Preparative procedure for obtaining the secondary and tertiary amines of o-carborane [1,2-dicarbadodecaborane(12)] series by lithiumaluminumhydridereduction of their acyl derivatives has been worked out.
The Wolff, Beckmann, Hofmann, Curtius and Schmidt rearrangements in the series of 3-o-carborane derivatives
作者:L.I. Zakharkin、V.N. Kalinin、V.V. Gedymin
DOI:10.1016/s0040-4020(01)90882-8
日期:1971.1
Using 3-o-carborane derivatives as examples it has been shown that the Wolff, Beckmann, Hofmann, Curtius and Schmidt rearrangements proceed through BC bond cleavage and migration of the electron rich 3-o-carboranyl group to an electron deficient center. The Bayer-Villiger reaction of (1-methyl-o-carborane-3-yl)phenylketone results in migration of the 1-methyl 3-o-carboranyl group.
Boronated protohaemins: synthesis and in vivo antitumour efficacy
作者:Valentina A. Ol'shevskaya、Roza G. Nikitina、Andrei V. Zaitsev、Valentina N. Luzgina、Elena G. Kononova、Tamila G. Morozova、Valentina V. Drozhzhina、Oleg G. Ivanov、Mikhail A. Kaplan、Valery N. Kalinin、Alexander A. Shtil
DOI:10.1039/b607766h
日期:——
pyrocarbonate or pivaloyl chloride. The water-soluble 1,3,5,8-tetramethyl-2,4-divinyl-6(7)-[2'-(closo-monocarbon-carborane-1''-yl)metho xycarbonylethyl]-7(6)-(2'-carboxyethyl)porphyrin Fe(III) (compound 9) exerted no discernible cytotoxicity for cultured mammalian cells, nor did it cause general toxicity in rats. Importantly, 9 demonstrated dose-dependent activity as a phototoxin in photodynamic therapy of
Ir-Catalyzed Selective B(3)-H Amination of <i>o</i>-Carboranes with NH<sub>3</sub>
作者:Yik Ki Au、Jie Zhang、Yangjian Quan、Zuowei Xie
DOI:10.1021/jacs.1c00593
日期:2021.3.24
Ammonia gas, NH3, is a cheap and widely used industrial feedstock, which has received tremendous research interests in its functionalization. This work reports a breakthrough in catalytic selective cage B(3)-H amination of o-carboranes with NH3 via Ir-catalyzed B-H/N-H dehydrocoupling, offering convenient and efficient access to a series of 3-NH2-o-carborane derivatives in moderate to high isolated
Electronic <i>versus</i> steric control in palladium complexes of carboranyl phosphine-iminophosphorane ligands
作者:José Luis Rodríguez-Rey、David Esteban-Gómez、Carlos Platas-Iglesias、Antonio Sousa-Pedrares
DOI:10.1039/c8dt04006k
日期:——
These potential (P, N) ligands were used to obtain palladium complexes (Pd1–Pd6) and, thus, study how the different inductive effect of the carboranyl substituents can modify the coordinating ability of the nitrogen atom. The structural analysis of the complexes revealed two different coordination modes for the ligands: the (P, N) chelatecoordination and the unexpected P-terminal coordination, which