Selective hydroformylation-hydrogenation tandem reaction of isoprene to 3-methylpentanal
作者:Arno Behr、Sebastian Reyer、Nils Tenhumberg
DOI:10.1039/c1dt11292a
日期:——
The hydroformylation of isoprene catalysed by rhodium phosphine complexes usually yields a broad mixture of the monoaldehydes, the isomeric methylpentenals, as well as the dialdehyde 3-methyl-1,6-hexandial. Under usual reaction conditions the products of a consecutive hydrogenation are only formed as minor by-products. Surprisingly we discovered now a selective auto-tandem reaction consisting of a
的加氢甲酰化 异戊二烯铑膦配合物催化通常会生成单醛,异构甲基戊烯醛以及3-醛-1,6-己二醛二醛的广泛混合物。在通常的反应条件下,连续氢化的产物仅作为次要副产物形成。出乎意料的是,我们现在发现了选择性的自动串联反应,该反应由加氢甲酰化和加氢步骤组成(如果铑与螯合配体配合)双(二苯基膦基)乙烷用作催化剂。如支链芳族溶剂如枯烯 适用于 异戊二烯 几乎是定量的,串联产物的产量 3-甲基戊醛 达到85%。