Cobalt(II)porphyrin-Mediated Selective Synthesis of 1,5-Diketones via an Interrupted-Borrowing Hydrogen Strategy Using Methanol as a C1 Source
作者:Priyabrata Biswal、Shaikh Samser、Prakash Nayak、Vadapalli Chandrasekhar、Krishnan Venkatasubbaiah
DOI:10.1021/acs.joc.1c00476
日期:2021.5.7
A novel cobalt(II)porphyrin-mediated acceptorless dehydrogenation of methanol is reported for the first time. This methodology has been applied for the coupling of a variety of ketones with methanol to produce 1,5-diketones along with H2 and H2O as the environment friendly byproducts. This paradigm was also demonstrated for a one-pot synthesis of substituted pyridines using a sequential addition protocol
首次报道了新颖的钴(II)卟啉介导的甲醇无受体脱氢。该方法已用于多种酮与甲醇的偶联反应,以生产1,5-二酮以及H 2和H 2 O作为环境友好的副产物。还证明了使用连续加成方案一锅法合成取代吡啶的范例,其中1,5-二酮是在原位生成的。从许多实验,包括涉及氘标记的实验,提出质子化的钴(II)卟啉甲醇盐配合物可作为中间体与金属氢化物一起生成甲醛。