118631-44-0Relevant articles and documents
Silica sulfuric acid-promoted deacylation of α-bromo-β-diketones
Aoyama, Tadashi,Kubota, Sho,Takido, Toshio,Kodomari, Mitsuo
, p. 484 - 485 (2011)
Novel deacylation of α-bromo-β-diketones using silica sulfuric acid (SSA) has been developed. Deacylation of 3- bromopentane-2,4-diones and 2-bromobutane-1,3-diones were carried out in the presence of SSA in dichloroethane under mild conditions to obtain the corresponding α-bromo ketones in good to excellent yields. SSA also promoted the FriedelCrafts type alkylation of benzene with 3-(sec-alkyl)-2,4-pentanediones to give the corresponding triarylmethanes in high yields in benzene.
Direct synthesis of α-bromoketones from alkylarenes by aerobic visible light photooxidation
Tada, Norihiro,Ban, Kazunori,Hirashima, Shin-Ichi,Miura, Tsuyoshi,Itoh, Akichika
supporting information; experimental part, p. 4701 - 4704 (2010/11/17)
The direct synthesis of α-bromoketones from alkylarenes by aerobic photooxidation with hydrobromic acid is reported. The key success for this direct oxidative reaction is due to control of bromination with acetic acid and ethanol, which are generated in situ by solvolysis of ethyl acetate in the course of the reaction.