کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1324659 1499946 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reactions of β-diketiminatoaluminum hydrides with tert-butyl hydrogenperoxide – Facile formation of dialuminoxanes containing Al–O–Al groups
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Reactions of β-diketiminatoaluminum hydrides with tert-butyl hydrogenperoxide – Facile formation of dialuminoxanes containing Al–O–Al groups
چکیده انگلیسی

Treatment of diphenyl-β-diketiminatoaluminum dihydride, LAlH2 [1, L = {H5C6–NC(Me)}2CH] with neopentyl- or trimethylsilylmethyllithium afforded the corresponding alkylderivatives LAlH(R) [R = CH2–SiMe3 (2), CH2–CMe3 (3)] by the precipitation of lithium hydride. Deprotonation of a methyl group instead of salt elimination occurred by the similar reaction of the more basic alkyllithium compound LiC(SiMe3)3. The reactions of the hydrides 1–3 with tert-butyl hydrogenperoxide did not yield the expected peroxo derivatives, instead the dialuminoxanes LAl(R)–O–Al(R)L [R = OCMe3 (5), CH2SiMe3 (6), CH2CMe3 (7)] were isolated in high yields. Their Al–O–Al bridges deviated from linearity and had Al–O–Al bond angles of about 155° on average.

The reactions of β-diketiminatoaluminum hydrides with tert-butyl hydrogenperoxide open the facile access to dialuminoxanes having almost linear Al–O–Al bridges.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Organometallic Chemistry - Volume 694, Issues 7–8, 1 April 2009, Pages 1101–1106
نویسندگان
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