Cyclic Boron Derivatives of Biurets [1]
نویسندگان
چکیده
Several l,3,5-triaza-2-boracyclohexa-4,6-diones have been prepared by condensation reactions of boranes with biurets; N-methylated species could be characterized by their 1H, U B and 13C NMR spectra. Some data are also reported on bicyclic bis(N,N',N"trimethylbiuret-l,5-diyl)borate(l-) salts and on a betaine consisting of two N,N',N"-trimethylbiuret moieties bonded to a central four-coordinate boron atom.
منابع مشابه
Preparation and Characterization of Some Isoelectronic Boron-Nitrogen Analogs of Substituted Uracil [1]
Several l ,3,5-triaza-2-boracyclohexa-4,6-diones, which are isoelectronic analogs of substituted uracil, have been prepared by condensation reactions of boranes with biurets. They include species containing a N H or B H unit as potentially reactive sites. The latter are extremely sensitive to hydrolysis but are readily handled as the 2-methylaminoethanol derivative containing fourcoordinate boron.
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