The present invention relates to the use of a transition metal catalyst TMC1, which comprises a transition metal M selected from metals of groups 7, 8, 9 and 10 of the periodic table of elements according to IUPAC and a tetradentate ligand of formula I wherein R1 are identical or different and are each an organic radical having from 1 to 40 carbon atoms, and R2 are identical or different and are each an organic radical having from 1 to 40 carbon atoms, as catalyst in processes for formation of compounds comprising at least one carboxylic acid ester functional group -O-C(=O)- starting from at least one primary alcohol and/or hydrogenation of compounds comprising at least one carboxylic acid ester functional group -O-C(=O)-. The present invention further relates to a process for hydrogenation of a compound comprising at least one carboxylic acid ester functional group -O-C(=O)-, to a process for the formation of a compound comprising at least one carboxylic acid ester functional group -O-C(=O)- by dehydrogenase coupling of at least one primary alcohol with a second alcoholic OH-group, to a transition metal complex comprising the tetradentate ligand of formula I and to a process for preparing said transition metal complex.
本发明涉及一种过渡
金属催化剂TMC1的使用,该催化剂包括根据IU
PAC周期表元素第7、8、9和10族的过渡
金属M以及式I的四齿
配体,其中R1相同或不同,每个是有1至40个碳原子的有机基团,R2相同或不同,每个是有1至40个碳原子的有机基团,作为催化剂用于从至少一种一级醇和/或含至少一个
羧酸酯功能基团-O-C(=O)-的化合物的氢化反应中形成至少含有一个
羧酸酯功能基团-O-C(=O)-的化合物的过程。本发明还涉及一种含至少一个
羧酸酯功能基团-O-C(=O)-的化合物的氢化过程,一种通过至少一种一级醇与第二个醇基团OH的脱氢酶偶联形成至少含有一个
羧酸酯功能基团-O-C(=O)-的化合物的方法,一种包含式I四齿
配体的过渡
金属配合物,以及一种制备所述过渡
金属配合物的方法。