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| Number | Title | Issue Date |
| 7476772 | Process for preparing chlorinated carbonyl compounds in jet loop reactors The present invention relates to a process for preparing chlorinated or partly chlorinated carbonyl compounds, which comprises reacting unchlorinated or partly chlorinated carbonyl compounds with a chlorinating agent in a jet loop reactor. ... | 01/13/2009 |
| 7078574 | Method for the intrinsically safe handling of 3-chloropropyne A method is provided for the intrinsically safe handling of 3-chloropropyne in the presence of a diluent with a boiling point ranging from −50° C. (223 K) to 200° C. (473 K) under atmospheric pressure, wherein the concentration of 3-chloropropyne in the liquid p... | 07/18/2006 |
| 6835860 | Iodohydroxylation of olefins Iodohydroxylated olefins can be prepared by treating an olefin with an aqueous solution of an iodine monohalide selected from iodine monochloride and iodine monobromide. ... | 12/28/2004 |
| 6825390 | Stabilization and use of propargyl bromide Propargyl bromide is effectively stabilized against shock or thermal decomposition by use therewith of an environmentally acceptable inert liquid solvent that forms an azeotrope with propargyl bromide. ... | 11/30/2004 |
| 6794551 | Process for producing propargyl bromide This invention provides a process of producing propargyl bromide in the absence of a base. The process comprises: A) bringing together in a reaction zone under an inert atmosphere and in the absence of a base and in the presence of an inert diluent, a feed of... | 09/21/2004 |
| 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 |
| 6440892 | Method and catalyst composition for producing aromatic carbonates The present invention provides a method and catalyst composition for carbonylating aromatic hydroxy compounds, comprising the step of contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation cata... | 08/27/2002 |
| 6414204 | Process for producing allyl chloride In a process for production of allyl chloride whereby allyl alcohol and hydrogen chloride are reacted in the presence of a catalyst and the resulting allyl chloride is distilled off from the reaction system, the by-production of diallyl ether is suppresse... | 07/02/2002 |
| 6337425 | Method for chlorinating ketones In a process for chlorinating ketones which, apart from the carbonyl group, are inert in respect of triarylphosphine dichlorides, except for cyclopropyl methyl ketone, in which the ketones are reacted with a chlorinating agent in the presence of triarylph... | 01/08/2002 |
| 6245954 | Method of producing alkyl chloride, alkenyl chloride and alkinyl chloride The present invention relates to a process for preparing alkyl, alkenyl and alkynyl chlorides from alcohols by reaction with a chlorinating agent in the presence of a catalyst, wherein the catalyst is a urea compound.... | 06/12/2001 |
| 6087535 | Process for chloroalkynes and alkynyl amines This invention provides an improved process for the preparation of chloroalkynes from alkynyl alcohols. The chloroalkynes can be employed to prepare alkynyl amines which are useful for the manufacture of biologically active materials. The present inventio... | 07/11/2000 |
| 5912371 | Method for preparing fatty acid chlorides A method for preparing fatty acid chlorides. The method comprises reacting a silylation product of a fatty acid comprising at 1east 2 aliphatically unsaturated bonds per molecule and a chlorinating agent.... | 06/15/1999 |
| 5292973 | Phosphine oxide removal from compounds formed by a Wittig reaction An improvement is proposed for the removal of the precipitates of a phosphine oxide compound as a by-product from a mixture thereof with an olefin compound obtained by the Wittig reaction for the preparation of the olefin compound from a phosphorane compo... | 03/08/1994 |
| 5196611 | Preparation of alkyl, alkenyl, and alkynyl chlorides The preparation of an alkyl, alkenyl, or alkynyl chloride by the reaction of a corresponding alcohol with phosgene or thionyl chloride in the presence of a phosphine oxide acting as catalyst, wherein the catalyst used is an aliphatic, cycloaliphatic, or c... | 03/23/1993 |
