Lei, Ying-jie published the artcileUltrasound assisted synthesis and antibacterial activity of 4-(coumarin-3-yl)-2-arylaminothiazoles, Category: chlorides-buliding-blocks, the publication is Huaxue Shiji (2018), 40(6), 518-522, 588, database is CAplus.
In this work, 3-(2-bromoacetyl)-2H-chromen-2-ones prepared from 3-acetyl coumarins with tetrabutylammonium tribromide on bromination were used as the raw material. An efficient approach toward the synthesis of 4-(coumarin-3-yl)-2-arylaminothiazoles was carried out by the reaction of the starting compounds with certain Ph thioureas in presence of PEG-400 under ultrasound irradiation at a frequency of 40 kHz in 20â?0 min, with a yield of 81.6%â?3.0%. The structures of target compounds were confirmed by IR, 1HNMR, 13CNMR, MS and elemental anal. Preliminary bioassay results showed that some of them have certain antibacterial activities against Staphylococcus aureus, Bacillus subtilis and Escherichia coli. This method is operationally simple and environmentally benign and the solvent could be reused for several times.
Huaxue Shiji published new progress about 3696-23-9. 3696-23-9 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Thiourea,Amine,Benzene,Amide, name is 1-(4-Chlorophenyl)thiourea, and the molecular formula is C7H7ClN2S, Category: chlorides-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics