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| Number | Title | Issue Date |
| 7964764 | Hydrocarbon synthesis A method of synthesizing hydrocarbons from smaller hydrocarbons includes the steps of hydrocarbon halogenation, simultaneous oligomerization and hydrogen halide neutralization, and product recovery, with a metal-oxygen cataloreactant used to facilitate carbon-carbon... | 06/21/2011 |
| 7847139 | Hydrocarbon synthesis A method of synthesizing hydrocarbons from smaller hydrocarbons includes the steps of hydrocarbon halogenation, simultaneous oligomerization and hydrogen halide neutralization, and product recovery, with a metal-oxygen cataloreactant used to facilitate carbon-carbon... | 12/07/2010 |
| 7420097 | Synthesis of 6-aryl-6-alkyl fulvenes, 6-aryl-6-alkenyl fulvenes, and related compounds The present invention provides a method of making fulvenes, particularly 6-aryl-6-alkylfulvenes, 6-aryl-6-alkenylfulvenes, and related compounds, by combining alkyl- or alkenyl-arylketones with magnesium cyclopentadienyl reagents in nonprotic, including ethereal, so... | 09/02/2008 |
| 7348464 | Process for converting gaseous alkanes to liquid hydrocarbons A process for converting gaseous alkanes to liquid hydrocarbons wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromides and hydrobromic acid are then reacted over ... | 03/25/2008 |
| 7268266 | Process for converting gaseous alkanes to liquid hydrocarbons A process for converting gaseous alkanes to liquid hydrocarbons wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromides and hydrobromic acid are then reacted over ... | 09/11/2007 |
| 7244867 | Process for converting gaseous alkanes to liquid hydrocarbons A process for converting gaseous alkanes to liquid hydrocarbons wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromides and hydrobromic acid are then reacted over ... | 07/17/2007 |
| 6552239 | Synthesis of cyclopropaneacetylene by a one-pot process The present invention relates to a process for the preparation of cyclopropaneacetylene by reacting a ketophosphonate with a diazo-transfer reagent in the presence of non-nucleophilic base in an aprotic solvent to generate a reaction mixture containing a ... | 04/22/2003 |
| 6528693 | Preparation of cyclopropylethyne and intermediates for preparation of cyclopropylethyne 1-chloropropylethyne is prepared by dehydrochlorination with a base of 1-chloro-1-cyclopropylethene, which is itself prepared by treating 1-cyclopropylethanone with dichlorotriarylphosphorane or dichlorotrialkylphosphorane in the presence of a base.... | 03/04/2003 |
| 6414206 | Process for preparing bisindenylalkanes The present invention relates to a process for preparing bisindenylalkanes of formula I: ##STR1## wherein R1, R2, R3, and R4 independently represent H or a C1 -C6 hydrocarbon group or R | 07/02/2002 |
| 6388151 | Synthesis of Tetraalkylcyclopentadienes A method for synthesizing tetramethylcyclopentadiene from 2,3-dibromobutane is described. A 2-bromo-2-butene Grignard is reacted with an ethyl formate to produce a 3,5-dimethyl-2,5-heptadiene-4-ol magnesium bromide which is then quenched with acetic acid ... | 05/14/2002 |
| 6359164 | Process for the preparation of cyclopropylacetylene The present invention relates generally to novel methods for the preparation of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-ben zoxazin-2-one;... | 03/19/2002 |
| 6297410 | Process for the preparation of cyclopropylacetylene The present invention relates generally to novel methods for the synthesis of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-ben zoxazin-2-one; a... | 10/02/2001 |
| 6288297 | Process for the preparation of cyclopropylacetylene The present invention relates generally to novel methods for the synthesis of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-ben zoxazin-2-one; a... | 09/11/2001 |
| 6232516 | Process for cyclopentadiene substitution The process for the preparation of a selectively substituted cyclopentadiene compound which includes reacting a halide of a substituting compound in a mixture of the cyclopentadiene compound and an aqueous solution of a base in the presence of a phase tra... | 05/15/2001 |
| 6207864 | Process for preparing cyclopropylacetylene The invention relates to a process for the halogenation of cyclopropylmethyl ketone with at least one dihalo-triorganophosphorane of the general formula I R3 PHal2 (I), in which the radicals R can be the same or different and denote a s... | 03/27/2001 |
| 6072094 | Efficient synthesis of cyclopropylacetylene An efficient and facile process for the preparation of cyclopropylacetylene from thioanisole and cyclopropyl substituted ketones or aldehydes is disclosed.... | 06/06/2000 |
| 6049019 | Process for the preparation of cyclopropylacetylene The present invention relates generally to novel methods for the synthesis of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-ben zoxazin-2-one; a... | 04/11/2000 |
| 6028237 | Synthesis of cyclopropylacetylene The present invention relates generally to novel methods for the synthesis of cyclopropylacetylene which is a reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-ben zoxazin-2-one which is a useful ... | 02/22/2000 |
| 5973092 | Cyclopentadiene derivatives for carbon-carbon composites A thermosetting resin is formed from cyclopentadiene and a propargyl halide. The resin can be used with carbon fibers to form a carbon-carbon composite.... | 10/26/1999 |
| 5952537 | Preparation of cycloalkylacetylene compounds using dialkylaminomagnesium halide or bis(dialkylamino)magnesium The process of invention reacts an alkynyl halide with a mixture that includes a dialkylaminomagnesium halide or a bis(dialkylamino)magnesium compound to produce a cycloalkylacetylene compound. Preferably, the dialkylaminomagnesium halide compound is of t... | 09/14/1999 |