| 5073659 | Process for the preparation of terpenes A terpene compound having the formula (III) is produced by reacting an allylic halide having the formula (I) with a Grignard reagent having the formula (II) in the presence of anhydrous zinc chloride and a copper compound or an organic zinc halide compoun... | 12/17/1991 |
| 4734524 | Synthetic pheromone 8-methyl-2-decanol propanoate A pheromonal compound produced by the western corn rootworm has been identified as 8-methyl-2-decanol propanoate (8-M-2-DP) having the structural formula: ##STR1## A synthesis has been devised for racemic 8-M-2-DP which demonstrates activity tow... | 03/29/1988 |
| 4681977 | Preparation of chloro-olefins Chloro-olefins which contain a group of the formula ##STR1## where Y is chlorine or hydrogen, which are prepared by a process in which a trichloromethyl compound which contains a group of the general formula ##STR2## where X is hydrogen or an or... | 07/21/1987 |
| 4668832 | Dehydration of halogenated, unsaturated alcohols to form halogenated, conjugated dienes Halogenated, unsaturated alcohols are dehydrated by contacting the alcohol and a carrier gas with a silica alumina catalyst to form dienes of the formula: ##STR1## wherein each X is independently hydrogen, fluorine chlorine, or bromine with the ... | 05/26/1987 |
| 4665221 | Preparation of terpenoid formates An improved process for the preparation of primary terpenoid alcohols, e.g. 6,7-dihydrogeraniol and phytol, and of their esters with formic acid. The terpenoid formates are obtained very advantageously by reacting the corresponding tert.-vinylcarbinols wi... | 05/12/1987 |
| 4604480 | Method for the preparation of sulfones and compounds containing carbon chains having conjugated unsaturation and the compounds resulting from such method A method for the preparation of a first sulfone compound of the formula: ##STR1## wherein Ra is ##STR2## where Rb is Br and Rc is H except that Rb and Rc together may be an electron pair whe... | 08/05/1986 |
| 4492800 | Process for the preparation of 1,1-dichloro-alkenes A process for the preparation of a 1,1-dichloro-alkene of the formula ##STR1## in which R1 is hydrogen, or an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, and R2 is an optionally sub... | 01/08/1985 |
| 4450309 | Process for the preparation of unsaturated geminal dihalogen compounds The invention relates to a new process for preparing unsaturated geminal dihalogen compounds. More particularly, the invention concerns a process for preparing compounds of the formula (I) ##STR1## wherein X is halogen, R1 is a straight or... | 05/22/1984 |
| 4424166 | Preparation of 1,1-dihalogeno-alkenes In the preparation of a 1,1-dihalogenoalkene of the formula ##STR1## in which R1 is a hydrogen atom or an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, and R2 is an optionally substit... | 01/03/1984 |
| 4355193 | Method for the preparation of cis-nonen-6-yl chloride The invention provides a novel and efficient method for the synthetic preparation of cis-nonen-6-yl chloride which is a useful intermediate compound for the syntheses of, for example, cis-nonen-6-yl acetate, cis-nonen-6-ol, cis-nonen-6-al and the like as ... | 10/19/1982 |
| 4350824 | Process for the preparation of 1,1-dichloro-alkenes A process for the preparation of a 1,1-dichloroalkene of the formula ##STR1## in which R1 is hydrogen, or an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, and R2 is an optionally subs... | 09/21/1982 |
| 4342704 | Process for the preparation of 1,1-dichloroalkenes A process for the preparation of a 1,1-dichloroalkene of the formula ##STR1## in which R1 is hydrogen or an optionally substituted alkyl, alkenyl, alkynyl, aralkyl or aryl radical, and R2 is an optionally substituted alkyl, alkenyl, ... | 08/03/1982 |
