946492-25-7Relevant academic research and scientific papers
Alternative synthesis of 1,2,3,4-tetramethoxy-5-methylbenzene: A key intermediate for preparing coenzyme Q homologs and analogs
Yang, Jian,Weng, Lingling,Zheng, Hu
, p. 2401 - 2405 (2006)
Preparation of 1,2,3,4-tetramethoxy-5-methylbenzene (1) through a new process from pyrogallol is described. In the preparation, a modified mild brominating agent was employed, and a simple introduction of methyl group into aromatic ring through chloromethylation of the corresponding substrate (4), followed by reductive dehalogenation, was achieved successfully with good yields. Copyright Taylor & Francis Group, LLC.
Radical reactions leading to substituted coumarins
Giraud, Anne,Vanelle, Patrice,Giraud, Luc
, p. 4321 - 4322 (2007/10/03)
The reaction of 4-hydroxycoumarins with a series of quinonic chlorides under photostimulation was shown to provide an efficient approach to 3- alkylated coumarin derivatives. Alkylation reactions of this type proceeded via an electron transfer mechanism (
