Srikrishna, Devulapally published the artcilePEG-600 mediated one-pot reaction of 3-acetyl-2H-chromen-2-one with heterylthiols and phenylthioureas using tetrabutylammonium tribromide as an efficient green reagent, Application of 1-(4-Chlorophenyl)thiourea, the publication is New Journal of Chemistry (2017), 41(12), 5168-5175, database is CAplus.
A simple method for the one-pot reaction of 3-acetyl-2H-chromen-2-one with different heterylthiols and phenylthioureas under green conditions using tetrabutylammonium tribromide (TBATB) as an efficient reagent has been described. 3-Acetyl-2H-chromen-2-one was reacted with TBATB in acetic acid to give 3-(2-bromoacetyl)-2H-chromen-2-one. Poly(ethylene glycol) 600 (PEG-600) was found to be the effective solvent for this reaction. Thus, a one-pot reaction of equimolar amounts of 3-acetyl-2H-chromen-2-one, TBATB and heterylthiols or phenylthioureas, resulted in the formation of heterylthioacetylcoumarins I (X = NH, O, S) or coumarinylthiazoles II (Ar = C6H5, 4-FC6H4, 2-Cl-4-FC6H3, etc.), resp. The effect of the solvent on these reactions was studied. The merits of this preparation are the mild reaction conditions, easy workup, good yields and use of PEG-600 as a green reaction medium.
New Journal of Chemistry 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 C9H9NO, Application of 1-(4-Chlorophenyl)thiourea.
Referemce:
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