Synthese und Eigenschaften von 1,2,4,3-Thiadiazaboretidinen. Kristallstruktur des 2,4-Di-tert-butyl-3-phenyl-1,2,4,3-thiadiazaboretidins

Habben, Carl D.Carl D.HabbenHeine, AndreasAndreasHeineSheldrick, George M.George M.SheldrickStalke, DietmarDietmarStalkeBühl, MichaelMichaelBühlvon Ragué Schleyer, PaulPaulvon Ragué Schleyer2019-07-092019-07-091991https://resolver.sub.uni-goettingen.de/purl?gro-2/60092Crystal Structure of 2,4-Di-tert-butyl-3-phenyl-1,2,4,3-thiadiazaboretidine Reaction of sulfur diimides with alkyl(aryl)bis(methylthio)boranes leads to reductive 1,3-cycloaddition of the Np. sequence with formation of the 1,2,4,3-thiadiazaboretidines 2a-g. NMR (1H, 11B, 13C, 15N, 29Si), mass spectra and the results of the X-ray analysis of 21 are reported and discussed. The 11B chemical shifts have been calculated for 3-phenyl-1,2,4,3-thiadiazaboretidine and some related model compounds by the IGLO method and correlate acceptably with the experimental values.deGoescholarhttps://goescholar.uni-goettingen.de/license540Synthese und Eigenschaften von 1,2,4,3-Thiadiazaboretidinen. Kristallstruktur des 2,4-Di-tert-butyl-3-phenyl-1,2,4,3-thiadiazaboretidinsSynthesis and Properties of 1,2,4,3-Thiadiazaboretidinesjournal_article10.1002/cber.19911240108https://resolver.sub.uni-goettingen.de/purl?goescholar/3317