摘要:
Preparation of highly reactive isobutene homo- or copolymers with Mn=from 500 to 1 000 000 by polymerizing isobutene from technical C4 hydrocarbon streams having an isobutene content of from 1 to 90% by weight in the liquid phase in the presence of a dissolved, dispersed or supported catalyst complex, by using, as the catalyst complex, a protic acid compound I [H+]kYk−.Lx (I) Yk− weakly coordinating k-valent anion which comprises at least one hydrocarbon moiety, L neutral solvent molecules and x≧0.
摘要翻译:通过将异丁烯从异丁烯含量为1的工业C 4 O 4烃流聚合得到异丁烯,从而制备具有500至1 000 000的MOR的高反应异丁烯均聚物或共聚物 在溶解,分散或负载的催化剂配合物存在下,液相中为90重量%,通过使用作为催化剂配合物的质子化合物I <βin-line-formula description =“In-Line Formulas”end =“lead”?> [H + S] SUP> K SUP>。 in-line-formula description =“In-line Formulas”end =“tail”?> Y sup>弱配位的k价阴离子,其包含至少一个烃部分,L中性溶剂分子和x > = 0。
摘要:
Rhodium hydroformylation catalysts containing bisphosphite ligands of the formula I ##STR1## where -X- is a divalent bisarylene radical or R.sup.1,w is a divalent arylene, bisarylene or alkylene radical, andR.sup.1 and R.sup.2 are identical or different and are substituted or unsubstituted alkylene or ortho-arylene.
摘要:
Olefinically unsaturated compounds are hydroformylated in an organic reaction medium with the aid of rhodium complex catalysts which are soluble in the reaction medium by performing the reaction in the presence of water-insoluble rhodium complex catalysts and also in the presence of arylthiols of the general formula IAr--SH Iwhere Ar is substituted or unsubstituted aryl.
摘要:
Octadienols are prepared by teleomerization of 1,3-butadiene with water in the presence of carbon dioxide and a catalyst system comprising a palladium compound and a tertiary phosphorus compound by performing the reaction in the presence of a strong non-coordinating acid.
摘要:
2(5H)-furanones I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.5 - or C.sub.6 -cycloalkyl, C.sub.7 -C.sub.12 -aralkyl or aryl, are prepared by heating a 3-formylcarboxylate or 3-formylcarboxylic acid II ##STR2## where R.sup.3 is hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.5 - or C.sub.6 -cycloalkyl, C.sub.7 -C.sub.12 -aralkyl or aryl, to 100.degree.-450.degree. C. in the presence of an acidic catalyst.