FREMGANGSMADE TIL FREMSTILLING AF TRANS-DECALINDERIVATER

FREMGANGSMADE TIL FREMSTILLING AF TRANS-DECALINDERIVATER

A process for the preparation of trans-decahydronaphthalene compounds of Formula I I wherein X is lower alkyl, -(CH2)3-Z-R2, -(CH2)3COOR4, or -(CH2)3CN; Y and Z are ketalized carbonyl or free, esterified, or etherified hydroxymethylene; U is halogen; R1, R2, and R3 are lower alkyl; and R4 is alkyl;...

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Hauptverfasser: WIECHERT R, SAUER G, EDER U, HAFFER G, NEEF G
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Sprache:dan
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ACYCLIC OR CARBOCYCLIC COMPOUNDS
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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creator WIECHERT R
SAUER G
EDER U
HAFFER G
NEEF G
description A process for the preparation of trans-decahydronaphthalene compounds of Formula I I wherein X is lower alkyl, -(CH2)3-Z-R2, -(CH2)3COOR4, or -(CH2)3CN; Y and Z are ketalized carbonyl or free, esterified, or etherified hydroxymethylene; U is halogen; R1, R2, and R3 are lower alkyl; and R4 is alkyl; WHEREIN AN OCTAHYDRONAPHTHALENE COMPOUND OF Formula II II is converted, in the presence of bases, by reaction of a trialkyl chlorosilane of the formula (R5)3Si-Cl WHEREIN THE R5 each are lower alkyl group, to a hexahydronaphthalene compound of the formula The hexahydronaphthalene compound is hydrogenated, in an inert solvent with hydrogen in the presence of a platinum-, palladium-, or rhodium-containing hydrogenation catalyst, to an octahydronaphthalene compound of the formula and a vinyl ketone of the formula XCOCH=CH2 is added to the thus-obtained octahydronaphthalene compound in an inert solvent in the presence of a Lewis acid.
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Y and Z are ketalized carbonyl or free, esterified, or etherified hydroxymethylene; U is halogen; R1, R2, and R3 are lower alkyl; and R4 is alkyl; WHEREIN AN OCTAHYDRONAPHTHALENE COMPOUND OF Formula II II is converted, in the presence of bases, by reaction of a trialkyl chlorosilane of the formula (R5)3Si-Cl WHEREIN THE R5 each are lower alkyl group, to a hexahydronaphthalene compound of the formula The hexahydronaphthalene compound is hydrogenated, in an inert solvent with hydrogen in the presence of a platinum-, palladium-, or rhodium-containing hydrogenation catalyst, to an octahydronaphthalene compound of the formula and a vinyl ketone of the formula XCOCH=CH2 is added to the thus-obtained octahydronaphthalene compound in an inert solvent in the presence of a Lewis acid.</description><edition>2</edition><language>dan</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM ; 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SAUER G ; EDER U ; HAFFER G ; NEEF G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DK140476A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>dan</language><creationdate>1976</creationdate><topic>ACYCLIC OR CARBOCYCLIC COMPOUNDS</topic><topic>ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM</topic><topic>CHEMISTRY</topic><topic>HETEROCYCLIC COMPOUNDS</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>WIECHERT R</creatorcontrib><creatorcontrib>SAUER G</creatorcontrib><creatorcontrib>EDER U</creatorcontrib><creatorcontrib>HAFFER G</creatorcontrib><creatorcontrib>NEEF G</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WIECHERT R</au><au>SAUER G</au><au>EDER U</au><au>HAFFER G</au><au>NEEF G</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>FREMGANGSMADE TIL FREMSTILLING AF TRANS-DECALINDERIVATER</title><date>1976-10-15</date><risdate>1976</risdate><abstract>A process for the preparation of trans-decahydronaphthalene compounds of Formula I I wherein X is lower alkyl, -(CH2)3-Z-R2, -(CH2)3COOR4, or -(CH2)3CN; Y and Z are ketalized carbonyl or free, esterified, or etherified hydroxymethylene; U is halogen; R1, R2, and R3 are lower alkyl; and R4 is alkyl; WHEREIN AN OCTAHYDRONAPHTHALENE COMPOUND OF Formula II II is converted, in the presence of bases, by reaction of a trialkyl chlorosilane of the formula (R5)3Si-Cl WHEREIN THE R5 each are lower alkyl group, to a hexahydronaphthalene compound of the formula The hexahydronaphthalene compound is hydrogenated, in an inert solvent with hydrogen in the presence of a platinum-, palladium-, or rhodium-containing hydrogenation catalyst, to an octahydronaphthalene compound of the formula and a vinyl ketone of the formula XCOCH=CH2 is added to the thus-obtained octahydronaphthalene compound in an inert solvent in the presence of a Lewis acid.</abstract><edition>2</edition><oa>free_for_read</oa></addata></record>
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
title FREMGANGSMADE TIL FREMSTILLING AF TRANS-DECALINDERIVATER
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