An expeditious and efficient bromomethylation of thiols: enabling bromomethyl sulfides as useful building blocks
作者:Carolina Silva-Cuevas、Ehecatl Paleo、David F. León-Rayo、J. Armando Lujan-Montelongo
DOI:10.1039/c8ra04002h
日期:——
A new method for the bromomethylation of thiols using paraformaldehyde and HBr/AcOH, minimizes the generation of toxic byproducts. Synthetic utility of α-bromomethyl sulfides was demonstrated through umpolung and free radical chemistry.
Observation of Bromomethyl Ethers during the Bromomethylation of Aromatic Compounds
作者:Jerry D. St. Clair、James R. Valentine
DOI:10.1021/op050089z
日期:2005.11.1
A literature method claiming to avoid the generation of highly toxic intermediates during bromomethylation of aromatic compounds was investigated. Gas chromatography revealed that such toxic intermediates may be present in the reaction mass in significant concentration. Indeed, these intermediates can be the major components under certain reaction scenarios. It is thus inaccurate to consider this chemistry free of hazardous intermediates. These potential hazards should be considered in any laboratory or scale-up implementation of this chemistry.