Class 568/686 - Carbon to carbon unsaturation containing

Subclass of Class 568 - Organic compounds -- part of the class 532-570 series
Definition: Compounds which are acetylenically or ethylenically unsaturated.
No. of patents: 24
Last issue date: 05/20/2003

Number	Title	Issue Date
6566559	Process for the production of isopropenyl methyl ether Process for the production of unsaturated ethers, in particular isopropenyl methyl ether (IPM), by pyrolysis of a ketal-containing or acetal-containing mixture, in particular dimethoxypropane (DMP), in the liquid phase in the presence of an organic carbox...	05/20/2003
6406680	X-ray contrast agents This invention describes a new type of X-ray contrast agents. It has been found that iodinated alkenes containing one or several C.dbd.C double bonds substituted with electronic neutral substituents and iodine can be used as X-ray contrast agents. Also ne...	06/18/2002
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
4891451	Preparation of vinyl ethers Vinyl ethers of the formula (I) ##STR1## where R1 to R3 are identical or different and are each hydrogen, a straight-chain or branched alkyl or alkenyl radical of not more than 12 carbon atoms, halogen-substituted alkyl, a cyclo...	01/02/1990
4831183	Conjugated alkadiene telomerization to organooxyalkadienes A process for the telomerization of a conjugated alkadiene with an organic hydroxy compound to produce an organo-oxyalkadiene is disclosed. A palladium catalyst having an ionic ligand is employed in a substantially oxygen-free environment in the presence ...	05/16/1989
4792638	Isolation process of 2-chloroethyl vinyl ether The present invention relates to an isolation process of 2-chloroethylvinyl ether from a thermal decomposition product of 1,1-di(2-chloroethoxy)ethane, and comprises the azeotropic distillation of 2-chloroethyl vinyl ether and 2-chloroethanol from the pro...	12/20/1988
4642392	Conjugated alkadiene telomerization to organo-oxyalkadienes A process for the telomerization of a conjugated alkadiene with an alkanol is disclosed for the production of an organo-oxyalkadiene. A palladium catalyst having a phosphine or stibene ligand is employed in a substantially oxygen-free environment and in t...	02/10/1987
4496771	Process for preparing the compound 1-decyloxy-4-[(7-oxa-4-octynyl)-oxy]-benzene There is described a process for preparing the compound 1-decyloxy-4-[(7-oxa-4-octynyl)-oxy]-benzene consisting in condensing methyl-propargyl-ether with 1-bromo-3-chloro-propane and in reacting the resulting intermediate with 4-decyloxy-phenol in the pre...	01/29/1985
4439365	Novel hydroxy substituted prostanoic acids, esters, congeners, intermediates and process This disclosure describes certain 11-hydroxy and 11-deoxy-9-keto(or hydroxy)-prostanoic acid derivatives useful as bronchodilators, anti-ulcer agents, or as intermediates....	03/27/1984
4434303	Preparation and use of bis-(1-bromo-2,3,3-trichloro-2-propenyl) ether Bis-(1-bromo-2,3,3-trichloro-2-propenyl) ether of the formula ##STR1## is produced by reacting bis-(2,3,3-trichloro-2-propenyl) ether of the formula ##STR2## with bromine under irradiation with light. The end product as produced may be stea...	02/28/1984
4396782	Process for producing unsaturated ethers A process for producing ଱,ଲ-unsaturated alkenyl ethers by cleavage of acetals in the gas phase and in the presence of a catalyst, the catalyst used being calcium oxide, the acetal cleavage being performed in the temperature range of 200° to 3...	08/02/1983
4385185	ଲ-γ-Unsaturated ketones and isoprenoid 2,6 diones, a process for producing the same and their use as fragrant and flavoring substances Compounds of the general formula I: ##STR1## wherein R1 and R2 are equal or different alkyl-, alkoxyalkyl-, or aryl groups, or together form a ring; R3 is an allyl or benzyl radical; and R4 and R5	05/24/1983