| 4335253 | Preparation of dihalovinyl compounds A process for the preparation of dihalovinyl compounds of the formula ##STR1## wherein each Hal is fluorine, chlorine or bromine, R1 is an optionally substituted hydrocarbyl group, R2 is a methyl group or a hydrogen atom, or R | 06/15/1982 |
| 4331820 | Cis-6-undecene-1-chloride and a method for the preparation thereof A novel compound cis-6-undecene-1-chloride is prepared by reacting cis-3-octene-1-chloride with metallic magnesium to give a Grignard reagent of the chloride and then reacting the Grignard reagent with 1-bromo-3-chloropropane in the presence of a lithium ... | 05/25/1982 |
| 4330482 | Process for the preparation of halogenoalkenes In the process for the production of a halogenoalkene of the formula ##STR1## in which R1 is an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkenyl, aralkyl, aralkenyl or aryl radical or an optionally substituted heter... | 05/18/1982 |
| 4305876 | Process for the manufacture of tertiary, optically active aliphatic compounds A process for asymmetrically hydrogenating through the use of microorganisms a double bond connected to tertiary carbon atom in an olefinic aliphatic compound to produce a tertiary, optically active aliphatic compound useful as an intermediate for optical... | 12/15/1981 |
| 4233464 | Cyclohexene carotinoid intermediates 1-[3-Methyl-3,5,5-trialkoxy-pent-1-yn-1-yl]-2,6-dimethyl-cyclohex-1-enes, which may or may not be methyl-substituted in the 2- and/or 6-position, are obtained by reacting the corresponding 1-[3-methyl-but-1-yn-3-en-1-yl]-2,6-dimethyl-cyclohex-1-enes with ... | 11/11/1980 |
| 4216173 | 1,1-Dichloro-4-methyl-3-hydroxy-pent-1-ene A 1,1-dichloro-4-methyl-3-hydroxy-pent-1-ene and a process for its production.... | 08/05/1980 |
| 4191712 | Process for the preparation of 1,1-dihalo-4-methyl-1,3-pentadiene compounds Process for making 1,1-dihalo-4-methyl-1,3-pentadiene compounds which process comprises reacting a 2-2-dimethyl-3,5,5,5-tetrahelogenopent-1-yl derivative of the formula ##STR1## in which Hal1 is defined as above, Hal2 is halogen... | 03/04/1980 |
| 4137273 | Phenolic ethers Novel phenyl derivatives of formula I useful for the control of insects and novel intermediates.... | 01/30/1979 |
| 4081488 | Process for preparing 1,1-dihalo-4-methyl-1,3-pentadienes 1,1-Dihalo-4-methyl-1,3-pentadienes, key intermediates in the syntehsis of insecticidal dihalovinylcyclopropanecarboxylates, may be prepared in three steps beginning with the Friedel Crafts condensation of a vinylidene halide and an isobutyryl halide in t... | 03/28/1978 |
| 4078008 | Process for the preparation of dienes A process for the preparation of a diene of the formula ##STR1## in which X and Y are independently fluorine, chlorine or bromine Which comprises contacting a 1,1,1-trihalo-4-methyl-4-hydroxypentane of the formula ##STR2## in which X and Y have ... | 03/07/1978 |
| 4053380 | 1,1,1-Trihalogeno-4-methylpentenes, method of preparing the same and use of the same in the preparation of 1,1-dihalogeno-4-methyl-1,3-pentadienes 1,1,1-Trihalogeno-4-methyl pentenes and 1,1-dihalogeno-4-methyl-1,3-pentadienes are produced. These compounds are of value as intermediates for the production of pyrethrin analogs which are of use as insecticides or agricultural chemicals.... | 10/11/1977 |
| 4039591 | Synthesis of dehydrophytol and Vitamin E A process for the synthesis of dehydrophytol and Vitamin E comprising forming a C15 acetylene from hexahydropseudoionone and then coupling said acetylene with 1-acetoxy-4-chloro-3-methylbut-2-ene to form a C20 acetoxy-enyne. The latt... | 08/02/1977 |
| 4038330 | 1-Methyl-2-halogenomethyl-3-isopropenyl-cyclopent-1-enes Cyclopentene derivatives of the general formula ##STR1## where Hal is chlorine, bromine or iodine.... | 07/26/1977 |
| 4022672 | Electrochemical synthesis of insecticide intermediates 1,1,1-Trihalo-4-methylpentenes, carrying 2-substituents selected from those conjugate bases of Bronsted acids which are leaving groups in beta eliminations, are reduced electrochemically to 1,1-dihalo-4-methylpentadienes, intermediates in the synthesis of... | 05/10/1977 |
