The copper-mediated aerobic oxidative cleavage of α,β-unsaturated ketones to synthesize 1,2-diketones by using potassium acetate as a catalyst and sodium iodide as a promoter in acetic acid is described. The protocol has the advantages of using inexpensive and non-toxic raw materials, high yield and simple work-up procedure.
Synthesis, antileukemic and antiplatelet activities of 2,3-diaryl-6,7-dihydro-5H-1,4-diazepines
作者:R. Ramajayam、Rajani Giridhar、M.R. Yadav、R. Balaraman、Hakim Djaballah、David Shum、Constantin Radu
DOI:10.1016/j.ejmech.2007.11.023
日期:2008.9
The synthesis, antileukemic and antiplatelet activity evaluation of 2,3-diaryl-6,7-dihydro-5H-1,4-diazepines are described. In general, it was found that compound 17o showed moderate antileukemicactivity against MOLT3 human leukemic cancer cell lines. An arachidonic acid induced platelet aggregation effect on washed rat platelets was studied. Compound 17i was found to be the most potent. The antiplatelet
Alpha-dicarbonyl compounds 7-12 can be easily prepared by reaction of methylene chloride solutions of several alpha-substituted arylacetaldehydes 1-6 with a slight excess of tris-(o,p-dibromophenyl) ammoniumyl hexachloro antimonate A.
Shirude; Patel; Giridhar, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2006, vol. 45, # 4, p. 1080 - 1085