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CN101980780A α,β-不饱和羧酸的脱羧加氢甲酰基化方法 无效 - 撤回

α,β-不饱和羧酸的脱羧加氢甲酰基化方法
摘要：
本发明涉及一种通过使α，β-不饱和羧酸或其盐与一氧化碳和氢气在催化剂的存在下反应而制备醛的方法，其中所述催化剂含有元素周期表VIII过渡族金属与至少一种式(I)化合物的至少一种络合物，其中Pn为磷属元素原子；W为在侧接键之间具有1-8个桥原子的二价桥基；R1为能与式(I)化合物的-X(＝O)OH基团形成至少一个分子间非共价键的官能团；R2、R3在每种情况下各自为任选被取代的烷基、环烷基、杂环烷基、芳基或杂芳基，或与所述磷属元素原子一起以及如果存在的话与基团Y2和Y3一起形成任选稠合和任选被取代的5-8元杂环；a、b和c各自为0或1；且Y1、Y2、Y3各自相互独立地为O、S、NRa或SiRbRc，其中Ra、Rb、Rc各自为H或在每种情况下任选被取代的烷基、环烷基、杂环烷基、芳基或杂芳基。本发明还涉及上述催化剂在α，β-不饱和羧酸的脱羧加氢甲酰基化中的应用。
摘要（英）：

The invention relates to a method for producing aldehydes by reacting an alpha,beta-unsaturated carboxylic acid or the salt thereof with carbon monoxide and hydrogen in the presence of a catalyst, said catalyst comprising at least one complex of a metal of subgroup VIII of the periodic system of the elements with a compound of formula (I), wherein Pn represents pnicogen; W represents a bivalent bridging group with 1 to 8 bridging atoms between the flanking bonds; R1 represents a functional group capable of forming at least one intermolecular, non-covalent bond with the group -X(=O)OH of the compound of formula (I); R2, R3 represent optionally substituted alkyl, cycloalkyl, heterocycloalkyl, aryl or hetaryl each, or together with the pnicogen atom, and, if applicable, together with the groups Y2 and Y3 represent a non-anellated or anellated and unsubstituted or substituted 5- to 8-membered heterocycle; a, b and c is 0 or 1; and Y1, Y2, Y3 independently represent O, S, NRa, or SiRbRc, wherein Ra, Rb, Rc represent H or unsubstituted or substituted alkyl, cycloalkyl, heterocycloalkyl, aryl or hetaryl each. The invention also relates to the use of said catalyst for the decarboxylating hydroformylation of alpha,beta-unsaturated carboxylic acids.

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