3163-24-4Relevant academic research and scientific papers
1-Benzyl-4-aza-1-azoniabicyclo[2.2.2]octane tribromide as a regenerable and useful reagent for bromination of phenols under mild conditions
Hajipour, Abdol R.,Pourmousavi, Seied A.,Ruoho, Arnold E.
, p. 796 - 800 (2007/10/03)
1-Benzyl-4-aza-1-azoniabicyclo[2.2.2]octane tribromide has been examined over several phenolic compounds under mild conditions. The reaction gives brominated phenols in good to excellent yields. Straightforward work-up of the reaction yields pure products in several cases.
A controlled and selective bromination of phenols by benzyltriphenylphosphonium tribromide
Hajipour, Abdol Reza,Mallakpour, Shadpour E.,Imanieh, Hossein,Pourmousavi, Seied A.
, p. 272 - 275 (2007/10/03)
Reactions of phenols with benzyltriphenylphosphonium tribromide in dichloromethane-methanol mixture (2:1) gave mono, di and tri brominated phenols at room temperature with high selectivity and good yields.
Bromination of Phenols by Use of Benzyltrimethylammonium Tribromide
Kajigaeshi, Shoji,Kakinami, Takaaki,Tokiyama, Hajime,Hirakawa, Takahiro,Okamoto, Tsuyoshi
, p. 627 - 630 (2007/10/02)
The reaction of phenols with benzyltrimethylammonium tribromide in dichloromethane-methanol for 1 h at room temperature gave polybromophenols in good yields.
The Synthesis and Ring-contraction of Halogenated Hydroxyquinones; a New Synthesis of Cryptosporiopsin
Henderson, Graeme B.,Hill, Robert A.
, p. 2595 - 2599 (2007/10/02)
Syntheses of 2,6-dichloro- and 2,6-dibromo-3-hydroxy-5-alkyl-1,4-benzoquinones have been developed involving oxidation of trihalogenoresorcinol derivatives with Fremy's salt.The reactions of these quinones have been studied and their ring-contraction to cyclopentenoid structures on treatment with N-halogenosuccinimides is reported.This sequence of reactions has been used in an efficient synthesis of the fungal metabolite cryptosporiopsin.
