Patents for C07B 49 - Grignard reactions (286)
10/2001
10/02/2001US6296788 Process for the preparation of Grignard reagents and novel Grignard reagents
09/2001
09/13/2001WO2001066248A2 C-c and c-n coupling catalyst comprising transition metal and carbene
08/2001
08/15/2001CN1308643A Method for the stereoselective production of grignard compounds and use thereof
07/2001
07/25/2001EP1117668A1 Fluorous phosphines and process for their preparation
07/19/2001WO2001051434A1 Reaction of carbonyl compounds with organometallic reagents
07/19/2001DE10001317A1 Reaction of carbonyl compound with organometallic reagent, e.g. preparation of biotin intermediate or 4-(4-(trans-4-pentylcyclohexyl) -1-cyclohexen-1-yl)-1-trifluoromethoxybenzene, uses mini- or microreactor
06/2001
06/28/2001DE19960866A1 Production of Grignard compounds from organic halides and magnesium metal in a solvent uses a cocatalyst of a compound containing a Group 1, 2 or 13 metal bonded to a Group 14-17 element or hydrogen
06/28/2001DE19960865A1 Increasing the rate of production of organometallic or inorganic magnesium compounds from magnesium metal in a solvent
05/2001
05/30/2001EP1102796A1 Method for the stereoselective production of grignard compounds and use thereof
05/15/2001US6231783 Solvent systems having improved physical properties to minimize entry into the environment and to facilitate separations and cleaning operations to minimize pollution
02/2001
02/28/2001EP1077923A1 An improved synthesis and purification of (r*,r*)-2- (dimethylamino) methyl]-1-( 3-methoxyphenyl) cyclohexanol hydrochloride
02/27/2001US6194599 Process for preparing biaryl compounds
02/21/2001CN1284506A Prep. of Grignard reagent and new grignard reagent
01/2001
01/25/2001DE19933833A1 Verfahren zur Herstellung von Grignard-Reagenzien und neue Grignard-Reagenzien A process for the preparation of Grignard reagents and Grignard reagents new
01/24/2001EP1070718A1 Method for Preparing Grignard Reagents and new Grignard Reagents
01/24/2001EP1070070A1 Method for producing grignard compounds
01/20/2001CA2314007A1 Process for the preparation of grignard reagents and novel grignard reagents
01/16/2001US6175025 Reacting a metallocene dihalide with an aryl or benzyl magnesium halide or diarylphosphinomethylmagnesium halide under specified conditions to produce a di-substituted metallocene compound; low cost, high yield
12/2000
12/06/2000EP1056750A1 Synthesis agents containing benzyl magnesium halogenides or allyl magnesium halogenides and method for producing same
12/05/2000US6156918 Process for the preparation of silanes, with a tertiary hydrocarbon group in the a-position relative to the silicon atom
09/2000
09/19/2000US6121480 Method for producing unsymmetrically substituted biphenyls
05/2000
05/23/2000US6066766 By reacting a 1-chloro-4-halo-benzene with an aryl grignard compound in the presence of a dicyclopentadienylphosphinopalladium catalyst of given formula
04/2000
04/25/2000US6054628 Reacting Grignard compounds with carbonyl compounds and ensuing hydrolysis
04/06/2000WO2000018774A1 Fluorous phosphines and processes for their preparation
03/2000
03/01/2000CN1245807A Preparation method of silicane whose alpha-position related to silicon atom possesses tertiary alkyl radical
02/2000
02/24/2000DE19836408A1 New Grignard compounds useful for production of substance libraries and in chemical syntheses
02/23/2000EP0980870A1 Process for preparing silanes substituted at position alpha of the silicon atom by a tertiary hydrocarbon group
02/20/2000CA2279739A1 Process for the preparation of silanes with a tertiary hydrocarbon group in the a-position relative to the silicon atom
02/17/2000DE19836470A1 Verfahren zur Herstellung von 4-Chlorbiphenylen A process for the preparation of 4-chlorobiphenyls
02/16/2000EP0979809A1 Process for the preparation of 4-chlorobiphenylenes
01/2000
01/20/2000WO2000002928A1 Method for the stereoselective production of grignard compounds and use thereof
01/20/2000CA2337043A1 Method for the stereoselective production of grignard compounds and use thereof
01/13/2000DE19830599A1 Verfahren zur stereoselektiven Herstellung von Grignardverbindungen und deren Verwendung A process for the stereoselective preparation of Grignard compounds, and their use
12/1999
12/16/1999DE19837906C1 Preparation of organosilane derivatives
12/02/1999WO1999061405A1 An improved synthesis and purification of (r*,r*)-2-[ (dimethylamino) methyl]-1-( 3-methoxyphenyl) cyclohexanol hydrochloride
