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of 17
pro vyhledávání: '"Siphamandla Sithebe"'
Autor:
Siphamandla Sithebe
Publikováno v:
Molbank, Vol 2023, Iss 1, p M1569 (2023)
In this paper, a synthesis and characterization of a novel three coordinate 2-{9-(10-Bromoanthracenyl)}-1,3-dihydro-1H-[d]-1,3,2-benzodiazaborole from a cyclo-condensation reaction of o-phenylenediamine and 10-bromoanthracene-9-boronic acid is descri
Externí odkaz:
https://doaj.org/article/a41eef8079e54029a701fc54f9417c80
Publikováno v:
Molbank, Vol 2023, Iss 1, p M1537 (2022)
In this paper, we report the crystal structure of 2-[2-(diphenylphosphoryl)phenyl]-1H-perimidine (L1) obtained from the ring closure reaction of 1,8-diaminonaphthalene and 2-(diphenylphosphino)benzaldehyde, followed by the dehydrogenation reaction wi
Externí odkaz:
https://doaj.org/article/559aa0ba894e483fa0da94f87004ce5b
Publikováno v:
Molbank, Vol 2022, Iss 4, p M1496 (2022)
We report the crystal structure of bis[N-(4-bromophenyl)pyridine-2-carboxamidato]Palladium (C1) which was isolated from the reaction of aqueous potassium tetrachloropalladate(II) and N-(4-bromophenyl)-pyridine-2-carboxamide in dichloromethane under n
Externí odkaz:
https://doaj.org/article/b8cf523cb4ea4c4cbee13442f6986d63
Autor:
Siphamandla Sithebe, Ross S. Robinson
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 1107-1113 (2014)
There has been a significant interest in organoboron compounds such as arylboronic acids, arylboronate esters and potassium aryltrifluoroborate salts because they are versatile coupling partners in metal-catalysed cross-coupling reactions. On the oth
Externí odkaz:
https://doaj.org/article/eaf2a7d3d2014a16b15a9782115ff388
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 7, Pp o2241-o2241 (2012)
The title compound, C13H13BN2O, is one in a series of 1,3,2-benzodiazaboroles featuring a 2-methoxyphenyl substitution at the 2-position in the nitrogen–boron heterocyle. The dihedral angle between the mean planes of the benzodiazaborole and 2-meth
Externí odkaz:
https://doaj.org/article/7312ace341044ea1a8b65b48baed5a94
Publikováno v:
Journal of Chemical Education. 97:675-680
Practical skills in chemistry are considered an essential outcome of an undergraduate chemistry degree. To achieve this, chemistry curricula are designated a substantial number of hours in teaching laboratories. However, the general method of a summa
Autor:
Patience Molefe, Siphamandla Sithebe
Publikováno v:
Journal of Organometallic Chemistry. 846:305-311
The first simple and efficient base free Pd(PPh3)4 catalysed synthesis of substituted aryl ketones from acyl chlorides and easily accessible sodium aryl trihydroxyborate salts in aqueous toluene is reported. The reaction conditions appeared versatile
Publikováno v:
Polyhedron. 117:755-760
In this research study, the coordination behaviours of perimidine ligands incorporating fused N-donor heterocyclics towards rhenium in its oxidation states +I and +V are explored. The equimolar coordination reactions of 2-(benzothiazole)-2,3-dihydro-
Publikováno v:
Synthetic Communications. 45:1484-1491
The synthesis of quinoxalines via a tandem oxidation process using a copper acetate monohydrate/2,2,6,6-tetramethylpiperidine N-oxyl (TEMPO) oxidative system has been described. Using this approach, a series of quinoxaline derivatives were formed in
Microwave-assisted Suzuki–Miyaura cross-coupling of 2-alkyl and 2-alkenyl-benzo-1,3,2-diazaborolanes
Publikováno v:
Tetrahedron. 67:4277-4282
Nitrogen-based boronate esters, such as 2-octyl-benzo-1,3,2-diazaborolane, 2-phenethyl-benzo-1,3,2-diazaborolane, and 2-{(1E)-hexenyl}-benzo-1,3,2-diazaborolane have been shown to be suitable coupling partners with arylhalides in microwave accelerate