Diastereoselective Construction of 3-Aminooxindoles with Adjacent Stereocenters: Stereocontrolled Addition of γ-Substituted Allylindiums to Isatin Ketimines
作者:Nayyar Ahmad Aslam、Srinivasarao Arulananda Babu、Soniya Rani、Shivam Mahajan、Jagmohan Solanki、Makoto Yasuda、Akio Baba
DOI:10.1002/ejoc.201500340
日期:2015.7
The diastereoselectiveconstruction of 3-allyl-3-aminooxindoles that have two adjacentstereocenters has been achieved by the In-promoted Barbier-type addition of γ-substituted allylic halides to the C=N bond of isatinketimines. The reactions of cinnamyl-, crotyl-, and geranylindium compounds with isatinketimines proceeded in either aqueous or alcohol solution. The addition of a cyclohexenylindium
Schiff bases and hydrazones of substituted isatins (1-28), were prepared by reacting isatin and aromatic primary amines/hydrazines. A new series of the corresponding N-Mannich base (29-35) was synthesised by reacting them with formaldehyde and diphenyl amine. The chemical structures were confirmed by means of H-1-NMR, IR spectral data and elemental analysis. The compounds were screened for antibacterial activity against seven Gram (+) and seven Gram (-) standard and pathological bacterial strains by the paper disc diffusion technique. The minimum inhibitory concentrations of the active compounds were determined. 1-Diphenyl amino-methyl-3-(4-bromo phenylimino)-1,3-dihydro-indol-3-one (30) and 3-(4-bromo phenylimino)-5-nitro-1,3-dihydroindol-3-one (13) were found to be the most actives compounds of the series. Mannich bases exhibited higher activity than the corresponding Schiff bases. (C) 2001 Editions scientifiques et medicales Elsevier SAS.
Varma, Rajendra S.; Garg, Pradeep K., Journal of the Indian Chemical Society, 1981, vol. 58, p. 980 - 981
作者:Varma, Rajendra S.、Garg, Pradeep K.
DOI:——
日期:——
Varma,R.S.; Khan,I.A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1978, vol. 16, p. 1113 - 1114
作者:Varma,R.S.、Khan,I.A.
DOI:——
日期:——
VARMA R. S.; KHAN I. A., INDIAN. J. CHEM., 1978, B16, NO 12, 1113-1114