Synthesis of 1,3-thioxoketones from salicylaldehyde
作者:I. S. Semenova、V. N. Yarovenko、K. S. Levchenko、M. M. Krayushkin
DOI:10.1007/s11172-013-0135-9
日期:2013.4
A method for the synthesis of monothiodibenzoylmethanes was developed. The method involves a reaction of potassium thioacetate with 1-(2-hydroxyphenyl)-3-phenylpropynone prepared from salicylaldehyde.
Synthesis of halogenated/nitrated flavone derivatives and evaluation of their affinity for the central benzodiazepine receptor
作者:Mariel Marde、Juan Zinczuk、María I. Colombo、Cristina Wasowski、Haydee Viola、Claudia Wolfman、Jorge H. Medina、Edmundo A. Rúveda、Alejandro C. Paladini
DOI:10.1016/s0960-894x(97)00343-0
日期:1997.8
A series of halogenated/nitrated flavone compounds were synthesized. Some of the products were found to be potent central benzodiazepine receptor (BDZ-R) ligands. The structure-activity relationships (SAR) analysis of the new synthetic compounds, together with that of others already described, indicates that substitutions at position 6 or 6 and 3' in the flavone nucleus are the only ones that give rise to high affinity BDZ-R ligands. (C) 1997 Elsevier Science Ltd.
New Synthesis of 3-Bromoflavones via Bromination of 1-(2-Hydroxyphenyl)-3-arylpropane-1,3-dione by CuBr<sub>2</sub>, and Conversion into 3-Aminoflavones
A new synthesis of 3-bromoflavones from 1-(2-hydroxyphenyl)-3-arylpropane-1,3-dione using CuBr2 is described. The usefulness of 3-bromoflavone as a precursor of 3-aminoflavone is also described.