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Title: Steric C-N bond activation on the dimeric macrocycle [{P(μ-NR)}2(μ-NR)]2
Authors: Shi, Yan X.
Liang, Rong Z.
Martin, Katherine A.
Star, Daniel G.
Díaz Álvarez, Jesús
Lin, Xin Y.
Ganguly, Rakesh
García García, Felipe
Keywords: Dímeros ciclofosfazenos;Selenio;Isobutileno;Dimeric cyclophosphazanes;Selenium;Isobutylene
Issue Date: 2015
Publisher: Royal Society of Chemistry
Abstract: Dimeric cyclophosphazanes [{P(μ-NR)}2(μ-NR)]2 [R = tBu ( 1) and iPr ( 3)] were oxidized with elemental selenium. During these reactions an unexpected C–N bond cleavage and N–H bond formation occurred. Compound 1 produced P4(μ-NtBu)3(μ-NH)3Se4 ( 2) where three tBu groups were lost in the form of isobutylene. In contrast, during the oxidation of the less sterically hindered 3, the resulting product, P4(μ-NiPr)5(μ-NH)Se4 ( 4), showed only one substituent loss. Theoretical studies confirmed the steric nature of the driving force underlying the different outcomes.
ISSN: 1359-7345
DOI: 10.1039/C5CC06034F
Appears in Collections:DQOIN - Artículos

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