4371717	Process for the in-solvent, in-situ generation of haloalkyl alkyl ethers The present invention is directed to a process for the preparation of certain N-substituted-2-haloacetanilides via the reaction of a secondary 2-haloacetanilide with a haloalkyl ether, particularly, halomethyl ethers, which comprises forming the ether in ...	02/01/1983
4315016	Heterocyclic triazolylethyl ether compounds and their use as pesticides Fungicidal compounds of the formula: ##STR1## wherein R3 is hydrogen, R4 is phenyl optionally substituted with one halogen, and R5 is alkyl having up to 5 carbon atoms, alkenyl having up to 5 carbon atoms, alkynyl hav...	02/09/1982
4310709	Manufacture of but-2-en-1-ol compounds by isomerizing the corresponding but-3-en-1-ol compounds The process for the manufacture of but-2-en-1-ol compounds by isomerizing but-3-en-1-ol compounds in the presence of a palladium catalyst and of hydrogen is improved by modifying the palladium catalyst with selenium or tellurium. The but-2-en-1-ols manufa...	01/12/1982
4284827	Process to prepare metalated olefins Substituted ethanes (I) are reacted with an alkyl metal reagent to form isomeric metalated olefins (IIIA and IIIB) having a trans (IIIB) to cis (IIIA) ratio of greater than 70:30....	08/18/1981
4163021	Synthesis of 2,6,10-trimethyl-undecan-1-ol A synthesis of 2,6,10-trimethyl-undecan-1-ol, an intermediate for producing vitamin E, from methacrolein, crotonaldehyde, ଲ-hydroxy-isobutyric acid including intermediates in this synthesis....	07/31/1979
4078005	Process for the production of alkoxytetrabromoctanes Alkoxyoctadienes are brominated with bromine to alkoxytetrabromoctanes of high purity by adding the bromine to an aqueous suspension of the alkoxyoctadienes at 0°-40° C....	03/07/1978
4060540	Novel 3-triphenylmethoxy-1-alkynes, 3-triphenyl-methoxy-1-trans-alkenyl-dialkyl-alanes, and lithium 3-triphenylmethoxy-1-trans-alkenyl-dialkyl alanates This disclosure describes 3-triphenylmethoxy-1-alkynes, 3-triphenylmethoxy-1-trans-alkenyl-dialkyl-alanes, and lithium 3-triphenylmethoxy-1-trans-alkenyl-dialkyl alanates useful as intermediates for the preparation of certain 11-hydroxy- and 11-deoxy...	11/29/1977
4007210	Novel 3-triphenylmethoxy-1-alkynes, 3-triphenylmethoxy-1-trans-alkenyl-dialkyl-alanes, and lithium 3-triphenyl-methoxy-1-trans-alkenyl-dialkyl-alanates This disclosure describes 3-triphenylmethoxy-1-alkynes, 3-triphenylmethoxy-1-trans-alkenyl-dialkyl-alanes, and lithium 3-triphenylmethoxy-1-trans-alkenyl-dialkyl alanates useful as intermediates for the preparation of certain 11-hydroxy- and 11-deoxy...	02/08/1977
4000312	Insecticides containing an unsaturated aliphatic chain and process for preparing the same Compounds consisting of a variously substituted unsaturated aliphatic chain and a terminal vinyl dichloro or trichloro substituted residue are disclosed, as well as a process for preparing them. The compounds are insecticides which exhibit an activity sim...	12/28/1976
3978134	Ether of thioether substituted benzaldehydes The present invention concerns novel compounds of the formula: ##EQU1## wherein R1 to R9 have various significances including e.g. alkyl, X and Y include O and S and s, v, w and z are O or whole numbers and Ar1 is a f...	08/31/1976
3978097	Ether and thioether substituted 3,4-alkylenedioxybenzenes The present invention concerns novel aromatic long chain alkenyl ethers and thioethers of the formula: ##EQU1## wherein R1 is a hydrocarbon group, R2, r3 and R4 are each H or alkyl, R6 is an aromatic ...	08/31/1976
3970704	Alkoxy substituted aliphatic di-olefinic halides Aliphatic hydrocarbon tri-olefinic and substituted aliphatic di-olefinic halides, and derivatives thereof, intermediates therefor, syntheses thereof, and the control of insects....	07/20/1976

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Class 568/686 - Carbon to carbon unsaturation containing