Structure of disilylated acetoacetohydroxamic acid

…, V Blechta, J Sýkora, J Roithová

Index: Schraml, Jan; Hetflejs, Jiri; Sabata, Stanislav; Blechta, Vratislav; Sykora, Jan; Roithova, Jana Collection of Czechoslovak Chemical Communications, 2004 , vol. 69, # 7 p. 1472 - 1478

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Citation Number: 3

Abstract

Abstract As proved by 29 Si and 15 N NMR spectra, the reaction of N, O-bis (trimethylsilyl) hydroxylamine with diketene yields a mixture of E and Z isomers of O, O'-bis (trimethylsilyl) acetoacetohydroximic acid ((E)-3 and (Z)-3), and not the conformers of N, O-bis (trimethylsilyl) acetoacetohydroxamic acid (1), as believed up to now. In contrast, the acetylation of N, O-dimethylhydroxylamine leads to methyl N-methylacetohydroxamate (5), ...