12/02/1999CA2330142A1 An improved synthesis and purification of (r*,r*)-2-[(dimethylamino)methyl]-1-(3-methoxyphenyl)cyclohexanol hydrochloride
10/1999
10/21/1999DE19816414A1 New Grignard compounds useful for production of substance libraries and in chemical syntheses
10/14/1999WO1999051609A1 Method for producing grignard compounds
10/12/1999US5964919 Method of storing active zero valent zinc metal
09/1999
09/02/1999WO1999043684A1 Synthesis agents containing benzyl magnesium halogenides or allyl magnesium halogenides and method for producing same
07/1999
07/13/1999US5922898 Coupling arylmagnesium or -lithium reagent with aryl halide;catalysis with nickel or palladium catalyst and zinc or cadmium cocatalyst
04/1999
04/08/1999DE19808239C1 Organometallic compounds and Grignard reagents
03/1999
03/04/1999DE19808570C1 Synthesis reagent comprising benzyl-or allyl-magnesium halide
12/1998
12/22/1998US5852216 Preparation and use of (3-alkoxy-phenyl) magnesium chlorides
12/16/1998EP0883603A1 Method for producing unsymmetrically substituted biphenyls
05/1998
05/27/1998CN1182731A Reading grignard compounds with carbonyl compounds and ensuring hydrolysis
05/26/1998US5756653 Substituted polythiophenes from highly reactive zinc reagents
04/1998
04/29/1998EP0838450A2 Method for the reaction of Grignard compounds with carbonyl compounds and subsequent hydrolysis
12/1997
12/03/1997CN1166491A Preparation and use of (3-alkoxyphenyl) magnesium chlorides
11/1997
11/18/1997US5688985 Reacting n,n-dibenzylaminophenylalanine ester with acetonitrile in presence of an organometallic catalyst
08/1997
08/28/1997WO1997030970A1 Method for producing unsymmetrically substituted biphenyls
08/28/1997CA2246354A1 Method for producing unsymmetrically substituted biphenyls
08/20/1997EP0790251A2 Preparation and use of (3-alkoxyphenyl) magnesium chlorides
05/1997
05/22/1997WO1997018179A1 Replacement solvents for use in chemical synthesis
04/1997
04/24/1997DE19607135C1 Prodn. of asymmetric cyano-bi:phenyl cpds.
04/17/1997DE19605778C1 High yield 3-alkoxy-phenyl-magnesium chloride prepn. used in alcohol prepn.
12/1996
12/03/1996US5581004 Preparation and use of (2-butene-1,4-diyl) magnesium complexes in organic synthesis
09/1996
09/04/1996EP0729941A1 Process for producing keto nitrile derivative and hexenone derivative
03/1996
03/12/1996US5498734 Preparation and use of (2-butene-1,4-diyl)magnesium complexes in organic synthesis
02/1996
02/22/1996DE4439003C1 Grignard reagents comprising benzyl-magnesium halide
02/1995
02/09/1995DE4326169A1 Improved process for the preparation of bisaryl compounds
10/1994
10/25/1994US5358546 Reacting a zinc compound with a reducting agent
08/1993
08/05/1993WO1993015086A1 Highly reactive forms of zinc and reagents thereof
07/1993
07/27/1993US5231205 Formation of silanes from magnesium salts and dienes
04/1993
04/01/1993WO1993006110A1 Preparation and use of (2-butene-1,4-diyl)magnesium complexes in organic synthesis
01/1992
01/21/1992US5082961 Method for the preparation of an alkynyl compound
11/1991
11/26/1991US5068403 Intermediates useful in the production of pesticides
08/1991
08/14/1991EP0440737A1 Preparation of biaryl compounds
03/1991
03/27/1991EP0419330A2 Method for the preparation of an alkynyl compound
09/1990
09/18/1990US4958033 Process for preparing alcohols
05/1990
05/03/1990WO1990004577A1 Preparation of biaryl compounds
05/02/1990EP0366573A1 Preparation of biaryl compounds
04/1990
04/25/1990CA2000579A1 Preparation of biaryl compounds
03/1990
03/27/1990US4912276 Reacting an aryl halide to form a Grignard reagent; reacting with aryl chloride in presence of nickel catalyst
07/1988
07/06/1988EP0273528A1 Benzophenones and their preparation
09/1987
09/23/1987EP0238272A2 Intermediates useful in the production of pesticides
03/1986
03/04/1986CA1201443A1 PROCESS FOR PREPARING .alpha.-HYDROXY 2-THIOPHENE ACETIC ACID DERIVATIVES
02/1986
02/05/1986EP0170517A2 Process for the production of 1,2-amino alcohols
09/1984
09/26/1984EP0119701A1 Grignard syntheses
07/1984
07/11/1984EP0113107A2 Process for preparing alcohols
05/1983
05/17/1983US4384158 From 8-bromo-1-octyne and cis-3-octenylamagnesium chloride
03/1983
03/09/1983EP0073569A1 Process for the continuous production of alcohols
01/1982
01/27/1982EP0044558A1 Method for the preparation of alkyne-1 compounds
12/1981
12/08/1981US4304931 Biphenylhydroxypropionic acid derivatives
02/1979
02/20/1979CA1049027A1 Arylpropionic acids
05/1976
05/25/1976US3959364 Preparation of arylalkanoic acids
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