Khurana, Jitender M.; Maikap, Golak C. published the article 《Bromomethylation of aromatics mediated by low frequency ultrasound》. Keywords: ultrasound aromatic bromomethylation.They researched the compound: 1-(Bromomethyl)-4-ethylbenzene( cas:57825-30-6 ).Product Details of 57825-30-6. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:57825-30-6) here.
Bromomethylation of aromatics mediated by low frequency ultrasound yielded bromomethylated aromatic rings which are useful synthetic intermediates. E.g., PhMe was bromomethylated with paraformaldehyde, 48% aqueous HBr and glacial HOAc on exposure to ultrasound to give 90% 4-methylbenzyl bromide. Among the 7 other compounds similarly prepared were 93% 2,5-dimethylbenzyl bromide, 93% 4-ethylbenzyl bromide, 92% 1-bromomethylnaphthalene and 95% 1-bromomethyl-2-methylnaphthalene.
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Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider