec activité inhibitante sur le décarboxylase |
WO1997040011A1 (fr) * | 1996-04-23 | 1997-10-30 | R. J. Reynolds Tobacco Company | Preparations pharmaceutiques pour la prevention et le traitement de troubles du systeme nerveux central |
Non-Patent Citations (14)
Title |
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EP1494994A2 (fr) | 2005-01-12 |
WO2003095415A3 (fr) | 2004-04-01 |
JP2005523339A (ja) | 2005-08-04 |
US20060079719A1 (en) | 2006-04-13 |
AU2003258754A1 (en) | 2003-11-11 |
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