作者:Artur Mardyukov、André K. Eckhardt、Peter R. Schreiner
DOI:10.1002/anie.201915646
日期:2020.3.27
We present the first spectroscopic identification of hitherto unknown 1,1-ethenediol, the enol tautomer of acetic acid. The title compound was generated in the gas phase through flash vacuum pyrolysis of malonic acid at 400 °C. The pyrolysis products were subsequently trapped in argon matrices at 10 K and characterized spectroscopically by means of IR and UV/Vis spectroscopy together with matching
我们首次对迄今为止未知的 1,1-乙烯二醇(乙酸的烯醇互变异构体)进行了光谱鉴定。通过丙二酸在 400 °C 下的快速真空热解,在气相中生成标题化合物。随后将热解产物捕获在 10 K 的氩基质中,并通过红外和紫外/可见光谱进行光谱表征,并将其光谱数据与 CCSD(T)/cc-pCVTZ 和 B3LYP/6-311++ 的计算相匹配。 G(2d,2p) 理论水平。在 λ=254 nm 处光解时,烯醇重排为乙酸和乙烯酮。