Aggregation studies of lithium dialkylamides. The role of aggregates in the carbonylation reaction
作者:N. S. Nudelman、E. Lewkowicz、J. J. P. Furlong
DOI:10.1021/jo00059a042
日期:1993.3
C-13 NMR spectroscopy and isotopic exchange in carbonylation intermediates have been successfully employed to characterize aggregation of lithium dialkylamides in THF solution. It is shown that lithium (3-oxapentamethylene)amide forms a 1:1 mixed aggregate with morpholine. The aggregate remains even in diluted THF solution. Lithium pentamethyleneamide also forms aggregates with piperidine while the less acidic amines do not form mixed aggregates with the corresponding lithium dialkylamide either in the solid state or in THF solution. The product composition in the carbonylation reaction of lithium dialkylamides is highly dependent on their aggregation states, and this phenomenon can be successfully used for synthetic purposes.
Carbon-carbon bond formation through the carbonylation of lithium dialkylamides. One-pot synthesis of N-alkyl-substituted formamides, glyoxylamides, and hydroxymalonamides
作者:Daniel G. Perez、N. Sbarbati Nudelman
DOI:10.1021/jo00237a033
日期:1988.1
Furlong, Jorge J.; Lewkowicz, Elizabeth S.; Nudelman, Norma S., Journal of the Chemical Society. Perkin transactions II, 1990, # 8, p. 1461 - 1465
作者:Furlong, Jorge J.、Lewkowicz, Elizabeth S.、Nudelman, Norma S.
DOI:——
日期:——
Insertion of carbon monoxide into lithium-nitrogen bonds. One-pot synthesis of dialkylformamides and dialkylgloxylamides
作者:N. Sbarbati Nudelman、Daniel Perez
DOI:10.1021/jo00149a030
日期:1983.1
FURLONG, JORGE J. P.;LAWKOWICZ, ELIZABETH S.;NUDEEMAN, NORMA S., J. CHEM. SOC. PT 2. PERKIN TRANS.,(1990) N, C. 1461-1465
作者:FURLONG, JORGE J. P.、LAWKOWICZ, ELIZABETH S.、NUDEEMAN, NORMA S.