| 5773549 | Process for hydrotreating an organic feedstock containing a halogenated component and contaminated with distillable oxygen and nitrogen compounds having boiling points lower than the halogenated compounds The invention provides a process for hydrotreating an organic feedstock containing a halogenated component and contaminated with distillable oxygen compounds, and/or distillable nitrogen compounds having boiling points lower than the halogenated compounds... | 06/30/1998 |
| 5663467 | Synthesis of cyclopropylacetylene An improved synthesis of cyclopropylacetylene involving cyclization of 5-halo-1-pentyne in strong base is disclosed, and is useful for preparing compounds with a cyclopropylethynyl substituent, such as an intermediate for a highly potent HIV reverse trans... | 09/02/1997 |
| 5616752 | Metallocenes and processes therefor and therewith A method is provided for forming a supported cyclopentadiene-type compound comprising contacting a cyclopentadiene-type compound containing an active halogen with an inorganic support having surface hydroxyl group. Also there is provided a method of prepa... | 04/01/1997 |
| 5446225 | Palladium catalyzed akylative cyclization useful in syntheses of Vitamin D and analogues An alkylative cycloaddition method is provided that is particularly useful for the synthesis of many of the Vitamin D analogues with differing side chains. Thus, a preferred synthesis is of Vitamin D analogues having a side chain R1 where a fir... | 08/29/1995 |
| 5401894 | Process for the treatment of halogenated organic feedstocks A process for the conversion of a halogenated organic feedstock to produce a stream of hydrocarbonaceous compounds having an exceedingly low concentration of halogenated organic compounds and an aqueous stream containing hydrogen halide.... | 03/28/1995 |
| 5396006 | Preparation of alkenes and of cyclopentane and cyclohexane Preparation of alkenes as well as of cyclopentane and cyclohexane from the corresponding vicinal dichloro and dibromo alkanes and from ,ω-Dichloropentane and ,ω-dibromopentane and ,ω-dichlorohexane and ,ω-dibromohexane ... | 03/07/1995 |
| 5292977 | Palladium catalyzed alkylative cyclization useful in synthesis of vitamin D and analogues An alkylative cycloaddition method is provided that is particularly useful for the synthesis of many of the Vitamin D analogues with differing side chains. Thus, a preferred synthesis is of Vitamin D analogues having a side chain R1 where a sub... | 03/08/1994 |
| 5245064 | 1,2,3,4-tetraalkyl-5-perfluoroalkyl-cyclopentadiene, di-(perfluoroalkyl)-trialkylcyclopentadiene and transition metal complexes thereof The present invention provides a compound of the formula: ##STR1## wherein R1 is (C1 -C5)perfluoroalkyl, R2 is (C1 -C5)perfluoroalkyl or (C1 -C5)alkyl, R3 i... | 09/14/1993 |
| 5012023 | Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes are synthetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structu... | 04/30/1991 |
| 5012022 | Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes and synthetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structu... | 04/30/1991 |
| 4849566 | Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes are synthetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structu... | 07/18/1989 |
| 4795843 | Conversion of methane into larger organic hydrocarbons Organic hydrocarbons which comprise useful compounds may be obtained in a two-step process utilizing methane as a feedstock. The desired compounds are prepared by treating said methane with a halogenating agent such as chlorine, followed by contacting the... | 01/03/1989 |
| 4721823 | Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture Hydrocarbyl substituted cyclopentadienes, cyclopentenes, and cyclopentanes are sythetic lubricating compositions. The preferred structures contain 1 to 6 alkyl groups which have 4 to 36 carbon atoms and may have different and varying carbon chain structur... | 01/26/1988 |
| 4675462 | Process for the preparation of (2,2)-paracyclophane A process for the preparation of (2,2)-paracyclophane by conversion of p.methylbenzyltrimethylammonium halide to the corresponding hydroxide and by Hofmann elimination from p.methylbenzyltrimethylammonium hydroxide, wherein both reactions are carried out ... | 06/23/1987 |
| 4431853 | Dicyclohexylethane derivatives A 1,2-di[trans(equatorial-equatorial)cyclohexyl]-ethane derivative of the following general formula ##STR1## wherein R and R', independently from each other, represent a linear alkyl group having 1 to 10 carbon atoms.... | 02/14/1984 |
| 4289917 | Alkoxides of 2-pinanol Alkali metal oxides of cis- and trans-2,6,6-trimethylbicyclo(3.1.1)-heptan-2-ol are surprisingly effective bases in organic reactions calling for the use of a strong base, especially those reactions wherein abstraction of a proton from attachment to ... | 09/15/1981 |
| 4246373 | Synthesis of substituted cyclopentadienes and cyclopentadiene-functionalized polymers Aluminum cyclopentadienyl compounds can be used to synthesize a variety of organic molecules containing the cyclopentadiene group, e.g., substituted cyclopentadiene compounds, polymer molecules with cyclopentadiene pendant groups, and polymer molecules wi... | 01/20/1981 |
| 4179468 | Cyclic terpenoid onium salts, their preparation and uses Acyclic terpenoid onium salts are cyclized in an acidic aqueous solution at a temperature of at least about 80° C.... | 12/18/1979 |
| 4175187 | Process for the preparation of tertiary allylic amines from vinylic halides and olefins Tertiary allylic amines are obtained from vinylic halides and olefins, and substituted derivatives thereof, by reacting said halide with a mono-, di-, or tri-substituted olefin and an unhindered basic secondary amine in the presence of a palladium catalys... | 11/20/1979 |
| 4138441 | Synthesis of substituted cyclopentadienes and cyclopentadiene-functionalized polymers Aluminum cyclopentadienyl compounds can be used to synthesize a variety of organic molecules containing the cyclopentadiene group, e.g., substituted cyclopentadiene compounds, polymer molecules with cyclopentadiene pendant groups, and polymer molecules wi... | 02/06/1979 |
