EP 0994837 A1 20000426 - METHOD FOR PRODUCING BUTENYL ETHERS
Title (en)
METHOD FOR PRODUCING BUTENYL ETHERS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON BUTENYLETHERN
Title (fr)
PROCEDE POUR LA PREPARATION DE BUTENYLETHERS
Publication
Application
Priority
- DE 19725872 A 19970618
- EP 9803368 W 19980605
Abstract (en)
[origin: DE19725872A1] The invention relates to a method for producing butenyl ethers of formula (I) CH3-CH=CH-CH2-OH by reacting butadiene or hydrocarbon flows containing butadiene with alcohols of formula (II) ROH at a high temperate and high pressure in the presence of transition metal complexes containing ligands or compounds of elements of group V of the periodic table of elements to form an isomeric mixtures consisting of butenyl ethers of formula (I) and butenyl ethers of formula (III) CH2=CH-CH(OR)-CH3 and by optionally isomerizing butenyl ethers of formula (III) into butenyl ethers of formula (I), wherein R stands for an alkyl or alkenyl group with 1 to 20 C atoms, an aryl group with 6 to 10 C atoms or an aralkyl group with 7 to 11 C atoms and the radicals R can be substituted by hydroxy or alkoxy groups, whereby a complex of a transition metals from group (VIII) of the periodic table of elements is used as a catalyst with ligands of formula (IV), wherein M stands for an iron, cobalt, nickel or ruthenium ion, X is a binding link in the form of an optionally substituted methylene or alkyl substituted silylene group, wherein n is 0 to 3, R<1> to R<4> mean independent from each other and also independent from each other in both cyclopentadiene radicals hydrogen or alkyl, cycloalkyl, aryl or aralkyl radicals with up to 40 C atoms or can be part of an isocyclic or heterocyclic ring system, wherein both cyclopentadiene radicals can be bridged by the radicals R<1> to R<4>, Y means nitrogen, arsenic, antimony or phosphorous and the radicals R<5> and R<6> mean independently and also independently from each other in both molecules of the sandwich complex hydrogen or alkyl, cycloalkyl, aryl or aralkyl groups with up to 24 C atoms.
IPC 1-7
IPC 8 full level
C07C 41/06 (2006.01); C07C 41/32 (2006.01)
CPC (source: EP US)
C07C 41/06 (2013.01 - EP US); C07C 41/32 (2013.01 - EP US)
Citation (search report)
See references of WO 9857915A1
Designated contracting state (EPC)
AT BE DE ES FI FR GB IT NL SE
DOCDB simple family (publication)
DE 19725872 A1 19981224; AU 8213498 A 19990104; CA 2286854 A1 19981223; EP 0994837 A1 20000426; US 6271423 B1 20010807; WO 9857915 A1 19981223
DOCDB simple family (application)
DE 19725872 A 19970618; AU 8213498 A 19980605; CA 2286854 A 19980605; EP 9803368 W 19980605; EP 98932124 A 19980605; US 44541099 A 19991208