摘要:
The invention provides a process for the telomerization of acyclic olefins having at least two conjugated double bonds (I) or mixtures comprising such olefins by means of nucleophiles (II) using a palladium-carbene complex as catalyst.
摘要:
Phosphinines of formula (I) can be combined with metal salts to prepare hydroformylation catalysts. The phosphinine complexes have two phosphorus centers that may be substituted with a variety of hetero atoms or alkyl substituents to modify the ligand characteristics of the phosphinine. Phosphinine metal complexes are employed under normal hydroformylation reaction conditions. The preparatory routes to the phosphinine ligands of formula (I) allow for their convenient synthesis.
摘要:
The present invention relates to a process for preparing a C13-alcohol mixture which is suitable, in particular, as precursor for the preparation of compounds having surfactant properties and of plasticizers.
摘要:
A bisphosphite of the formula I wherein R1, R2, R3 and R4 are each hydrogen, an aliphatic, alicyclic, aliphatic-alicyclic, aromatic, aromatic—aromatic, aliphatic-aromatic hydrocarbon or heterocyclic or aliphatic-heterocyclic group having from 1 to 50 carbon atoms, F, Cl, Br, I, —CF3, —OR7, —COR7, —CO2R7, —CO2M, —SR7, —SO2R7, —SOR7, —SO3R7, —SO3M, —CO2NR7R8, NR7R8, N═CR7R8, NH2, where R1 to R4 are identical or different and may be covalently linked to one another; R7 and R8 are each hydrogen, a substituted or unsubstituted, aliphatic or aromatic hydrocarbon radical having from 1 to 25 carbon atoms, and may be identical or different; M is an alkali metal, alkaline earth metal, ammonium or phosphonium ion; Q is a substituted or unsubstituted divalent aliphatic, alicyclic, aliphatic-alicyclic, aromatic, aliphatic-aromatic hydrocarbon, heterocyclic or aliphatic-heterocyclic radical having from 1 to 50 carbon atoms where HO-Q-OH is a diol; W and X are each a substituted or unsubstituted aliphatic, alicyclic, aliphatic-alicyclic, aromatic, aromatic—aromatic, aliphatic-aromatic hydrocarbon, heterocyclic or aliphatic-heterocyclic radical having from 1 to 50 carbon atoms which may be identical or different or covalently linked to one another, provided that when the phosphite oxygens linked to W and X are each linked to an aromatic ring, then they are linked to different aromatic rings, metal complexes thereof, and a method for the hydroformylation of olefins.
摘要翻译:式I的二亚磷酸酯,其中R 1,R 2,R 3和R 4各自为氢,具有1至50个碳原子的脂族,脂环族,脂族 - 脂环族,芳族,芳族 - 芳族,脂族 - 芳族烃或杂环或脂族杂环基 ,F,Cl,Br,I,-CF 3,-OR 7,-COR 7,-CO 2 R 7,-CO 2 M,-SR 7,-SO 2 R 7,-SOR 7,-SO 3 R 7,-SO 3 M,-CO 2 NR 7 R 8,NR 7 R 8,N = CR 7 R 8,NH 2, 其中R 1至R 4相同或不同并且可以彼此共价连接; R 7和R 8各自为氢,具有1至25个碳原子的取代或未取代的脂族或芳族烃基,并且可以相同或不同; M 是碱金属,碱土金属,铵或鏻离子; Q是具有1至50个碳原子的取代或未取代的二价脂族,脂环族,脂族 - 脂环族,芳族,脂族 - 芳族烃,杂环或脂族杂环基团,其中 HO-Q-OH是二醇; W和X各自是取代或未取代的脂族基 ,脂环族,脂族 - 脂环族,芳族,芳族 - 芳族,脂族 - 芳族烃,具有1至50个碳原子的杂环或脂族 - 杂环基,其可以相同或不同或共价连接,条件是当亚磷酸酯 连接到W和X各自连接到芳香环,然后它们连接到不同的芳环,其金属络合物和烯烃的加氢甲酰化方法。
摘要:
Aldehydes are prepared in a hydroformylation apparatus by the multiphase hydroformylation reaction of one or more olefins with hydrogen and carbon monoxide, where the continuous phase contains a solvent mixture and the hydroformylation catalyst is present in the continuous phase, at least one olefin is present in the dispersed phase, and the loading factor of the tube reactor is greater than or equal to 0.8.
摘要:
The invention relates to a process for preparing 1-octene by reacting 1,3-butadiene with a telogen of the formula H—X—Y—H, where X is O, N, S or P and Y is C, N or Si and X and Y bear, depending on their valence, further substituents, in the presence of a telomerization catalyst to form a telomer of the formula H2C═CH—CH2—CH2—CH2—CH═CH—CH2—X—Y—H, partially hydrogenating the telomer to form a 1-substituted 2-octene of the formula H3C—CH2—CH2—CH2—CH2—CH═CH—CH2—X—Y—H and dissociating the 1-substituted 2-octene to give 1-octene.
摘要:
The invention relates to a process for preparing 1-butene from technical mixtures which comprise at least 1-butene, isobutene, n-butane and 2-butenes by partial conversion of the isobutene present, distillative removal of a fraction comprising 1-butene and isobutene, and conversion of the isobutene present therein to tert-butyl ethers.
摘要:
Isobutene in isobutenic hydrocarbon mixtures is oligomerized over a solid acidic ion exchange resin, said acidic ion exchange resin containing, for example, sulfonic acid groups, some of whose protons have been exchanged for metal ions.